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四、夏橙果实生长与气候因素伏令夏橙果实生长规律与温度关系观察,每年于第二次生理落果停止后(7月中)始至次年5月末,定树、定果、定期观测果实纵横径,按V=4/3πR~3公式计算果实体积增长量,见图三。夏橙果实体积月增长量和旬增长率,以7～11月中旬最大,在此期间的旬均温为12.5℃～31.9℃,其中8～9月旬均温20.2℃～31.9℃的增长率最高,以8月中下旬均温
Fourth, the growth of summer orange fruit and climate factors Summergreen orange fruit growth rules and temperature relationship observed, each year after the second physiological decadent stop (mid-July) until the end of May next year, set tree, fixed fruit, regular observation Fruit vertical and horizontal diameter, according to V = 4 / 3πR ~ 3 formula to calculate the fruit volume growth, see Figure III. The monthly growth rate and the ten-day growth rate of summer orange fruit volume were the largest in the middle of July-November, with the average temperature of 12.5 ℃ ~ 31.9 ℃ in this period, of which the average growth rate of 20.2 ℃ ~ 31.9 ℃ in August ~ September Highest, average temperature in late August