1984～1986年试验表明,中棉10号开花后10～15天铃体基本定型。铃期长短与花后50天日均温呈负相关,在26～19℃范围内,每降温1℃,铃期约延长5天。铃重与花后50天平均温度呈对数关系,平均温度高于21℃,铃重增加较慢;低于21℃,铃重明显随温度下降。百铃纤维日增重与棉铃发育期间的日均温、白天均温、日最高气温和空气相对湿度呈抛物线关系,与日照时数和日温度(6～14℃)呈线性正相关,与夜均温(27～15℃)呈线性负相关。 From 1984 to 1986 experiments showed that 10 to 15 days after flowering Zhongmian basic set bell body. The duration of boll was negatively correlated with the average daily temperature of 50 days after anthesis, and the duration of the boll was extended by about 5 days in the range of 26 ~ 19 ℃ with every 1 ℃ of cooling. The boll weight had a logarithmic relationship with the average temperature of 50 days after flowering, the average temperature was higher than 21 ℃, and the boll weight increased slowly. When the temperature was below 21 ℃, the boll weight decreased obviously with temperature. The daily average temperature during daytime, average daily temperature at daytime, daytime maximum air temperature and air relative humidity were the linear relationship between the daily gain of bell berry fiber and the boll development, and had a linear positive correlation with sunshine hours and daily temperature (6 ~ 14 ℃) Average temperature (27 ~ 15 ℃) showed a linear negative correlation.