Weeds of Himalaya in winter crops

Abstract

The present communication is an account of weed flora in winter crops of Western Himalaya (Kumaon and Garhwal), ranging from outer foot-hills to sub-alpihe regions (altitude 700 m to 3,150 m above MSL). Out of 39 species, 34 species of 30 genera of 15 families belong to dicots and 5 species of 4 genera belong to 1 monocot family. Asteraceae (7), Brassicaceae (5), Poaceae (5), Leguminosae (4) and Papaveraceae (3) contribute about 61,54% to the total weed species. The associations of weeds in different crops have been emphasised with respect to phenology, habit and occurrence. The increasing intensity of the weeds can be prevented by uprooting them before the crop matures.