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Indian Journal of Weed Science


Print ISSN: 0253-8050
Online ISSN: 0974-8164

NAAS rating: 5.84

Chief Editor

J.S. Mishra
Dr. J.S. Mishra
Principal Scientist, Division of Crop Research,
ICAR Research Complex for Eastern Region,
Bihar Veterinary College, Patna - 800014 (Bihar)
Mobile - +91 9494240904
Email- editorisws@gmail, jsmishra31@gmail.com

Associate editors

Bhagirath S. Chauhan

Dr. Bhagirath Singh Chauhan
Queensland Alliance for Agricultureand Food Innovation
Level 2, Queensland Bioscience Precinct
The University of Queensland
St Lucia QLD 4069, Australia
Email: b.chauhan@uq.edu.au
A.N. Rao
Dr. A.N. Rao
Hydarabad, INDIA
Mobile Number: +91 9440372165
Email: adusumilli.narayanarao@gmail.com

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-53, ISSUE-1 March-(2021)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-51, ISSUE-4 December-(2019)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.
Read More

Guidelines for Authors

Indian Journal of Weed Science is a quarterly journal publishing original research article, research notes, opinion articles and review articles (invited or with prior approval of the title reflecting substantial contributions of the author) covering all areas of weed science research. All contributions must be of a sufficient quality to extend our knowledge in weed science.

The papers submitted should not have been published or communicated elsewhere. Authors will be solely responsible for the factual accuracy of their contribution. Manuscript should not carry any material already published in the same or different forms.

  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Format

Full length article should be suitably divided into the following sub-sections; ABSTRACT, Key words, INTRODUCTION, MATERIALS AND METHODS, RESULTS AND DISCUSSION and REFERENCES. The heading, introduction need not be mentioned in the text.

Title

The title of article should be informative but concise and should not contain abbreviations. It should indicate the content of the article essential for key word indexing and information retrieval. It should be set in small and bold letters. A good title briefly identifies the subject, indicates the purpose of study and introduces key terms and concepts. Title should not be started with the waste words like 'a study of', 'effect of', 'influence of' , 'some observations on', 'a note of' etc. The title should indicate preferably English name or most popular common name of the crops or organisms studied, wherever relevant. Scientific name can be given in abstract and introduction. Authority for such a name should be given at first mention in the text. A short title should be given for running headlines and should cover the main theme of the article.

Author(s) name(s) and affiliations

The name(s) of the author(s) should be given in small letters with sentence case separated by 'comma' or by 'and'. Institute name where the research was carried out should be given in italics. If authors are of different institutes, these can be mentioned by allotting number like 1, 2 or 3 as superscript over the name of author. The affiliation of such author may be given below of the corresponding author email address. Sometimes authors retire and change frequently and wish to give their current address, this should be given as foot note. Email address of main author or corresponding author should be given at the bottom.

Abstract

The abstract should contain at least one sentence on each of the following: objective of investigation (hypothesis, purpose, collection, result and conclusions). Give complete scientific name for plants or other organisms and full name of any symbol or abbreviations used. There is a need to mention place, name and priod of study in abstract. Emphasis should be given to highlight the results and the conclusion of the study. It should not exceed a total length of 200-250 words. Abstract should not have the words like 'will be explained or will be discussed'.

Key words

(5 6) should be given at the end of the abstract and should be arranged alphabetically. Each key word should be started with capital letter and separated by comma ( , ) from other words.

Introduction

Introduction should be brief and to the point, cover the problem and should justify the work or the hypothesis on which it is based. In introduction, a detail review is not necessary. However, to orient readers, important references about previous concepts and research should be given. It should briefly state the currently available information and should identify the research gap that is expected to be abridged through this investigation. Give preference to recent references from standard research publication unless it is of historical importance or a landmark in that field.

Materials and Methods

This part should begin with information relating to period/season/year and place of study, climate or weather conditions, soil type etc. Treatment details along with techniques and experimental design, replications, plot size etc. should be clearly indicated. Use of symbols for treatments may be avoided and an abbreviation should be fully explained at its first mention. Crop variety, methodology for application and common cultivation practices should be mentioned. Known methods may be just indicated giving reference but new techniques developed and followed should be described in detail. Methods can be divided into suitable sub-headings, typed in bold at first level and in italics at second level, if necessary.

Results and Discussion

Results may be reported and discussed together to avoid duplication. Do not mention and recite the data in the text as such given in the table. Instead interpret it suitably by indicating in terms of per cent, absolute change or any other derivations. Relate results to the objectives with suitable interpretation of the references given in the introduction. If results differ from the previous study, suitable interpretation and justification should be given. Repeated use of statements like 'our results are in agreement’ or ‘similar results were reported’ 'should be avoided. At the end of results and discussion, conclusion of the study should be given in 2-3 sentences along with suggestion for further study, if any. All statistical comparisons among treatments may be made at P=0.05 level of probability.

Acknowledgement

The authors may place on record the help and cooperation or any financial help received from any source, person or organization for this study. This should be very brief.

References

Only relevant and recent references of standard work should be quoted. Preference should be given to quote references of journals over proceedings or reports. In general, not more than 15 references should be quoted in full paper and 5 in short communication. However, in review article, emphasis should be given to quote more references with each valid statement/findings in the text. There is no need to give references for standard procedures of soil and plant analysis, and for routine statistical analysis in practice, only the methodology may be indicated. As a thumb rule, all the references quoted in the text must appear at the end of the article and vice-verse. It has been decided to use full name of the journal after the year 2011 onwards. Therefore, references should include names of all authors, year, full title of the article quoted, full name of the journal in italics (no abbreviations), volume number (in Bold), issue number (in brackets) and pages. For books, monographs, theses etc. full title in italics, publisher or university name, volume no., if any, and relevant page range or total no. of pages should be given. The list of references should be arranged alphabetically on author's names and chronologically per author. Author name should be started with surname and initial letter with capital letter. There is no need to separate author's initials by full stop but it should be given in capital letters without gap. Each author name should be separated by comma (,) and last author name by ‘and’. A few examples of correct citation of references for Indian Journal of Weed Science are given below:

Singh Samunder, Punia SS, Yadav A and Hooda VS. 2011. Evaluation of carfentrazone-ethyl + metsulfuron-methyl against broadleaf weeds of wheat. Indian Journal of Weed Science 43(1&2): 12-22.

Neeser C and Varshney Jay G. 2001. Purple nutsedge; biology and principles for management without herbicides, Indian Journal of Pulses Research 14(1): 10-19.

Naseema A, Praveena R and Salim AM. 2004. Ecofriendly management of water hyacinth with a mycoherbicide and cashew nut shell liquid. Pakistan Journal of Weed Science Research 10(1&2): 93-100.

