2025, Vol. 8, Special Issue 2

author(s)
Girish KS, RB Negalur, SS Anjum and MB Patil

abstract
A field experiment was conducted at Northern Dry Zone of Karnataka (Zone 3) at College of Agriculture, Vijayapur, Karnataka, India during rabi (October-December, 2021) to study the effect of pre and post-emergence herbicides on growth and yield of chickpea. The experiment was laid out in RCBD with three replications and 11 treatments involving two pre-emergence herbicides (Pendimethalin, Pendimethalin+Imazethapyr) and five post-emergence herbicides (Imazethapyr+Imazamox, Propaquizafop+Imazethapyr, Imazethapyr, Quizalofop ethyl and Aciflor+Clodinafop) and one treatment with intercultivation operation at 20 and 40 DAS. Among the herbicidal treatments, application of Pendimethalin 38.7% CS @800 g a.i./ha as PE fb Propaquizafop 2.5%+Imazethapyr 3.75% W/W ME (RM) @ (125 g a.i. ha^-1) as PoE at 25 DAS recorded higher results with better growth and yield. However, application of Imazethapyr 35%+Imazamox 35% WG (RM) @70 g a.i./ha (Odyssey) as PoE at 25 DAS shows phytotoxicity and severe injury to the crop and causes stand loss. The injury was in the rate of 7.00 to 7.33 out of 10 at 7 days after application and was reduced to the range of 5.33 to 6.00 at 14 days after application. There is a drastic and irregular changes in plant height, number of branches, plant population and plant dry matter accumulation and also recorded lowest grain yield (923 kg/ha) and haulm yield (2098 kg/ha) and total biological yield (3021 kg/ha). The results were almost near to weedy check.