摘要
研究表明:大豆植株中部籽粒较大与中部叶面积较大,叶片寿命长,光合势高密切有关。大豆鼓粒期各节叶片的比叶重与相应各节粒重高度相关,可以顶小叶比叶重作为源强指标。去顶部4节叶片,显著影响顶部4节籽粒总重,粒数对粒重影响大,库是限制产量的重要因素。
Results of the study on leaf area and yield, regulation of population growth and yield, specific leaf weight and yield, regulation of source-sink and yield in field grown soybean indicate that:-Larger seed size at the middle part of the soybean plant is related closely to the fact that the leaves growing at the middle part of the plant have the longest life duration, the largest leaf area, and the highest photosynthetic potential (photosynthetic area × photosynthetic period).There is a significant positive correlation between the specific leaf weight and seed weight at the same nodal position of main stem. The specific leaf weight of terminal leaflet can be regarded as source strength index.Total seed weight at upper four nodes will be affected obviously by defoliation at upper four nodes. Seed weight is affected largely by seed number. Sink is an important factor on limiting yield.
出处
《大豆科学》
CAS
CSCD
北大核心
1989年第2期129-136,共8页
Soybean Science
