摘要
利用两个大豆品系在不同群体密度下比较生殖生长期冠层结构。结果表明 ,不同密度下大豆的植株形状、群体生育和产量均发生变化 ,密度对干物质积累、LAI动态、叶片空间形态、株高 /茎粗及产量形成的影响均表现为明显的基因型间差异 ,品系 980 8较品系 9395有更高、更稳定的干物质积累 ,株高 /茎粗变化不大 ,高密度群体下能维持较高的LAI ,叶片不早衰 ,叶片自身的调位能力强 ,叶倾角大 ,且叶片分布均匀 ,有利于高密度下形成较高群体产量。图 4 ,表 4 ,参 12。
The experiment results of comparing two lines' canopy structures of soybean under different population densities, showed that plant stature, population development and yield varied with different densities The differences influenced by planting rate between both genetic types including dry matter accumulation, LAI dynamics, foliar state, ratio between plant height and stem diameter and yield were apparent Comparing with line 9395, the dry matter accumulation of line 9808 was higher and more stable, the variation of plant height/stem diameter was less The line 9808 maintained a greater LAI for a longer duration with less senesce and had stronger capability to regulate foliar position, thus leaf angle was larger and leaf was more fairly well distributed than the line 9395, which benefit for yield formation
出处
《农业系统科学与综合研究》
CSCD
北大核心
2003年第2期124-128,共5页
System Sciemces and Comprehensive Studies In Agriculture
基金
黑龙江省杰出青年科学基金项目 (JT0 1-0 2 )
