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综合几年对棉铃发育与气候条件的系统研究结果,初步明确了棉铃有关经济性状的具体热量指标:≥15℃活动积温值1500～1500度-日为棉铃正常吐絮的积温指标,棉铃正常吐絮不得少于1100度-日,铃期与铃期内日平均气温呈高度负相关(r=—O.9087)。15℃为棉铃能否正常吐絮的最低临界温度,单铃籽棉率与50日龄内≥18℃的天数及其积温值相关显著,35天和800度-日为单铃籽棉率的最低临界指标,平均气温低于20℃,成熟棉籽不足30％,纤维品质优劣与花期早迟及水、热、光等气候条件密切相关。安阳棉花有效开花的终止期为8月20日,要使棉花优质高产,必须以伏桃为主体,力争早秋桃,尽量减少秋桃在三桃中的比例。
According to the results of systematic research on the development of cotton bolls and climatic conditions for several years, the specific calorific value of cotton bolls related to economic traits was initially determined: the accumulated temperature value of ≥15 ℃ was between 1500 and 1500 degrees Celsius - the accumulated temperature index of normal boll bolls, Less than 1100 degrees - day, bell-day period and the average daily temperature was highly negative correlation (r = -O.9087). The lowest critical temperature of boll boll opening at 15 ℃ was significant. The boll rate of boll seed was significantly correlated with the number of days ≥18 ℃ and its accumulated temperature at 50 days, and the days at 35 and 800 degrees were the lowest critical index , The average temperature is below 20 ℃, mature cottonseed less than 30%, the quality of fiber quality and flowering is late and water, heat, light and other climatic conditions are closely related. Anyang effective end of cotton flowering on August 20, to make high-quality cotton, must be the main Vver, and strive to early peach, peach, peach to minimize the proportion of peach.