2024, Vol. 7, Special Issue 7

author(s)
Kachhadiya SP, Vora JR and Gajera JB

abstract
In the winter season of 2019-20, a field study titled Evaluation of the efficacy and development of pre and post-emergence herbicides in the control of weeds in coriander (Coriandrum sativum L.) cultivation' was conducted at the Instructional Farm, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh. The experiment comprising 12 treatments was laid out in randomized block design with 3 replications. The results revealed that next to the weed free treatment, significantly higher values of growth parameters viz., plant height, number of branches per plant and days to 50% flowering and yield and yield attributes viz., number of umbels per plant, number of umbellates per umbel, number of seeds per umbellate, test weight, seed yield, straw yield, biological yield and harvest index were recorded with pendimethalin 900 g/ha as PE fb quizalofop ethyl 70 g/ha as PoE at 30 DAS and it was at par with Paraquat 500 g/ha at 7 DAS as EPoE fb HW at 30 DAS. Besides, weed free condition,Pendimethalin 900 g/ha as PE fb quizalofop ethyl 70 g/ha as PoE at 30 DAS were found more effective in reducing the weed population up to harvest and resulted in less weed count dry weight of weeds, lower weed index and higher weed control efficiency. Economical evaluation showed that the highest net return of ₹ 26801/ha and BCR of 2.02 was obtained with the treatment Pendimethalin 900 g/ha as PE fb quizalofop ethyl 70 g/ha as PoE at 30 DAS followed by the treatment Paraquat 500 g/ha at 7 DAS as EPoE fb HW at 30 DAS.