Gas exchange characteristics in four growth stages of the two cotton genotypes (Qinyuan 4 and Jinmian 21) were studied with the same cultivating conditions in the same high yield cotton field in Cele, located in the southern border of Taklimakan Desert.

• 在位于塔克拉玛干沙漠南缘的策勒高产棉实验区 ,在同样的气候、土壤、灌溉和栽培管理条件下 ,对秦远 4号和晋棉 2 1叶片 4个生育期的气体交换特征进行了测定。