摘要
对 2 0 0 2年红肉脐橙各物候期、落花落果数等观测资料进行了分析 ,结果表明 :红肉脐橙春梢的生长量随积温的增加而增加 ,生长曲线符合指数规律。生理落花落果时间在 4月 30日至 6月 10日之间 ,着果率 1 .5 9%。果实膨大停止并达到商品成熟期为 12月中下旬 ,成熟时间比国内最优脐橙纽荷尔晚 30余天 ,大于等于 10℃的积温5 6 85 5℃ ,降雨量 10 39. 9mm ,日照时数 14 16 9h ,丰产性能好。生理落果期平均温度 2 2 6℃ ,平均相对湿度73% ,落果率 86 . 9% ;平均温度 2 1 1℃ ,平均相对湿度 82 % ,落果率 96 .9%。
By means of observed data, the phenological phases and the numbers of abscised fruits and flowers, etc., were analyzed. The results show that the number of spring twigs increased with the increasing accumulated temperature, and the growing curve conformed to the index law. The physiological abscission period of fruits and flowers was from 30 April to 10 June and the fruit-bearing rate is 1 59%. The fruit growth-stopping and maturation phase was the last ten days of December when the accumulated temperature (≥10℃) was 5685 5℃, the rainfall was 1039 9 mm and the sunshine duration was 1416 9 hours. Its maturation phase was 30 days later than Newherl (the current best high-yield navel orange in China). During the physioloyical fruit-dropping period, the fruit-dropping rate was 86 9% when the mean temperature was 22 6 ℃ and the mean relative humidity was 72%, and the fruit-dropping was 96 9% when the mean temperature was 21 1 ℃ and the mean relative humidity is 82%.
出处
《气象科技》
2005年第1期77-80,共4页
Meteorological Science and Technology
基金
国务院三峡工程建设委员会办公室生态环境补偿费资助
