龙王帽杏树落花落果调查

Investigation on the Flower and Fruit Drop of Apricot Longwangmao

对龙王帽仁用杏树落花落果的一般规律及发生原因进行了初步调查分析，结果表明， 在平顺县落花集中发生在４ 月２６ 日以前， 导致落花的主要原因有开花早、本身存在部分不完全花， 以及低温、大风、冻害等。落果集中发生在５ 月２６ 日以前，主要由于新梢生长与果实发育竞争养分而造成。在此基础上提出了一些预防和减少落花落果的具体措施。

Investigated and studied the law of apricot flower and fruit drop,and its cause,the results showed that the flower drop occurred before April 26,and major causes are blooming early with part imperfect flowers,lower temperature,stronger wind,and freezing damage.The mass fruit drop was before May 26,as a result of new growth fighting against fruit development.Based on that,the author put forward some measures to prevent and reduce flower and fruit drop of apricot.