白银地区市售黄瓜品种对黄瓜褐斑病的抗性

Resistance Identification of Commercially Available Cucumber Varieties on Brown Spot in Baiyin Area

采用孢子悬浮液喷雾接种法(孢子浓度为1伊104个/m L),选择分离自靖远县日光温室罹病黄瓜茎和叶片的2个多主棒孢霉(Coryne sp ora c assiicola)菌株,对白银地区市售的15个黄瓜品种进行了黄瓜褐斑病抗性鉴定。结果表明,测试的15个品种中,津旺68表现高抗,津棚A2、津典303、津优312、津棚A1、碧丽1号、SV1102CC表现抗病,建议在白银地区优先选用。

In order to provide reference for local cucumber growers choosing cucumber varieties,15 commercially available cucumber varieties collected from Baiyin area have carried out the cucumber brown spot resistance evaluation. Two strains of Coryne sp ora cassiicola be used in this test,which are isolated from diseased cucumber stem and leaf at sunlight greenhouse in Jingyuan county.Conidia susp ension(conidial concentration is 1 ×104/m L)is sprayed on cucumber seedlings with 2 true leaves. The result show s that Jinwang 68 is highly resistant,Jinpeng A2,Jindian 303,312 Jinyou 312,Jinpeng A1,Bili 1,SV1102 CC are resistant. Finally,suggestions on Baiyin area should be selected in preference.