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秋天低温,使棉铃体积和壳重的日增长高峰及达到最大值所需天数,分别延长到开花后的第24天和38天左右,比伏桃长10～15天。秋桃发育前中期温度的高低,对铃重的影响,可能大于全铃期有效积温的作用。发育初期具有较高的温度,可以获得较大的启动速度,有利获得较高的铃重。温度低于18℃,铃体积、壳干重停止增长。最后单铃籽棉重的高低,与10天铃龄的铃壳干重,开花后10天内的日平均温度呈极显著直线回归关系;与体积达到最大值以前的日平均温度呈显著直线回归关系。
Autumn cold temperature, so boll volume and shell weight of the peak daily growth and the maximum number of days required to extend to 24 and 38 days after flowering, than v asparagi 10 to 15 days. Autumn and winter before and after the development of high and low temperature, the impact of boll weight may be greater than the full effective temperature accumulated role. Early development has a higher temperature, you can get a larger start-up speed, favorable access to a high bell weight. Temperature below 18 ℃, bell volume, shell dry weight to stop growing. Finally, the boll weight of bollworm seedlings had a very significant linear regression relationship with the dry weight of bollworm at 10 days of age and the daily average temperature within 10 days after flowering, and had a significant linear regression relationship with the daily mean temperature before reaching the maximum value.