BIO-EFFICACY AND PHYTOTOXICITY EFFECT OF DIFFERENT WEEDICIDES IN BT COTTON

A.S. JADHAV¹*, G.P. BHOSLE^2
1Cotton Research Scheme, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 431402, M.S., India
²Cotton Research Scheme, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 431402, M.S., India
* Corresponding Author : asjadhav31@rediffmail.com

Received : 02-07-2018     Accepted : 12-07-2018     Published : 15-07-2018
Volume : 10     Issue : 13       Pages : 6631 - 6632
Int J Agr Sci 10.13 (2018):6631-6632

Keywords : Bt cotton, weedicide, weed control, seed cotton yield
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Cotton Research Scheme, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 431402, M.S., India
Author Contribution : All author equally contributed

Field trial was conducted to find out the effect of different doses of weedicide on Bt cotton at Cotton Research Scheme Farm, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, M.S. The result indicated that, weedicide Pendimethalin PE @ 1000 g/ha fb HW/MW at 20, 50 DAS and Pyrithiobac sodium @ 62.5 g/ha + Quizalafop ethyl @ 50 g/ha at 20 DAS fb directed spray of Glyphosate at 60 DAS @ 600 g/ha found most effective in Bt cotton. Based on net monetary return and seed cotton yield the weed control treatment, Pendimethalin PE @ 1000 g/ha fb directed spray of Glyphosate @ 2000 g/ha at 50 DAS was found most effective. B:C ratio was highest with the Pyrithiobac sodium @ 62.5 g/ha + Quizalafop ethyl @ 50 g/ha at 20 DAS fb directed spray of Paraquat at 60 DAS @ 600 g/ha.

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