Arya DR, Kapoor RD and Dhirajpant. 2008. Herbicide tolerant crops: a boon to Indian agriculture, pp 23-31. In: Biennial Conference on Weed Management in Modern Agriculture: Emerging Challenges and Opportunities. (Eds. Sharma RS, Sushilkumar, Mishra JS, Barman KK and Sondhia Shobha), 27-28 February 2008, Patna. Indian Society of Weed Science, Jabalpur.

Anonymous. 2006. Long-term herbicide trial in transplanted lowland rice-rice cropping system, pp 62-68. In: Annual Progress Report, AICRP on Weed Control, Tamil Nadu Agricultural University, Coimbatore.

DWSR. 2010. Annual Report, 2010-11, pp 35-37. Directorate of Weed Science Research, Jabalpur.

Gopal B and Sharma KP. 1981. Water hyacinth (Eichhornia crassipes) the most troublesome weeds of the world. Hindasia Publisher, New Delhi, 129 p.

Sushilkumar, Sondhia S and Vishwakarma K. 2003. Role of insects in suppression of problematic alligator weed (Altemanthera philoxeroides) and testing of herbicides for its integrated management. Final Report of ICAR Adhoc Project, 39 p.

For Web references: the full URL should be given and the date when the reference was last accessed. e.g. http://www.faostat.fao.org (accessed 21 May 2019)

Length

Paper TypeMaximum Length (including tables and figures)
Research Article6000 words
Research note4000 words
Review8000 words
Mini-Review5000 words

Units, abbreviations and nomenclature

For physical units, unit names and symbols, the SI system should be employed. Biological names should be given according to the latest international nomenclature. Upon its first use in the title, abstract and text, the common name of a weed should be followed by the scientific name (genus, species and authority) in parentheses. If no common name exists in English, the scientific name should be used only. At the first mention of an herbicide or other chemical substance, give its generic name only. Trade names should not be used. Biological and zoological names, gene designations and gene symbols should be italicized. Yield data should be reported in kg/ha or t/ha. All such letters such as viz., et al., in situ, ex situ, Rabi, Kharif, i.e., etc. should be italicized.

Tables and figures

Tables and figures should be concise and limited to the necessary minimum. We encourage the authors to set tables and figures at the appropriate places in the article but if it is not possible, the same may be given separately. The title should fully describe the contents of the table and explain any symbol or abbreviations used in it. The standard abbreviations of the units of different parameters should be indicated in parentheses. Vertical lines should not be given in the tables and horizontal lines should be used to separate parameters and end of the table.

Figures may be preferred in place of table. In no case the same data should be presented by both tables and figures. While presenting data through line graphs, vertical bars, cylinders, pie charts etc, the same should be preferred with black lines or bars having different clear symbols and shades. The graphs chosen with colours reproduce poorly and should not be given unless it became necessary.

Some useful tips

Avoid numerals and abbreviations at the beginning of a sentence. Don't use superscript for per hectare, ton or meter (kg ha-1 or t ha-1) instead use kg/ha or g/m2, t/ha, mg/g, ml/l etc. Prefer to mention yield data in t/ha only. If it becomes necessary, give yield in kg/ha but not in quintal. Don't use lakh, crores or arabs in text, instead give such figures in million. Only standard abbreviations should be used and invariably be explained at first mention. Avoid use of self-made abbreviations like iso., buta., rizo., etc. Don't use first letter capital for names of plant protection chemicals but it should be used for trade names. Use of treatment symbols like T1 T2 T3 etc. should be avoided. All weights and measurements must be in SI or metric units. Use % after double digit figures, not per cent, for example 10% not 10 per cent. In a series of range of measurement, mention the units only at the end, e.g. 3,4,5 kg/ha instead of 3 kg/ha, 4 kg/ha and 5 kg/ha. Nutrient doses as well as concentration in soil and plant should be given in elemental form only, i.e. P and K should not be given as P2O5 K2O. A variety may be mentioned within single quotes in italic such as 'Pusa Basmai', 'Kufri Sinduri' etc. Statistical data should be given in LSD (P=0.05) instead CD (P=0.05).

Authors are requested to see the recent issue of the journal to prepare the manuscript as per the journal's format.

Manuscript submission

Manuscripts must conform to the journal style (see the latest issue). Correct language is the responsibility of the author. After having received a contribution, there will be a review process, before the Chief Editor makes the definitive decision upon the acceptance for publication. Referee's comments along with editors comments will be communicated to authors as scanned copy/soft copy through email. After revision, author should send back the copy of revised manuscripts to the Chief Editor, ISWS by e-mail only.

Editorial Board reserves the right to suitably modify, accept or reject the MS in view on the reviewer's advice.

We encourage submission of paper only by electronically via E-mail as one complete word document file. When preparing your file, please use only Times New Roman font for text (title 16, all heads 14 and text of 12 point, double spacing with 1.5" margin all the sides) and Symbol font for Greek letters to avoid inadvertent character substitutions.

All manuscripts should be submitted Online (http://www.isws.org.in/login_IJWS.aspx). For authors unable to submit their manuscript online

To see sample copy to prepare the manuscript, please Log on: http://www.isws.org.in/IJWSn/Journal.aspx

Peer Review Policy

All published articles in Indian Journal of Weed Science (IJWS) are subjected to rigorous peer review processes based on initial editor screening and anonymized refereeing by two referees. The ultimate purpose of peer review is to sustain the originality and quality of research work and filtration of poor quality and plagiarized articles. Peer review assures research quality.

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

Peer Review Policy

The practice of peer review is to ensure that only good science is published. It is an objective process at the heart of good scholarly publishing and is carried out by all reputable scientific journals. Our reviewers therefore play a vital role in maintaining the high standards of the (Indian Journal of Weed Science) Journal of Management and Research and all manuscripts are peer reviewed following the procedure outlined below.

Initial manuscript evaluation

The Editors first evaluate all manuscripts. In some circumstances it is entirely feasible for an exceptional manuscript to be accepted at this stage. Those rejected at this stage are insufficiently original, have serious scientific flaws, have poor grammar or English language, or are outside the aims and scope of the journal. Those that meet the minimum criteria are passed on to experts for review.

Authors of manuscripts rejected at this stage will be informed within 2 weeks of receipt.

Type of Peer Review

The (Indian Journal of Weed Science) employs double blind review, where the reviewer remains anonymous to the authors throughout the process.

How the reviewer is selected

Reviewers are matched to the paper according to their expertise. Our reviewer database contains reviewer contact details together with their subject areas of interest, and this is constantly being updated.

