摘要
[目的]探究银杏果实控制技术。[方法]在不同时期对银杏树体喷洒不同浓度的萘乙酸、乙烯利和石硫合剂溶液,研究不同化学药剂对银杏果实的控制作用。[结果]不同时期喷洒不同浓度萘乙酸溶液后,银杏叶片出现发黄、枯萎,最后脱落,银杏新梢出现枯萎、枯死等现象,在花期喷洒乙烯利和石硫合剂溶液,可以控制银杏果实的数量,乙烯利溶液以浓度200、400、800 mg/L的处理效果较好,浓度1 200 mg/L处理的银杏会出现药害,喷洒石硫合剂溶液以浓度0.5%、1.0%的处理效果较好,浓度2.0%的处理效果需进一步试验;在果期喷洒乙烯利,对果实的形成无太大影响,对果实的重量、大小有一定影响。[结论]试验结果为相关部门进行银杏管理提供了参考。
[ Objective ] The aim was to explore the control technology of Ginkgo biloba L. fruit. [ Method ] Three kinds of agents like naphtha- lene acetic acid （NAA）, ethephon and lime sulphur at different concentrations were sprayed on Ginkgo biloba L. trees at different stages, and control effects of them on Ginkgo biloba L. fruit were studied. [ Result I After different concentrations of NAA were sprayed on Ginkgo biloba L. trees at different stages, the leaves of Ginkgo biloba L. appeared yellow, wilting and abscission, and their new shoots appeared wilting and death. After the ethephon and lime sulphur were sprayed at flowering stage, the amount of Ginkgo biloba L. fruit could be controlled, among them the ethephon at concentrations of 200,400 and 800 mg/L had good effects, while the ethephon at concentration of 1 200 mg/L appeared phytotoxicity, and the lime sulphur at concentrations of 0.5% and 1.0% had good effects, but the concentration of 2.0% need further test. Spraying the ethephon at fruit stage had no large influence in the form of fruit, and had certain influence in weight and size of fruit. [ Conclu- sion1 The results provide reference for management of Ginkgo biloba L.
出处
《安徽农业科学》
CAS
2015年第24期75-77,共3页
Journal of Anhui Agricultural Sciences
基金
上海市绿化管理指导站资助项目(ZK2011-07)
关键词
银杏
萘乙酸
乙烯利
石硫合剂
Ginkgo biloba L.
Naphthalene acetic acid （NAA）
Ethephon
Lime sulphur
