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南疆棉区高产栽培技术模式下陆地棉的干物质积累呈 S型曲线增长过程 ,高产棉花总积累的干物质为 1 1 8.7g/株 ,干物质增长最快的时段在 8月 2～ 1 2日(出苗后 85～ 95天 )。地上部干物质分配中心随生育进程发生着如下动态转移 :真叶→茎枝→蕾花→幼铃→铃壳→籽棉。棉铃内部的干物质分配、运输转移随时间及节位的变化呈现出有规律的变化
The dry matter accumulation of upland cotton showed a S-curve growth under high-yielding cultivation techniques in southern cotton area. The total dry matter accumulation of high-yielding cotton was 118.7g / plant, the fastest growing period of dry matter was in August 2--1 2 days (85 to 95 days after emergence). The above ground dry matter distribution center with the progress of the following dynamic transfer occurs: true leaf → stems → buds → young bell → bell shell → seed cotton. Cotton bolls within the distribution of dry matter, transportation and transfer changes with time and nodules showed a regular change