枣树缩果病的发生规律研究  

Regularity of Occurrence on Jujube-fruit Shrink Disease

作　　者：薛晓妮[1] 宋晓斌[1] 王长柱[1] 李新岗[1] 张学武[1] 高文海[1] 

机构地区：[1]西北农林科技大学,陕西杨陵712100

出　　处：《西北林学院学报》2012年第4期172-176,共5页Journal of Northwest Forestry University

基　　金：林业公益性行业科研专项"枣树重大病虫害防治及优质商品枣安全生产技术研究"(201104017);十二五科技支撑项目(2012BAD19B08)

摘　　要：对枣缩果病的发生情况进行了调查。结果表明:缩果病的发生在不同品种、不同气候、不同土壤类型、不同管理水平等因素之间存在着一定差异。在陕北缩果病只有1个发病期,8月初开始显症,8月下旬达到高发期。在同一枣园,缩果病呈逐年加重趋势;以木枣发病最轻,7月鲜发病最重,其余品种轻重依次排序为晋枣、蜂蜜罐、赞皇大枣、狗头枣、梨枣、骏枣;夏季持续干旱高温及其随后的降雨使缩果病发生严重;含石砾的沙质土枣园,缩果病发生重于黄土上所建枣园。施入化肥的枣园缩果病发生重于施农家肥的枣园。Occurrence regularities of jujube-fruit shrink disease （JFSD） were investigated. The results showed that there were certain differences among different cultivars, climates, soil types and management levels. The disease occurred only one period in a year in northern Shaanxi： the symptom appeared in early August and the high-incidence season was at the last ten days of August. The rate of infected fruit was in- creased year by year in the same orchard. The susceptibility of Zizyphus jujube Mill. Cv. ＂Muzao＂ was the lightest, followed by ＂Jinzao＂, ＂Fengmiguan＂, ＂Zanhuangdazao＂, ＂Goutouzao＂, ＂Lizao＂, ＂Junzao＂, and ＂Qiyuexian＂ . The disease occurred seriously under the conditions of sustained high temperature espe- cially subsequent rainfall. The disease at the orchard with sandy soil was more serious than that with lo- ess. The disease at the orchard applied with fertilizer was more serious than that with farmyard manure and scientific management was useful to control the disease.

关 键 词：枣 缩果病 发生规律 

分 类 号：S763.15[农业科学—森林保护学]