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一、异常落果现象所谓异常落果,是1983年提出的新概念。即在生理落果期间遇到不良条件,使幼果在短期内突然大批脱落,落果率大大超过正常幅度,使产量锐减甚至失收。据观察,温州蜜柑第一次生理落果在谢花后几天开始,历时约一个月(落果结束期相当于从开花后有10℃以上有效积温累计达360℃时),正常年景一般落果率占总花量
First, the abnormal fallout phenomenon The so-called abnormal fall, is proposed in 1983, a new concept. That is, during the physiological decadent encounter bad conditions, so that a sudden a large number of young fruit off a large number in the short term, falling much higher than the normal rate of decline, the output plummeted or even lost. It has been observed that the first physiological drop of Satsuma mandarin begins in a few days after Thanksgiving and lasted about one month (the end of the drop is equivalent to an accumulated cumulative temperature of 360 ° C above 10 ° C after flowering) The total amount spent