摘要
根结线虫病是云南省烟草上最重要的病害之一，用形态学、鉴别寄主试验及生物化学三种方法对云南省25个县市43个点采集的103份样本进行了鉴定，得出三种报给线虫，分别为花生根结线虫2号小种，爪哇根结线虫和南方根结线虫1号小种。其中花生根结线虫占优势，为采集点的45％，爪哇根结线虫为34％，南方根结线虫仅为21％。试验还表明，根结线虫的种类和分布在气候条件一致的情况下与品种的抗感性关系很大。
Root-knot disease is one of the most important diseases on tobacco in YunnanProvince. 103 samples were collected from 43 sampling points distributed in 25 countiesand cities tobacco-planting areas of Yunnan, and the nematodes were identified bymeans of morphology, differential host test and biochemical analysis. The experimentrevealed three species of root-knot nematodes on tobacco in yunnan, ie. Melidogyneare naria race 2, the prevalent species which account for 45% of the collected populations. M. javanica 34%, and M. incognita race 1 only 21%. The experiment alsoshowed that the species and distribution of root-knot nematodes on tobacco are closelyrelated to resistance of tobacco cultivars under similar weather conditions.
出处
《中国烟草学报》
EI
CAS
CSCD
1997年第2期33-40,共8页
Acta Tabacaria Sinica
基金
云南省烟草公司"九五"科技重点资助
关键词
根结线虫
比较鉴定
分布
Root-knot nematodes Comparative identification Distribution