Reviewer reports

Reviewers are asked to evaluate whether the manuscript:

  • Is original
  • Is methodologically sound
  • Follows appropriate ethical guidelines
  • Has results which are clearly presented and support the conclusions
  • Correctly references previous relevant work

Reviewers are not expected to correct or copyedit manuscripts. Language correction is not part of the peer review process. Reviewers are requested to refrain from giving their personal opinion in the "Reviewer blind comments to Author" section of their review on whether or not the paper should be published. Personal opinions can be expressed in the "Reviewer confidential comments to Editor" section.

How long does the peer review process take?

Typically the manuscript will be reviewed within 2-8 weeks. Should the reviewers' reports contradict one another or a report is unnecessarily delayed a further expert opinion will be sought. Revised manuscripts are usually returned to the Editors within 3 weeks and the Editors may request further advice from the reviewers at this time. The Editors may request more than one revision of a manuscript.

Final report

A final decision to accept or reject the manuscript will be sent to the author along with any recommendations made by the reviewers, and may include verbatim comments by the reviewers.
Chief Editor's Decision is final
Reviewers advise the Editors, who are responsible for the final decision to accept or reject the article.

Special Issues / Conference Proceedings

Special issues and/or conference proceedings may have different peer review procedures involving, for example, Guest Editors, conference organizers or scientific committees. Authors contributing to these projects may receive full details of the peer review process on request from the editorial office.

Becoming a Reviewer for the (Indian Journal of Weed Science)

If you are not currently a reviewer for the (Indian Journal of Weed Science) but would like to be considered as a reviewer for this Journal, please contact the editorial office by e-mail at (editorisws@gmail.com), and provide your contact details. If your request is approved and you are added to the online reviewer database you will receive a confirmatory email, asking you to add details on your field of expertise, in the format of subject classifications.

Editorial Board

Editorial office:

Office Manager, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Publisher Address:

Secretary, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Principal Scientist
Division of Crop Research
ICAR Research Complex for Eastern Region
Bihar Veterinary College, Patna - 800014 (Bihar)

Chief Editor J.S. Mishra 9494240904 jsmishra31@gmail.com

The University of Queensland
St Lucia QLD 4069, Australia

Associate Editor Bhagirath Singh Chauhan b.chauhan@uq.edu.au

Consultant,
ICRISAT,
International Crops Research Institute for Semi-Arid Tropics
Patancheru, Hyderabad

Associate Editor A.N. Rao 9440372165 adusumilli.narayanarao@gmail.com

Editors

Professor,
Department of Agronomy, CCSHAU,
Hisar-125 004 (Haryana)

Ashok Kumar Yadav 9416995523 aky444@gmail.com

Professor & Head,
Division of Agronomy
FoA, Main Campus,
Chatha, SKUAST-Jammu (J&K)

B.C. Sharma 9419152428 drbhagwati@gmail.com

Principal
Vanavarayar Institute of Agriculture
Affiliated to TNAU)
Manakkadavu, Pollachi-642103 (Tamil Nadu)

C. Chinnusamy 9443721575 chinnusamyc@gmail.com

Scientist,
ICAR - Directorate of Weed Research,
Jabalpur (Madhya Padesh)

Dibakar Ghosh 8989190213 dghoshagro@gmail.com

Principal Scientist
Department of Agronomy,
Assam Agricultural University
Jorhat - 785013 (Assam)

I.C. Barua 9435094326 iswar_barua@yahoo.co.in

Principal Scientist
PJTSAU, Hyderabad-30 (Telangana)

M. Madhavi 9491021999 molluru_m@yahoo.com

Assistant Agronomist
Directorate of Agriculture (Govt. of WB)
Kolkata 700001, West Bengal

Malay Kumar Bhowmick 9434239688 bhowmick_malay@rediffmail.com

Associate Professor
(Soil Science & Agrl. Chemistry)
Anbil Dharmalingam Agricultural College & Research Institute (TNAU),
Trichy (Tamil Nadu)

P. Janaki 9443936160 janakibalamurugan@rediffmail.com

Assistant Chemist (Residue),
Department of Agronomy,
Punjab Agricultural University
Ludhina-141 004 (Punjab)

Pervinder Kaur 9646105418 pervi_7@yahoo.co.in

Sr. Agronomist, Directorate of Extension Education
Punjab Agricultural University
Ludhiana – 141004 (Punjab)

Simerjeet Kaur 9814081108 simer@pau.edu

College of Horticulture,
Vellanikkara. Thrissur – 680 656, (Kerala)

T. Girija 9447004940 girijavijai@gmail.com

Principal Scientist,
Directorate of Maize Research,
Pusa Campus, New Delhi-110012

C.M. Parihar 9013172214 pariharcm@gmail.com

Indexing Indexing & Abstracting Services


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Volume- 41 | Issue-3&4 Supplymentary (Jul-Dec) | Year 2009

Allelochemicals in Parthenium in response to biological activity and the environment
D.K. Pandey
Review article | DOI: IJWS-2009-41-3&4 Supplymentary-1 | Volume: 41 Page No:111-123 |
Address & Email | Article preview | View PFD | Download

Abstract:

Parthenium (Parthenium hysterophorus L.), a member of Asteraceae, is an obnoxious national weed of wide ecological niches including waste land and agroecosystems. The weed has phenolics, flavonoids, alkaloids, pseudoguaianolides and oils, many of which have been implicated in allelopathy. The phenolics include caffeic acid, vanillic acid, ferulic acid, chlorogenic acid, p-coumaric acid and p-hydroxy benzoic acid. The plant and its parts owe various properties involving allelopathy, phytotoxicity, herbicidal activity, growth regulation / inhibition, including on nitrification and nitrifying bacteria. Among flavonoids are quercetagetin-3, 7-dimethyl ether, 6-hydroxy kempferol-3, 7-dimethyl ether, kaempferol 3-O-glucoside, quercetin 3-O-glucoside, kaempferol-3-O-glucoarabinoside, and lignan (+) syringaresinol. They confer antioxidant activities, scavenging effects on activated carcinogens and mutagens, action on cell cycle progression, altered gene expression, UV-B protection in plants, warding off microbial infections, and protection of plants from herbivores, etc. The alkaloids have been detected but yet to be identified. The pseudoguaianolides identified from the species include parthenin, anhydroparthenin, ambrosin, coronopillin, damsin, hymanin, 8-b-hydroxyparthenin, 2b-hydroxycoronopilin, tetraneurin-A, ambrosanolides, charminarone, 8-b-acetoxyhysterone C, deacetyltetraneurin A, hysterin, hysterone E, hysterone D, conchasin A, acetylated pseudoguaianolides, scopoletin (belongs to coumarin), and dihydroxyparthenin. They have diverse activities like cytotoxic, antitumor, antibacterial, antifungal, phytotoxic, antiprotozoan, active against human and animal parasites (including intermediate hosts), insecticidal, moluscicidal, vertebrate feeding deterrence and toxicity, allergic contact dermatitis, mitochondrial oxidative phosphorylation inhibition, allelopathic, anti-inflammatory, and antimalarial. The oils identified from the species include a-pinene, camphene, b-pinene, sabinene, b-myrcene, b-terpene, limolene, b-ocimene, ocimene, p-cymene, linalool, caryophyllene, humulene, terpinene-4-ol and many unidentified compounds. They have been shown to be antifungal, antibacterial, antimicrobial, virucidal, antiparasitical, insecticidal, medicinal, cytotoxic and many find use in cosmetics. Information on role of specific constituents in allelopathic interaction of the species in natural ecosystems still appears to be scarce. Bioherbicidal potential of most of the constituents has not been investigated. These are attractive areas with potential of facilitating development of newer herbicides or pesticides.

