摘要
为了进一步提高玉米产量，以克单10号为试材，在3种植密度下，研究了种植密度时克单10号的产量和生理指标的影响。结果表明：随着种植密度增加，玉米个体产量、主要产量相关性状、单株叶面积及单株地上部千物质积累量均呈现降低的趋势，群体地上部干物质积累量和群体叶面积指数则呈现升高趋势。其中种植密度为4．5万～6．0万株·hm^-2时，产量最高。
In order to further improve maize yield,taking maize Kedan 10 as material,the effects of three densi- ties on yield and physiological parameters of Kedan 10 were studied respectively. The results showed that the grain yield per plant, main yield characters, leaf area of plant and above-ground dry material accumulation per plant all decreased with the increasing of plant density and above-ground dry material accumulation and the leaf area index（LAI）of the population increased. The highest yield could be achieve to 450~600 thousand plants per hectare.
出处
《黑龙江农业科学》
2014年第4期30-33,共4页
Heilongjiang Agricultural Sciences
关键词
种植密度
克单10号
产量
生理指标
planting density
Kedan 10
yield
physiological parameters
