摘要
研究表明:大豆各种类型品种之间收获指数有明显差异,不同品种的光合产物积累与分配以及干物质运转能力各不相同。大豆收获指数与品种的熟期类型、株高、主茎节数、成热株重等性状间存在极显著或显著的负相关,早熟、半矮秆、节数较少、成熟株重较低的类型品种收获指数较高,晚熟、高秆、多节、成熟株重较高的则比较低,呈规律性变化。收获指数与子粒产量之间总体上呈正相关,但非直线关系,而是近似常态分布关系,高产类型品种其收获指数多出现在0.401～0.450、0.451～0.500及0.501～0.550三个级差范围,产量的最高点是在0.451～0.500指数级差组之内。
In this experiment, the harvest index of soybean was measured by using 316 varieties at home and abroad. The relationship between the harvest index and main agronomy characters was analysed. The results showed that the difference of harvest index among various kinds of variety was noticeable. Correlations were remarkably negative between harvest index and whole growing period, plant hight, number of nodes on main stem' and ripe plant weight. The harvest indexes of indeterminate, semidetermi-nate, purple flower and pointed leaf varieties were slightly higher than other kinds. Relationship between the harvest index and yield was normal distribution not linear regression. The harvest index of highest yield was in the range of 0.451-0.500.
出处
《吉林农业大学学报》
CAS
CSCD
1989年第2期8-12,22,共6页
Journal of Jilin Agricultural University
关键词
大豆
收获指数
育种
营养
生殖生长
harvest index, nutritive-reproductive growth, photosynthetic product, ripe plant weight.