Email

daya-pandey@hotmail.com

Address

Physiology Section, Directorate of Weed Science Research, Maharajpur, Jabalpur (Madhya Pradesh)
Management of late emerging weeds in irrigated groundnut
P. Kanagam and C.R. Chinnamuthu
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-2 | Volume: 41 Page No:124-132 |
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Abstract:

Field experiments were conducted during kharif (June-July), 2002, and late rabi (December-January), 2003 on sandy loam soils of Coimbatore to manage the late emerging weeds in irrigated groundnut. In screening trial, herbicides, metolachlor and fluchloralin were tested at four different levels viz., 0.75, 1.00, 1.25 and 1.50 kg/ha. The experimental fields were dominated by Setaria verticillata in grasses, Cyperus rotundus in sedges and Trianthema portulacastrum in broad-leaved weeds. Higher levels of herbicide dose recorded more weed control efficiency, yield and yield attributes of groundnut irrespective of the herbicides without any adverse effect on the crop. Among the levels, 1.00 kg/ha produced similar results with that of 1.25 or 1.50 kg/ha. Sequential applications of metolachlor as pre emergence at sowing followed by one on 40 DAS preceded with earthing up reduced the weed density, dry matter accumulation and nutrient removal by weeds significantly and comparable with weed free check. Initial reduction on the load of Rhizobium gained its original strength at later stages of crop growth.

Email

crchinnamuthu@yahoo.com

Address

Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore (Tamil Nadu)
Integrated weed management in fenugreek
O.L. Sharma
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-3 | Volume: 41 Page No:133-135 |
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Abstract:

Field experiments were conducted during rabi season in four consecutive years (2003-04 to 2006-07) to study the effect of integrated weed management practices on seed yield of fenugreek (Trigonella foenum-graecum L.). Results revealed that two hand weedings at 20 and 40 days after sowing (DAS) recorded minimum dry weight of both monocot and dicot weeds with the highest weed control efficiency (63.0%). Among the herbicides, pre planting and incorporation of fluchloralin 0.75 kg/ha + one hand weeding at 30 DAS was most effective in reducing the dry weight of both monocot and dicot weeds at harvesting. It had positive impact on yield attributes resulted in to the highest seed yield (1660 kg/ha) with net monetary returns of Rs 16904/ha and maximum weed control efficiency (54.5%). Pre-emergence application of pendimethalin 0.75 kg/ha + one hand weeding at 30 DAS and two hand weedings at 20 and 40 DAS were at par to former with regard to seed yields

Email

sharma_ol@rediffmail.com

Address

Agricultural Research Station, Rajasthan Agricultural University, Bikaner (Rajasthan)
Derivation of grassy weed intensity maps in wheat using spatial data with GIS in the central districts of Punjab
Ramanjit Kaur, R.K. Mahey, J. Mukherjee1 and Anil Sood
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-4 | Volume: 41 Page No:136-141 |
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Abstract:

An experiment was conducted to generate weed intensity maps using spatial data with GIS and remote sensing in the central districts of Punjab, India. Remote sensing technologies are playing an increasingly important role in agricultural production. Because of their potential for high spatial and spectral resolution, satellite and aircraft images can contain detailed site specific information about conditions in agricultural fields. It can be used for monitoring crop growth, yield potential, soil conditions, weed intensity etc. For the commercial extension of site-specific herbicide application technology, rapid and cost effective methods for creating accurate weed maps are required. The objective of this research was to demonstrate the potential of optical airborne remote sensing in the detection of some specific weeds and their densities in wheat crop in the central districts of Punjab (India). The analysis of spectral and ground measurement was done to select wave bands (wavelength regions) suitable for distinguishing weed-infested and weed-free crop areas.

Email

ramaan180103@yahoo.com

Address

Department of Agronomy, Agricultural Meteorology, Punjab Agricultural University, Ludhiana (Punjab)
Effect of weed management and crop establishment methods on weed dynamics and productivity of rice
Jai Kumar, Anil Kumar and B.C. Sharma
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-5 | Volume: 41 Page No:142-147 |
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Abstract:

A field experiment was conducted on sandy loam soil at Research Farm of Sher-e-Kashmir University of Agricultural Sciences & Technology, Chatha, Jammu during the years 2006 and 2007 to study the effect of weed management and crop establishment methods on weed dynamics and grain yield of rice. The results revealed that among weed management methods, mechanical hoeing using conoweeder (at 15 and 30 Days after transplanting, (DAT) significantly reduced the total weed population and dry weight of weeds and recoded higher grain (4256 and 4393 kg/ha) and straw yields (5381 and 5677 kg/ha ) than weedy check , but was statistically at par with fenoxapropp- ethyl (0.06 kg/ha, 20 DAT) fb 1 HW at 30 DAT, followed by metsulfuron methyl fb chlorimuron ethyl (0.004 kg/ha, 20 DAT) fb 1 HW at 30 DAT, fenoxaprop-p-ethyl (0.06 kg/ha, 20 DAT) and metasulfuron methyl fb chlorimuron ethyl (0.004 kg/ha, 20 DAT). However, metsulfuron methyl fb chlorimuron ethyl (0.004 kg/ha) was found to be more effective against broad leaved weeds and very little to sedges, thus failed to control major grassy weeds during the experimentation. Among the establishment methods of rice, conventional and system of rice intensification (SRI) methods were at par with respect to effective tillers, panicle length, grains/panicle, 1000 grain weight, grain yield, straw yield and harvest index. Significantly highest and lowest grain yields were obtained in case of weed free (4662 and 4745 kg/ha) and weedy check (3075 and 3140 kg/ha) treatments, respectively during both the years

