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Correlation and regression studies of winter maize and weed interactions.

机译:冬季玉米与杂草相互作用的相关性和回归研究。

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摘要

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.
机译:2002年期间,在阿拉哈巴德省农学系A. A. I(DU)的作物研究农场对冬季玉米进行了田间试验,以评估在不同杂草管理实践的影响下杂草参数,产量属性和产量之间的关系。冬玉米的籽粒产量与WCE,穗轴数量和穗轴长度呈显着正相关。相反,在60 DAS时,这些参数与杂草的种群和生物量呈负相关。杂草种群和杂草生物量/ m2的单位增加,估计谷物产量分别降低了0.79和1.418 q / ha。同样,由于WCE(%)单位增加而导致的谷物单产增加估计为0.575 q / ha。

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