摘要
1986—1987年在田间条件下,研究早熟7号和早熟14号大豆植株的光合性能。结果表明:叶片的最高光合速率和平均光合速率,基部叶片>中部叶片>顶部叶片;叶面积、功能期和光合势,均为中上部叶片>顶部叶片>基部叶片。夏大豆植株叶片的平均光合速率,以苗期及开花期较高,随后呈下降趋势,鼓粒后期下降尤其明显。单株光合速率及叶面积随着生育进程呈单峰曲线变化,以结荚期最高。
The photosynthetic performances of plants in summer-sowing soybean(Glycine max(L.)Merll)of two varieties(Early matruing No.7 and early maturing No.14)were studied under field conditions in 1986-1987.The results indicated that the maximum value and average value of net photosynthetic rate were bottom leaves>middle leaves>upper leaves on the main stem of soybean plant.The value of leaf area,functional period of photosynthesis and leaf area duration were middle and upper leaves>top leaves>bottom leaves.The average value of photosynthetic rate of leaves on soybean plant was high in seedling and flowering stage,and then decreased,especially in end of seed-filling stage.The photosynthetic rate per plant and the leaf area,showed single peak curves during plant ontogeny,especially reached maximal value at podsetting stage.
出处
《中国油料》
CSCD
北大核心
1991年第1期33-37,共5页
关键词
大豆
植株
光合性能
Soybean
Net photosynthetic rate
Leaf area
Leaf area duration
