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Annals of Plant Protection Sciences
Year : 2005, Volume : 13, Issue : 2
First page : ( 454) Last page : ( 457)
Print ISSN : 0971-3573.

Losses due to weeds and response to pendimethalin and fluchloralin in varieties of summer sown Vigna radiata

Yadav V.K., Singh S.P.

Department of Agronomy, N.D. University of Agriculture & Technology, Kumarganj, Faizabad - 224 229, India


In a field trial, four weed control treatments (weedy check, weed free, pendimethalin @ 1 kg a.i./ha pre-emergence + weed free and fluchloralin @ 1.0 kg a.i./ha pre-plant incorporation + weed free) were tried in 12 varieties of mung bean (Vigna radiata). Under non-herbicide treated weed free conditions, variety, Pant Mung-2 gave highest grain yield of 11.10 q/ha followed by Jagriti (8.14 q/ha). The varieties differed in their competing ability with weeds and tolerance to fluchloralin and pendimethalin. The reduction in grain yield/ha in weedy check plots as compared to hand weeded weed free control was maximum in HUM-3 (76.7%) and minimum in PDM-11 (50.5%) with an overall average reduction of 66.8%. Grain yield/ha was reduced by fluchloralin treatment in all the varieties except PDM-139 and NDM-1 that gave slightly higher yields. However, pendimethalin application caused reduction in grain yield only in four varieties; others were either not much affected or gave higher yields as compared to weed free treatment.


Key words

Fluchloralin, Pendimethalin, Vigna radiata, Weeds.


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