沈阳市街路银杏生理抗性初探  

The study on the physiological resistance of Ginkgo street trees in Shenyang

作　　者：徐岚[1] 田伟[1] 荆晓梅 黄桂凤[3] 

机构地区：[1]沈阳市园林科学研究院 [2]沈阳市园林植物保护中心 [3]沈阳市绿化管理处

出　　处：《农业科技与信息（现代园林）》2008年第4期63-65,共3页Modern Landscape Architecture

摘　　要：银杏在沈阳已有几十年的栽培历史,多年来银杏出现的主要问题是生长缓慢,幼树出现过冻害或行道树日灼现象。本世纪90年代末开始,沈阳银杏出现生长不良现象,表现为6月初叶片就枯黄,严重时脱落,街路尤为严重。7-8月枯黄现象缓解,新枝抽出新叶,新叶无枯黄出现。病株数量和枯黄程度逐年加重。本文就银杏出现的问题进行了现状调查和原因分析,并提出了对策。Ginkgo has a long cultivation history of more tthan tens of years in Shenyang. For many years its main problems are slow growing,freeze injury of young plants or sunburning of street trees. Since the end of 20th century,Ginkgo in Shenyang has growed badly with yellow leaves at the early June, seriously being shed off, particularly in streets. From July to August yellow leaves turn green with young buds growed from young shoots without yellow leaves. The number of diseased Ginkgo trees is growing rapidly with more serious yellow leaves. The paper is emphased on the survey and reason analysis of Ginkgo trees cultivation and the following suggestion is proposed .

关 键 词：银杏 生长不良 原因分析 对策 

分 类 号：S792.95[农业科学—林木遗传育种]