Phenological studies of rice weeds in Bilaspur district, (Chhattisgarh)
Madhu Yamini Soni1, Raghunandan Prasad Sharma2 and Indu Soni3
1Atal Bihari Vajpayee Vishwavidyalaya Bilaspur - 495009 (India) 2Department of Botany Govt. Agrasen College Bilha, Bilaspur - 495224 (India) 3Department of Botany B.P.L. P. G. Govt. College Arang - 493441 (India)
ABSTRACT
Phenology is the study of periodic events in biological life cycles and study of changes in the timing of seasonal events such as germination, vegetative growth, flowering, fruiting, dormancy, migration, and death rate. phenological studies of weed flora is done in pot culture and in selected field area of Bilaspur district (C.G.). The phonological studies of rice weed flora have been done in the month of July to October 2023. Weeds are unwanted plant for anyagriculture land. There are 30 weeds species are germinate in field area and 21 weeds species are germinate in pot culture. Those weeds grown in field condition came to 60% flowering earlier than pot culture weeds. Echinochola crus-galli has higher number of seeds in both pot culture and field area with 630-870 seeds respectively. Mostly weeds are germinated in July to September, their vegetative growth period is August to September, their reproduction period is October to November and they produce seed for germination is November to December.