首页 | 本学科首页   官方微博 | 高级检索  
     


Possible hormonal modes of action of three apple thinning agents
Authors:A. Ebert  F. Bangerth
Affiliation:Institut für Obst-, Gemüse- und Weinbau, Universität Hohenheim, 7000 Stuttgart 70 F.R.G.
Abstract:Thinning-experiments were carried out with carbaryl, ethephon (CEPA) and the amide of naphthaleneacetic acid (NAAm) in the apple cultivars ‘Golden Delicious’ and ‘King of the Pippins’. In order to get more information on the possible hormonal modes of action of these substances, fruit treated with thinning-agents were analysed for ethylene (C2H4), diffusable and extractable indoleacetic acid (IAA), abscisic acid (ABA) and gibberellin-like substances (GAs), and compared with water-treated controls.It is thought that the observed reduction in IAA transport is a major factor in the mode of action of all 3 thinning-agents investigated. Auxin transport may be affected directly by the chemicals or via a shift in the mobilizing ability of the treated fruits. The role of other hormones investigated is briefly discussed.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号