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麦后移栽棉播种期和移栽期比麦行套栽棉迟,但移栽后气温高,棉株生长发育快,生育期以及棉株干物质积累与麦行套栽棉的差距逐渐缩短,到了吐絮期营养器官、生殖器官干物重与麦行套栽棉持平。各项生理代谢特性测定结果,叶绿素含量、光合作用强度、主茎皮可溶性糖含量各个生育期麦后移栽棉均高于麦行套栽棉,净同化率、根系伤流量则于花铃期后高于麦行套栽棉,这是麦后移栽棉发育快的重要生理原因。
The transplanting of wheat after sowing cotton sowing and transplanting period than the corn planted cotton late, but high temperature after transplanting, cotton plant growth and development fast, the growth period and the cotton plant dry matter accumulation and cotton cropping cotton gap gradually shortened , To the boll opening vegetative organs, dry weight of reproductive organs and wheat line cotton set flat. The physiological and metabolic characteristics of the measured results, chlorophyll content, photosynthesis intensity, the main bark soluble sugar content of wheat at each growth stage after transplanting cotton were higher than the wheat line cotton planting, net assimilation rate, root trauma at the flowering period Later than the wheat line set of cotton, which is an important physiological reason for the rapid development of wheat transplanting cotton.