用植物生长调节剂减少“台湾长果桑”落果的试验初报  

Preliminary Report on Reducing Fruit Drop of Taiwan Long Mulberry Fruit Using Plant Growth Regulators

作　　者：陈佳婧 任杰群 郑章云 CHEN Jia-jing;REN Jie-qunZHENG Zhang-yun(Chongqing Three Gorges Academy of Agricultural Sciences,Chongqing 404155,China;Chongqing Three Gorges University,Chongqing 404155,China)

机构地区：[1]重庆三峡农业科学院,重庆404155 [2]重庆三峡学院,重庆402020

出　　处：《蚕学通讯》2023年第3期1-5,共5页Newsletter of Sericultural Science

基　　金：重庆市商务委茧丝绸项目(20230226151849301);重庆市现代山地特色高效农业(蚕桑)技术体系(CQMAITS202311-8)。

摘　　要：在果桑种植过程中,部分优良果桑品种落果严重,“台湾长果桑”的落果率甚至达到50%~80%,给果农造成很大的经济损失。为此,以“台湾长果桑”为试验果桑,采用植物生长调节剂防落素进行桑果不同发育时期喷施及不同喷施次数的效果试验,调查座果率;选取7种植物生长调节剂进行果桑保果药剂的筛选试验。结果表明:采用防落素250~1000倍液或8%对氯苯氧乙酸钠可溶粉剂3000~5000倍液、85%2,4滴钠盐可溶性粉剂3000~5000倍液在果桑盛花期喷施1次,对减少“台湾长果桑”的落果有明显效果,果桑的座果率达到90%以上。During the process of mulberry fruit cultivation,some excellent mulberry fruit varieties suffer from severe fruit drop,especially Taiwan long mulberry fruit,with a fruit drop rate of 50%-80%,causing huge economic losses to fruit farmers and hindering the healthy development of the fruit mulberry industry.For this purpose,we used Taiwan long mulberry fruit as the material and sprayed PCPA at different stages and times to investigate the fruit setting rate;Seven different plant growth regulators were selected for the screening experiment of fruit preservation agents for mulberry fruit.The results indicate that:250-1000 times solution of PCPA,3000-5000 times solution of 8%p-chlorophenoxy Sodium acetate soluble powder,3000-5000 times solution of 85%2,4-drop sodium salt soluble powder were sprayed once at the full flowering stage of the mulberry fruit,and the fruit setting rate of Taiwan long mulberry fruit reached more than 90%.

关 键 词：果桑 台湾长果桑 植物生长调节剂 座果率 

分 类 号：S663.9[农业科学—果树学]