Abstract

Phenological behaviour of Spergula arvensis L., Fumaria parviflora Lam., Melilotus indica L., Phalaris minor Retz., and Convolvulus arvensis L., indicated that S. arvensis and C. arvensis started germinating 8-10 d.a.s. of uheet, uhereas P. minor, F. parviflora and M. indica germinated after irrigating wheat 21 d.a.s. at its crown root initiation stage. Marked differences were observed also in the maturity stage of the weeds. F. parviflora, P. minor and S. arvensis matured earlier to wheat and shed their seeds to contaminate the soil, whereas M. indica and C. arvensis matured alongwith the crop, and their seeds contaminated the wheat grain.

Keywords: Weed phenology, Weed control, Wheat.