不同营养元素对小麦禾谷孢囊线虫孵化及二龄幼虫存活的影响  

The effects of nutrient elements on the hatching of cyst and vitality of secondary stage juvenile of cereal cyst nematode

作　　者：王振跃[1] 施艳[1] 袁虹霞[1] 杨卫星[1] 李洪连[1] 

机构地区：[1]河南农业大学植物保护学院,郑州450002

出　　处：《植物病理学报》2013年第3期333-336,共4页Acta Phytopathologica Sinica

基　　金：国家公益性行业(农业)科研专项基金(200903040);河南省重点科技攻关项目(072102160007)

摘　　要：小麦禾谷孢囊线虫（CerealCystNematode，CCN）病是一种世界性病害，主要为害小麦（Tritic—umaestivum）、大麦（Hordeumvulgare）、燕麦（Ave—nasaliva）、黑麦（Secalecereale）等禾本科植物，近年来该病害在全世界发展迅速并造成严重经济损失，在我国，已证实该线虫在北京、山东、河南、河北、安徽等16个省、市、自治区均有分布，发病面积约200万hm2，The impacts of soil nutrient elements on cereal cyst nematode were studied. The results showed that the mortality rate of secondary stage juvenile（J2 ）treated with N or P at different concentrations as well as 6 fold concentration of K was obviously higher than that of control, while the other three elements showed no differ- ence. With respect to the minor elements, the mortality rate was higher than control when treated with Mn at a concentration over 5 fold and the mortality raised by the increase of concentration. Each Cu treatment increased the mortality significantly as compared with the control.

关 键 词：禾谷孢囊线虫 二龄幼虫 小麦 营养元素 存活 孵化 禾本科植物 经济损失 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治]