群体密度对寒地青贮玉米产量性状的影响

Influence of Different Planting Density on The Yield Properties of Silage Maize in Cold Region

通过对青贮玉米群体密度与产量性状的关系研究表明:密度是影响青贮玉米产量的关键因素。不同密度处理间青贮玉米的百粒重、产量差异极显著,秃尖长、穗长、行粒数等性状不同处理间存在显著差异。而不同密度处理间青贮玉米的株高、穗行数差异不显著。高产密度不宜超过9.0万株/hm2。

Through studying the relationship between density and yield properties of silage maize, the result showed that density was the key factor which influence the yield and the weight per hundred seeds of silage maize. The influences on properties of silage maize for example bare length of comcob etc. Next was the weight of a hundred seeds. But it had no significant influence to the plant height, the grain number of one row and length of comcob of silage maize. High production density of silage maize should be no more than 90 000plants/hm^2.