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对晋棉１０号品种９．０万～１５万株·ｈｍ－２５个群体密度梯度下的冠层结构、光合特性及其与干物质生产和分配的关系进行了研究。结果表明：在山西特早熟棉区适期播种条件下，晋棉１０号品种最适群体为１０．５万株·ｈｍ－２。该群体下，棉花冠层结构、光合特性及干物质生产与分配均优于其他群体，经济产量高出其他群体平均产量２５％以上。同时，提出了晋棉１０号品种适宜群体的若干指标，为确定棉花高产栽培措施及建立棉花生产管理模型提供了参考
The canopy structure, photosynthetic characteristics and their relationship with dry matter production and distribution under the density gradient of 90,000-150,000 hm-25 in Jinmian 10 were studied. The results showed that the optimal population of Jinmian 10 variety was 105 000 hm-2 under the condition of proper sowing in Shanxi precocious cotton area. Under this population, the canopy structure, photosynthetic characteristics and dry matter production and distribution of cotton were better than other groups, and the economic yield was above 25% of the average output of other groups. At the same time, a number of indicators of suitable cotton Jinmian 10 varieties were put forward, which provided a reference for determining cotton high-yielding cultivation and establishing cotton production management model