本研究1984～1989年在石河子、莫索湾、博乐、库尔勒、库车、阿拉尔、麦盖提、喀什和吐鲁番进行。1988年并在北京进行试验。6年结果表明,新疆各地6月至9月上旬气温条件甚为优越,适于棉铃良好发育。9月起气温下降快,其特点有三:一是白天的气温保持相当高;一天内气温≥20℃的时间逐渐减少;夜间气温下降急剧。各地从9月中旬至10月上旬的某一时期起,夜温过低成为纤维发育的限制因子。夜温过低对纤维强度和细度的影响大于长度。夜温过低降低棉叶中淀粉的降解和输出率,减少棉纤维发育所需的糖源,从而影响纤维发育。总之,各地早期、中期吐絮的棉铃纤维发育好,品质优良。北疆8月初、南疆8月中、东疆吐鲁番8月下旬开花的棉铃纤维发育不正常,品质差。南疆有的年份有的地方8月中旬开花的棉铃纤维发育仍好,也有8月初开花的棉铃纤维就不能正常发育。 This study was conducted in Shihezi, Mosuo Bay, Bole, Korla, Kuche, Alar, Maigatu, Kashgar and Turpan from 1984 to 1989. In 1988 and in Beijing test. The results of 6 years show that the temperature conditions in June and early September in Xinjiang are very superior and suitable for the good development of cotton bolls. The temperature dropped rapidly in September, its characteristics are three: First, the temperature during the day to maintain a very high; day temperature ≥ 20 ℃ time gradually reduced; the temperature dropped sharply at night. Starting from mid-September to early October, low night temperatures have been the limiting factor in fiber development. Night temperature is too low fiber strength and fineness greater than the length. Night temperature is too low to reduce the degradation of starch in cotton leaves and the output rate, reduce the cotton fiber development of the sugar source, thus affecting the fiber development. In short, around the early, mid bolting cotton boll fiber development, good quality. Beijiang early August, southern Xinjiang in August, the eastern Turpan in late August flowering cotton boll fiber development is not normal, poor quality. In some places in southern Xinjiang, the development of boll fiber blooming in mid-August is still good, and the cotton boll fiber blooming in early August can not develop normally.