Email

anillau@gmail.com

Address

Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (Jammu and Kashmir)
Bioefficacy of pinoxaden against little seed canary grass in wheat and its residual effect on succeeding crops
S.S. Punia and Dharambir Yadav
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-6 | Volume: 41 Page No:148-153 |
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Abstract:

To study the bioefficacy and phytotoxicity of new herbicide pinoxaden against isoproturon resistant population of Phalaris minor in wheat and its residual effect on succeeding rice and sorghum crops, field experiments were conducted at Chaudhary Charan Singh Haryana Agricultural University, Hisar during winter season of 2005 and 2006 and at Barhi (Ambala) and Chanarthal (Kurukshetra) during rabi 2007-08 and 2008-09. Little seed canary grass (Phalaris minor Retz.), the dominant grassy weed was very effectively controlled by post emergence (35 DAS) application of pinoxaden at 45-50 g/ha. At Hisar, pinoxaden at 45 g/ha provided 98.7 and 100% control of P. minor during 2005 and 2006, respectively, which was at par with clodinafop at 60 g/ha and sulfosulfuron and better than the performance of fenoxaprop. Grain yield of wheat with use of pinoxaden at 45 g/ha was 4450 and 4650 kg/ha during first and second year of experimentation, which was significantly higher than its lower doses of 35 and 40 g/ha but statistically at par with its higher dose of 50g/ha and already recommended herbicides clodinafop-propargyl and sulfosulfuron. Post emergence use of pinoxaden at 50 g/ha was able to control clodinafop resistant population of P. minor at farmers fields in Barhi (Ambala) and Chanarthal ( Kurukshetra). Results of 13 and 20 on farm trials conducted during 2007-08 and 2008-09,respectively in various districts of state revealed that pinoxaden at 50 g/ha gave 10.6 and 9.6% higher grain yield over recommended clodinafop at 60 g/ha. No carry over effect of this herbicide at any of doses tested was observed on succeeding sorghum and rice crops grown in succession after wheat

Email

jagir@hau.ernet.in

Address

Department of Agronomy, CCS HAU, Hisar (Haryana)
Economic threshold levels of little seed canary grass in wheat in north Bihar
N.K. Sinha, D. Singh and D.K. Roy
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-7 | Volume: 41 Page No:154-156 |
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Abstract:

A field experiment was conducted under All India Coordinated Research Programme on Weed Control at Crop Research Centre of Rajendra Agricultural University, Bihar, Pusa, Samastipur during rabi season of 2004-05 and 2005-06 in calcareous sandy loam soil with an aim to evaluate the effect of different density of Phalaris minor on growth and yield of wheat. Higher density of Phalaris minor retrogressively affected plant height, spike length, crop biomass and grain yield of wheat. The level of reduction in wheat yield was 12 to 66% corresponding to an increase in density of Phalaris minor from 25 to 150/m2. The present data showed the need for adoption of suitable weed management practices in wheat field with the density of Phalaris minor at 25/m2 and above.

Email

nksinha.cazri@gmail.com

Address

Rajendra Agricultural University, Pusa, Samastipur (Bihar)
Impact of Sesbania brown manuring on weeds and performance of direct seeded rice
V.C. Dhyani, V. Pratap Singh, S.P. Singh, Abnish Kumar and Neeta Tripathi
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-8 | Volume: 41 Page No:157-159 |
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Abstract:

A field experiment with ten treatments in randomized block design was conducted at Pantnagar in the year 2005-06 and 2006-07 to evaluate effect of Sesbania brown manuring on rice weeds and its yield. Rice shoot dry weight was related to weed dry weight at 28 days of crop stage. There was not significant difference in all those treatment where pendimethalin was applied with respect to weed dry weight and rice shoot weight. Row seeding resulted in lesser weed dry weight and higher rice shoot dry weight, however, treatment difference was insignificant. Weed dry weight continued to increase up to 84 days stage and then it declined at harvest in the weedy plot. At 56 DAS and subsequent stages dry weight was less in all those treatments where hand weeding was done at 30 DAS than those treatments where it was not done.

Email

dhyanivipin1@rediffmail.com

Address

Govind Ballabh Pant University of Agriculture & Technology, Pantnagar (Uttarakhand)
Growth and productivity of direct seeded upland rainfed rice as influenced by integrated weed management
Shushama Majhi, R. Thakur, R.R. Upasani, M.K. Singh and S.K. Pal
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-9 | Volume: 41 Page No:160-162 |
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Abstract:

A field experiment was conducted during kharif seasons of 2007 and 2008 at the Birsa Agricultural University farm, Ranchi on sandy loam soil to study the effect of integrated weed management on growth and productivity of direct seeded upland rainfed rice. Results showed that Sesbania intercropped and incorporated at 4 weeks after sowing + pendimethalin 1kg/ha recorded higher leaf area index, crop growth rate, effective tillers (124/m2), maximum grains/panicle (77) and bolder 1000-grain (24.3 g). The treatment produced higher grain yield (2091 kg/ha) and grain production rate (66.0 kg/ha/day) of direct seeded upland rice in comparison to other integrated weed management treatments.

Email

upasani.ravikant@gmail.com

Address

Department of Agronomy, Birsa Agricultural University, Ranchi (Jharkhand)
Utilization of Parthenium and water hyacinth as a bio-nutrient source in rice crop
D.K. Roy, D. Singh, N.K. Sinha and D.N. Pandey
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-10 | Volume: 41 Page No:163-166 |
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Abstract:

A field experiment was carried out at Rajendra Agricultural University, Pusa, Samastipur, Bihar during kharif seasons from 2004 to 2006 to assess the weed utility as a bio-nutrient source in rice cultivation. The results revealed that among organic sources, the use of water hyacinth (2.5 t/ha) FYM (5 t/ha) recorded the maximum growth, yield attributes and grain and straw yields of rice which was closely followed by water hyacinth (2.5 t/ha) + vermicompost (1 t/ha), Parthenium (2.5 t/ha) + vermicompost (1 t/ha), Parthenium (2.5 t/ha) + FYM (5 t/ha) and water hyacinth (2.5 t/ha) + poultry manure (1 t/ha). The maximum net return (Rs 11148/ha) and benefit: cost ratio (1.61:1) were also recorded by water hyacinth (2.5 t/ha) + FYM (5 t/ha). The highest available N (185.67 kg/ha), available P (26.38 kg/ha) and exchangeable K (525.6 kg/ha) were recorded by water hyacinth (2.5 t/ha) + FYM (5 t/ha). Water hyacinth or Parthenium either alone or in combination with other organic sources had a better utility as a bio-nutrient source. Among the inorganic levels, application of 100%, recommonded dose of fertilizer (RDF) produced significantly higher grain and straw yields as compared to other nutrient levels. Application of full dose of recommended NPK recorded significantly higher net return (Rs 10974 /ha) over 50% RDF which was closely followed by 75% RDF. Full dose of recommended NPK application had significant and beneficial effect on rice grain yield and improved the soil NPK status. The interaction effects between organic sources and inorganic levels were found to be non-significant

