摘要
本文对三个不同生态类型棉花品种（品系）晋棉１０号、５５６、运５７０的适宜群体结构、光合特性及其与产量的关系进行了研究。结果表明：晋棉１０号、５５６的适宜群体为７０００株／亩，此密度条件下，品种的冠层结构、光合特性和产量均表现最佳。运５７０在试验密度范围内，无明显规律，仅以６０００株／亩的群体时产量最高。在水肥满足条件下，通过控制群体密度是提高光能利用有效的栽培技术途径。
Three different biological types cotton varieties and strains Jinmian 10,556,Yun570 were experimented for determining the optimum population density of them.The canopy structure photosynthesis characters and their relationship with yield were studied.The experimental results shows,Jinmisn 10 and 556 strains have ideal canopy structure and photosynthesis characters in 7000 plants/mu population density,therefore,can get the optimum yield.Yun 570 have no proper population density under this experiment.
基金
山西省自然资金
关键词
冠层结构
光合特性
产量
棉花
Canopy structure
Photosynthesis characters
Yield
Cotton(G.hirsutum L.)
