十字花科蔬菜根肿病抗性水平筛选研究

Study on Resistance Screening of Cruciferclubroot

通过不同方法对十字花科蔬菜根肿病耐病性进行研究。结果表明,温室根肿病菌接种,花油6号、花油8号均表现抗病(R),CR-千秋白菜表现高抗(HR),83-1白菜表现中抗(MR)。根肿病病田育苗移栽,星星在正反季均表现高抗(HR);83-1白菜正季表现抗病(R),反季表现感病(S)。根肿病病田直播,星星正季表现抗病(R),反季表现感病(S);83-1正季表现中抗(MR),反季表现高感(HS);不同品种根肿病病田直播,不同品种间对根肿病抗性差异明显,不同品种均表现反季发病比正季严重,病情指数高低顺序为83-1白菜>花椰菜>青菜>西兰花>苤蓝>中甘11。

Resistance screening tests of cruciferalbroot were done according to the different identification methods. The results indicated that ‘ Huayou 6＇, ‘ Huayou 8＇ of rape were resistant varieties. ‘ CR-Qianqiu chinese cabbage＇ were highly resistant to cruciferclubreot, and ‘ 83-1 chinese cabbage＇ were moderately resistant variety. The test results of transplantation of seedlings showed ‘ the star＇ was highly resist- ant variety in positive and negative season; ‘ 83-1 chinese cabbage ＇ was resistant in positive season, but was sensitive in negative season. The test findings of direct seeding showed ‘the star＇ was resistant in positive season, and sensitive in negative season; ‘83-1 chinese cab- base ＇ was moderately resistant in positive season, and highly sensitive in negative season. The differences of the resistibility to cruciferelubre- ot were very notable in different varieties. The result of disease index was ‘ 83-1 chinese cabbage＇ 〉 cauliflower 〉 green vegetables 〉 broccoli 〉 kohlrabi 〉 zhonggan 1 I.