苹果黑星病的症状类型及时间动态  

Symptom types and temporal dynamic of apple scab

作　　者：田雪亮[1] 梁振宇[1] 杨家荣[1] 胡小平[1] 杨之为[1] 

机构地区：[1]西北农林科技大学植物保护学院,陕西杨陵712100

出　　处：《西北农林科技大学学报（自然科学版）》2003年第B10期19-21,共3页Journal of Northwest A&F University(Natural Science Edition)

基　　金：欧盟科技合作项目(ICA4-CT-2001-10001)

摘　　要：　描述了苹果黑星病症状的多样性,并根据寄主的反应和病征的特点,将其分为疱斑型、边缘坏死型、干枯型、褪绿型、梭斑型、疮痂型6类;初步确定了苹果黑星病在陕西旬邑县有2个发病高峰,1个出现在7月上旬,另1个出现在9月初;建立了病害流行时间动态函数。Symptom diversity of apple scab was studied.Based on the response of host and characters of pathogen,symptoms were classified into seven groups ranging from protuberant type,margin necrotic type,kraurotic type,chlorotic type,shuttle shape type to scab type.Two peaks of apple scab,which occurred in the first 10 days of July and in the beginning of September,appeared during apple growing in Xunyi county,Shaanxi province.At the same time,temporal dynamic function of apple scab was developed.

关 键 词：苹果 黑星病 症状类型 时间动态 寄主 发病特点 

分 类 号：S436.611[农业科学—农业昆虫与害虫防治]