Influence of herbicides on yield and yield parameters of groundnut in rice-groundnut system under coastal zone of Karnataka

Abstract

A field experiment was conducted at Agricultural Research Station, Kumta, Uttar Kannada district of University of Agricultural Sciences, Dharwad to know the impact of herbicide on yield and yield parameters of groundnut in rice-fallow groundnut system. A field experiment was layout in a RCBD design having nine treatments with three replications. The results concluded that, significantly higher number of pods per plant (14.4), pod weight per plant (12.4 g), sound matured kernel (79.2%) and test weight (33.1 g) and kernel yield (1294 kg ha -1 ) was observed in application of pendimethalin 30% E.C. @ 1.5 kg ha -1 fb one hand weeding at 25 DAS and however on par with T 6 : pendimethalin 30% E.C. @ 1.5 kg ha -1 fb quizalofop-p-ethyl 5% E.C. @ 50 g ha -1 20-30 DAS . Whereas, significantly lower number of pods per plant (8.1) and pod weight per plant (8.1 g), sound matured kernel (74.8%), test weight (28.5 g) and kernel yield (777 kg ha -1 ) was observed in un-weeded plot.