摘要
通过对内蒙古海拉尔地区春油菜结角层的研究,分析了结角层中角果组成,分布及其性状的变化,结果表明:1、春油菜结角层较薄,PAI较小,提高产量主要是控制下位分枝的生长,改善结角层内部的光照条件,形成一个高光效的结角层结构。群体直立不倒,各枝序排列有序。2、提高结角层生产力的关键是在结角层的纵向上提高千粒重、横向上增加角粒数。3、各枝序的生产力与它们的结角起止高度密切相关。
The pods composition, distribution and characters change within pods canopy were observed in Hailaer region of Inner Mongolia. The results were as follows: The pods canopy of spring rape was thin and PAI was small.If lower branches on plants had controlled over, the light condition upper pods layer would be better and the pods yield can increase. It is requirement too that plants population was uniform and erect. An increase in 100C-seed weight in vertical direction and seed number per pod in herisonal direction was an important factor for increase productivity of pod canopy.The productivity of branches and the heights of their starting and terminating pods on branches showed high positive correlation.
出处
《中国油料》
CSCD
北大核心
1990年第3期45-50,共6页