Email


Address

Department of Agronomy, Rajendra Agricultural University, Pusa, Samastipur (Bihar) E-mail : dr_dhirendra_krroy@yahoo.com
Identification of critical stages of weed competition and its effect on banana
P. Prameela, Rema Menon and A. Suma
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-11 | Volume: 41 Page No:167-169 |
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Abstract:

An experiment was conducted to study the effect of the most critical stage of weed competition in banana. The treatments consisted of different weeding schedules as well as an unweeded control. It was found that early vegetative phase of growth of banana especially up to 3rd/6th months after planting (MAP) and bunch development stages are the critical stages of banana at which yield is affected. Cost benefit ratio indicated that frequent weeding, during first three MAP as well as during 6 to 9 MAP is less economic compared to other treatments

Email

prameelaagron66@yahoo.com

Address

Banana Research Station, Kannara, Kerala Agricultural University, Thrissur
Efficacy of diclosulam on weeds and yield of soybean
S.P. Singh, V. Pratap Singh, R.C. Nainwal, Neeta Tripathi and A. Kumar
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-12 | Volume: 41 Page No:170-173 |
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Abstract:

The experiment was conducted during kharif 2007 and 2008 to evaluate the bio-efficacy of diclosulam at different doses in soybean crop at G.B. Pant University of Agriculture & Technology, Pantnagar. Eight treatments comprising diclosulam (84 WDG) at 18, 22 and 26 g/ha, pendimethalin (30 EC) and fluchloralin (45 EC) 1000 g/ha, two hand weeding (30 and 45 DAS), weed free and weedy treatments were used in the experimental plots. Diclosulam at higher doses (22 and 26 g/ha) were found effective against grassy and broad leaf weeds at different evaluation timings as it recorded lower weed population followed by weed free, hand weeding and application of diclosulam 18 g/ha and rest of the herbicides. Diclosulam applied at 22 and 26 g/ha showed higher weed control efficiency as compared to other herbicidal treatments at all the stages of crop growth, due to broad spectrum weed control and hence higher value for all the characters of yield attributes and grain yield. Weedy plots recorded 57% lower grain yield as compared to weed-free treatments. Application of diclosulam at 22 and 26 g/ha produced maximum grain yield which was similar to yield found in weed free treatment during both the years

Email

singhsp1975@rediffmail.com

Address

Department of Agronomy, GBPUAT, Pantnagar U.S. Nagar (Uttarakhand)
Weed management in Kodo millet under rain-fed condition
Adikant Pradhan and H.L. Sonboir
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-13 | Volume: 41 Page No:174-178 |
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Abstract:

An experiment was conducted on Kodo millet during kharif seasons of 2006, 2007 and 2008 at S.G. College of Agriculture and Research Station, Jagdalpur in randomized block design with twelve treatments. Predominant weeds found in weedy check plots were Echinochloa colona, Digitaria sanguinalis Eleusine indica, Celosia argentea, Commelina benghalensis and Euphorbia geniculata. The maximum weed population of broad leaved (224, 420 and 436/m2) and narrow leaved (920, 862 and 963/m2) were found in weedy check in 2006, 2007 and 2008 while dry matter were 278, 267 and 270 and 517, 348 and 325g/m2 for broad and narrow leaved weeds, respectively. Pre-emergence spray of isoproturon 0.5 kg/ha + two inter-cultivations attained significantly higher plant height (60.28, 62.63 and 59.42 cm), number of tillers/plant (4.42, 3.57 and 4.27), number of racemes/plant (6.27, 6.23 and 6.00) and 1000 grain weight (6.30, 6.60 and 6.45g) in Kodo millet over other treatments in consecutive years

Email

adi_197753@rediffmail.com

Address

S.G. College of Agriculture and Research Station, Jagdalpur (Chhattisgarh)
Weed flora of garlic in Haryana
S.S. Punia, Dharambir Yadav and Baldev Kamboj
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-14 | Volume: 41 Page No:179-181 |
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Abstract:

Ecological survey of weeds associated with garlic crop in Karnal, Ambala, Yamuna Nagar and Kurukshetra districts in north-eastern zone and Bhiwani and Hisar in south-western zone of Haryana state was conducted during two consecutive years in rabi 2006 and 2007. Among 17 known species spotted in garlic fields, 4 were grassy, 12 broad leaf weeds and only one sedge was recorded. Cyperus rotundus. Anagallis arvensis, Chenopodium album, Melilotus indica, Coronopus didymus, Medicago denticulata and Spergula arvensis among broad leaf weeds and Phalaris minor, Poa annua and Polypogon monspliensis among grasses were the major weeds of garlic in all districts. In Karnal, Ambala and Hisar, Anagallis arvensis was the most dominant weed with a relative density (RD) of 18.1, 16.1 and 16.4%, respectively with 100% occurrence in all the three districts while in Kurukshetra, Poa annua dominated weed flora with 20.5% of total weed flora followed by P. minor, A. arvensis and C. album in Yamuna Nagar district. P. minor was the most dominant weed with RD of 19.6% where as in Bhiwani, Chenopodium murale was the most dominant weed of garlic. Trigonella polycerata a weed of light textured soils was found in loamy sand soils of Bhiwani district only.

Email

jagir@hau.ernet.in

Address

Department of Agronomy, CCS HAU Hisar (Haryana)
Weed management in chickpea under irrigated conditions of western Rajasthan
O.L. Sharma
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-15 | Volume: 41 Page No:182-184 |
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Abstract:

Field trials were conducted for 5 consecutive winter seasons during 2002-03 to 2006-07 to study the effect of weed management practices on seed yield of irrigated chickpea (Cicer arietinum L.). Results revealed two hand weedings at 20 and 40 DAS recorded lowest dry weight of both monocot and dicot weeds and higher weed control efficiency (61.5%). Among the herbicides, pre-planting and incorporation of fluchloralin at 0.75 kg/ha + 1 hand weeding at 30 DAS was most effective in reducing the dry weight of both monocot and dicot weeds at harvesting, ascertained highest seed yield (1530 kg/ha) over other treatments with net returns of Rs 16904/ha and maximum weed control efficiency (54.5 %). Seed yield recorded with this treatment was at par to pre-emergence pendimethalin at 0.75 kg/ha + 1 hand weeding 30 DAS treatment

