枣树喷施生长调节剂的适宜时间  

The Suitable Time of Spraying Growth Regulator on Jujube

作　　者：于强 杨文娟[1] YU Qiang;YANG Wen-juan(The 33rd regiment of the second division of Agricultural Development Service Center,Xinjiang Production and Construction Corps,Yuli Xinjiang 841505,China)

机构地区：[1]新疆生产建设兵团第二师三十三团农业发展服务中心,新疆尉犁841505

出　　处：《北方果树》2021年第4期22-23,共2页Northern Fruits

摘　　要：花期营养不足和高温干旱是新疆地区红枣授粉受精不良的主要原因。为了提高坐果率、减少落果,作者以花期喷赤霉素来增加坐果量。但赤霉素的喷施时间很关键。试验表明,喷施赤霉素的最佳时间为枣吊开花70%~80%时,即试验当年的7月5日。Insufficient nutrition and high temperature and drought at flowering stage are the main reasons for poor pollination and fertilization of jujube in Xinjiang.In order to improve the fruit setting rate and reduce fruit drop,gibberellin was sprayed at flowering stage to increase fruit setting.But the spraying time of gibberellin is very important.The results showed that the best time for spraying GA3 was 70%~80%flowering of jujube on July 5.

关 键 词：红枣 枣吊坐果数 赤霉素 喷施时间 

分 类 号：S665.1[农业科学—果树学]