| Volume |
Issue |
Year |
Page No |
Type |
PDF Download |
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37
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2005
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36
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39
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Full length articles
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Effect of Puddling on Distribution ofRabi Weed Seeds and their Emergence
J. S. Mishra, Roby Mathew and N. T. Yaduraju
DOI :
IJWS-2005-37-1&2-11
Email :
Address :
National Research Centre for Weed Science, Maharajpur, Jabalpur-482 004 (M. P.)
Keywords
Abstract
Puddling of soil significantly influenced the vertical distribution of weed seeds. Weed seeds were observed upto 20 cm depth but their intensity varied. While Chenopodium alhum was distributed mostly upto 5 cm depth, Medicago hispida and Phalaris minor were found in large numbers upto higher depth (10 cm). Avena ludoviciana was mostly abundant from surface to shallow depth (2.5 cm). Maximum emergence of P minor at 2 cm and A. ludoviciana at 4 cm depth was recorded upto two weeks. Red light increased the germination of P minor but reduced the germination of M. hispida. Lowest germination of Asphodelus tenuijblius and P minor was observed in dark but there was no effect of darkness on germination of M. hispida. Maximum germination of A. lucloviciano was recorded in green light.