Email

sharma_ol@rediffmail.com

Address

Agricultural Research Station, Rajasthan Agricultural University, Bikaner 334 006 (Rajasthan)
Occurrence of alien alligator weed in India with special reference to its infestation in some districts of Madhya Pradesh
Sushilkumar, Shobha Sondhia, Kamlesh Vishwakarma
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-16 | Volume: 41 Page No:185-187 |
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Abstract:

Alligator weed, Alternanthera philoxeroides (Martius) Grisebach of family Amaranthaceae, is a native of south America but has spread to 30 countries in the world. At present, the weed has spread to many states of India and has become a problematic weed in aquatic body, ditches, canals and vacant low land areas in residential colonies. Survey revealed the occurrence of alligator weed in Madhya Pradesh, Maharasthra, Assam, Meghalaya, Arunachal Pradesh, Bihar, Haryana, Himachal Pradesh, Karnataka, Kerala, Orissa, Tamil Nadu, Uttarakhand, Uttar Pradesh and West Bengal. The infestation of alligator weed varied pond-to-pond ranging from 0.0 to 91.40% in Jabalpur, Satna and Rewa cities of Madhya Pradesh. Out of 27 ponds surveyed in Jabalpur, alligator weed was not found in six ponds. In four ponds infestation ranged between 1 to 25% while 25 to 50% infestation occurred in 8 ponds. In 9 ponds, more than 50 per cent infestation was found. Out of four ponds in Rewa city of Madhya Pradesh, the weed was found in one pond infesting about 45% area of the pond. Weed infestation was severe in two out of three ponds in Satna. These figures clearly indicate the severity of the weed problem in Jabalpur in Particular and in India in general.

Email

sknrcws@gmail.com

Address

Directorate of Weed Science Research, Maharajpur, Adhartal, Jabalpur
Integrated weed management in finger millet under rain-fed region
Adikant Pradhan and V. Singh
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-17 | Volume: 41 Page No:188-192 |
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Abstract:

Weed infestation is serious problem in cultivation of finger millet under upland situation. Two to three flushes of weeds during vegetative phase are common during rains. An experiment was conducted on finger millet during kharif season of 2005, 2006 and 2007 at S.G. College of Agriculture and Research Station, Jagdalpur. The experiment was laid out in randomized block design with twelve treatments. Weed population and dry matter accumulation by weeds was significantly varied due to weed control treatments in three years of experimentation. The maximum weed population of 120, 416 and 432 for broad leaf weeds and 916, 858 and 959 for narrow leaf weeds were found in weedy check in 2005, 2006 and 2007, respectively, while dry matter  of 696, 663 and 662 g/m for broad leaf weeds and 1271, 1134 and 514 g/m for narrow leaf weeds was recorded. The application of pre-emergence spray of isoproturon 0.5 Kg/ha + two hand intercultivation (20 and 40 DAS) gave significantly minimum weed population and dry matter accumulation. Pre-emergence spray of isoproturon 0.5 kg/ha + two intercultivations (T8) produced maximum grain yield (1902, 1887 and 1880 kg/ha) after hand weeding

Email

adi_197753@rediffmail.com

Address

S.G. College of Agriculture and Research Station, Jagdalpur (Chhattisgarh)
Performance of different herbicides in onion as affected by method of application
A.C. Yadav, S.S.Punia, Suresh Tehlan and Avtar Singh
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-18 | Volume: 41 Page No:193-194 |
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Abstract:

An investigation on weed management studies in onion (Allium cepa) was carried out during rabi seasons of 2006-07 and 2007-08 at CCS Haryana Agricultural University, Hisar. Early postemergence application (10 DAT) of oxadiargyl at 100 g/ha, pre-emergence application of oxadiargyl at 120 g/ha, oxyfluorfen at 250 g/ha, trifluralin at 1000 g/ha and pendimethalin at 1000 g/ha applied through spray supplemented with one hand weeding at 45 days after transplanting (DAT) resulted in significant reduction in population of Chenopodium album, Coronopus didymus, Chenopodium murale and Melilotus indica and higher bulb yield. Bioefficacy of all herbicides applied by spray method was more as compared to sand mix broadcast application

Email

jagir@hau.ernet.in

Address

Department of vegetable crops, CCS HAU Hisar (Haryana)
Integrated weed management studies on sugarcane ratoon
Rohitashav Singh, Radhey Shyam and Sanjay Kumar
Full length articles | DOI: IJWS-2009-41-3&4 Supplymentary-19 | Volume: 41 Page No:195-196 |
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Abstract:

A field experiment was conducted during 2002-03 and 2003-04 to study the effect of integrated weed management in sugarcane ratoon. Echinochloa spp., Cyperus rotundus and Digitaria sanguinalis were the dominating weeds associated with the crop and constituted 17.17, 61.34 and 9.50% of total weed population, respectively. Three hoeings at 30, 60 and 90 days after harvesting (DAH) produced maximum cane yield with the minimum weed dry matter among all treatments, which were at par to pre-emergence application of atrazine at 2.0 or 1.5 kg/ha, supplemented with hoeings at 60 and 90 DAH. Pre-emergence application of atrazine 2.0 kg/ha did not prove efficient to control the weeds.

Email

rohitashsingh_agro@india.com

Address

G.B. Pant University of Agriculture & Technology Pantnagar, U.S. Nagar (Uttarakhand)
Bioefficacy of pyroxsulam for weed control in wheat
V. Prapta Singh, V.C. Dhayani, S.P. Singh, Abnish Kumar, M.K. Singh and Neeta Tripathi
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-20 | Volume: 41 Page No:197-200 |
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Abstract:

Fifteen treatments with different doses and concentrations of pyroxsulam (12, 15, 18 and 30 g/ha of 3.0% and 3.6% OD both) along with 2,4-D ethyl ester 190 g/ha and aminopyralid 7.5 g/ha were taken in the experimental plot. Treatments having sulfosulfuron 25 g/ha, clodinafop 60 g/ha and isoproturon 1000 g/ha, weed free and weedy plot were also included as standard check. Application of pyroxsulam at 12 and 15 g, recorded significantly lower weed density of Phalaris minor at their lower concentration (3.0% OD) as compared to their higher concentration (3.6% O.D.). However, pyroxsulam at their higher doses (18 and 30 g) recorded similar density of Phalaris minor at both the concentrations at 30 days after herbicide application

Email

vpratapsingh@rediffmail.com

Address

Department of Agronomy, G.B. Pant university of Agriculture and Technology, Pantnagar (Uttarakhand)
Effect of fertilizer and manure on weed incidence, depletion of nutrients by weeds and yield of soybean
Ashok Kumar Lodha, Rishikash Thakur, Shahina Tabasshum and Smita Singh
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-21 | Volume: 41 Page No:201-203 |
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Abstract:

