Department of Agronomy, Allahabad Agricultural Institute-Deemed University Allahabad-211 007, (Uttar Pradesh), India.
1Division of Agronomy, SKUAST of Kashmir, Srinagar, Post Box No. 955, GPO Srinagar-190 001, (J & K), India.
A field experiment was conducted at Crop Research Farm, Department of Agronomy A. A. I (DU), Allahabad during 2002 on winter maize to assess the relationship amongst weed parameters, yield attributes and yield under the influence of different weed management practices. Grain yield of winter maize showed a significant positive correlation with WCE, number of cobs and cob length. On the contrary, these parameters were negatively correlated with the population and biomass of weeds at 60 DAS. A unit increase in weed population and weed biomass/m2 estimated reduction in grain yield by 0.79 and 1.418 q/ha, respectively. Similarly, the increase in the grain yield due to a unit increase in WCE (%) was estimated at 0.575 q/ha.