A field experiment was conducted during rainy season of 2008 to study the effect of fertilizer and manure on weed incidence and depletion of nutrients by weeds in soybean. The relative density (RD) of broad leaved weeds were found dominant (33.63%) among all other weeds. Commelina communis was 14.68%, Echinochloa colona 11.97%, Cyperus rotundus 10.14%, Cynodon dactylon 6.70% and other weeds 22.86%. Among the different fertility levels, 100% NPK (20:80:20) + 15 t FYM/ha gave significantly lowest weed biomass, highest WCE (61.51%), zero percent weed index, significantly highest grain yield (8.13 q/ha), highest NPKS nutrient contents in weeds and lowest depletion of NPKS nutrient by weeds

Email

sapnapuat@gmail.com

Address

Dept. of Soil Science and Agriculture Chemistry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (Madhya Pradesh)
Effect of post emergence herbicides on yield and economics of kharif soybean
H.P. Khedkar, B.D. Patel and R.B. Patel
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-22 | Volume: 41 Page No:204-206 |
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Abstract:

A field experiment was carried out at Agronomy Farm, B.A. College of Agriculture, Anand Agricultural University, Anand (Gujarat) during kharif season of the year 2008. The experiment was laid out in randomized block design (RBD) with four replications and twelve weed control treatments viz., imazethapyr 75 g/ha (T1), imazethapyr 75 g/ha fb chlorimuron ethyl 8 g/ha (T2), imazethapyar 75 g/ha fb hand weeding 30 DAS (T3), fenoxaprop-p-ethyl 75 g/ha (T4), fenoxaprop-p-ethyl 75 g/ha fb chlorimuron ethyl 8 g/ha (T5), fenoxaprop-p-ethyl 75 g/ha fb hand weeding at 30 DAS (T6), quizalofop ethyl 75 g/ha (T7), quizalofop ethyl 75 g/ha fb chlorimuron ethyl 8 g/ha (T8), quizalofop ethyl 75 g/ha fb hand weeding at 30 DAS (T9), hand weeding at 20 and 40 DAS (T10) inter fb hand weeding at 20 and 40 DAS (T11) and weedy check (T12), with the objectives to compare different weed management practices and effect on growth and yield of soybean. Application of post emergence herbicide in conjunction with hand weeding was found effective for control of monocot, dicot and sedges at harvest in kharif soybean. Treatment T11, registered higher seed (2251 kg/ha), straw yield (3756 kg/ha) and harvest index (34.72%) followed by treatments T10, T9 (quizalofop ethyl 75 g/ha as PoE fb hand weeding at 30 DAS) and T6 (fenoxaprop-p-ethyl 75 g/ha as PoE fb hand weeding at 30 DAS), respectively. Moreover, cost benefit ratio was also recorded higher (1:3.67) under the treatment T , followed by treatment T10, T3, and T6. 

Email

bdpatel62@yahoo.com

Address

DWSR-Anand Centre, B.A. College of Agriculture, Anand Agricultural University, Anand (Gujarat)
Comparative performance of plant extracts, biocontrol agents and fungicides on the diseases of sunflower
R. Poorniammal and C. Sarathambal
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-23 | Volume: 41 Page No:207-209 |
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Abstract:

A field study was conducted to find out comparative efficacy of plant extracts, biocontrol agents and chemical fungicides on leaf spot and rust. It was found that fungicide propiconazole 0.1% spray recorded the highest reduction in disease incidence of leaf spot (83.3%) and rust (79.5%) which was followed by neem oil spray 1% (62.8% and 64.2%). However, the biocontrol agents Pseudomonas fluorescens (42.31% and 44.43%) and pink pigmented facultative methylotroph (PPFM) (39.95 and 43.38%) performed slightly inferior when compared with neem oil and garlic extract. Lowest reduction in the disease incidence of leaf spot (18.2%) and rust (16.23%) were observed in Prosopis juliflora 10% extract. Similarly, when yield was estimated, highest yield was recorded in propiconazole 0.1% spray (1727 kg/ha) followed by neem oil spray 1% (1647kg/ha).

Email

poornimicrobiology@yahoo.co.in

Address

Department of Agricultural Microbiology, TNAU, Coimbatore (Tamil Nadu)
Influence of seeding methods and weed management practices on direct seeded rice
S.P. Sangeetha, A. Balakrishnan, R. Sathya Priya and J. Maheswari
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-24 | Volume: 41 Page No:210-212 |
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Abstract:

A field experiment was conducted to study the influence of seeding methods and weed management practices on direct seeded rice. Study revealed that drum seeding + green manure method of seeding establishment and pre-emergence application of pretilachlor + safener at the rate of 0.45 kg/ha at 5 days after sowing (DAS) + hand weeding (HW) at 45 DAS registered improved crop growth parameters, yield attributes and grain yield of crop with lower weed count and weed dry matter.

Email

sangeetha.agr@gmail.com

Address

Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore (Tamil Nadu)
Efficacy of post-emergence herbicides in soybean under various fertility levels and their residual effects on succeeding crops
P.S. Deore, V.D. Khanpara, S.C. Wadile, D.A. Sonawane and S.S. Chitodkar
Short communications | DOI: IJWS-2009-41-3&4 Supplymentary-25 | Volume: 41 Page No:213-217 |
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Abstract:

A field experiment was conducted during the rainy season of 2006 at Instructional farm, College of Agriculture, Junagadh Agriculture University, Junagadh on clayey soil to study the efficacy of post-emergence herbicides on soybean under different fertility levels and their residual effects on succeeding crops of sorghum, bajra, barley and ragi. Among the weed management practices, the weed free treatment produced significantly higher grain yield (2336 kg/ha) and stover yield (2772 kg/ha). The next best treatment to control the weeds at initial growth stage was pendimethalin 0.5 kg/ha pre-em + HW + IC at 30 DAS. The treatment imazethapyr 75 g/ha post-em. at 25 DAS +HW +IC 45 DAS ) recorded the lowest no. of weeds/m2. Among the fertilizer levels the treatments F3 40:80:40 and F2 30:60:30 N, P2O5, K2O kg/ha recorded equally the higher grains (2006 kg/ha and 1973 kg/ha) and stover yield (2321 kg/ha and 2228 kg/ha, respectively).The crops like sorghum, bajra, barley and ragi can be sown safely as succeeding crops after harvesting the kharif soybean. In soybean the effective weed management up to 60 DAS and fertilizing the crop with 30:60:60 N, P2O5, K2O kg/ha gave higher grains and stover yield and had no residual effect on succeeding crops

Email

scwadile72@gmail.com

Address

College of Agriculture, Dhule (Maharasthra)

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