摘要
研究对南方7省抗白粉病栽培大豆种质资源进行了筛选,以期获得抗性大豆资源,为杂交育种培育抗病品种提供优异亲本,并探讨了栽培大豆的抗病资源分布和白粉病的防治。供试材料分别来自海南、广东、湖南、广西、福建、四川、江西7个省(区)。在白粉病高发期进行田间调查,同时采用喷雾接种法进行人工辅助接种,待充分发病后,分3次进行植株发病情况调查。结果表明:在285份栽培大豆资源中有161份材料表现为抗病反应,占鉴定资源总数的56.5%;33份资源为中间反应类型,占11.6%;91份资源表现为感病反应,占31.9%。对栽培大豆资源的来源分析表明:广西的栽培大豆资源抗性最丰富,占78.6%;其次为广东和四川,抗性比例分别为75.0%和64.5%。
For the first time powdery mildew resistant was screened in seven provinces of southern cultivated soybean germ- plasm in order to obtain resistant soybean resources for providing excellent foster parents in further cross-breeding of resistant varieties. Furthermore, the distribution of resources cultivated soybean disease and prevention and control of powdery mildew were discussed in this study. Test materials from Hainan, Guangdong, Hunan, Guangxi, Fujian, Sichuan and Jiangxi provinces （regions） were used. The incidence survey was conducted for 3 times when the plants were fully incidence, at the same time, spray inoculation method was used. There were 161 parts in 285 parts which showed antiviral response accounting for 56. 5% of total resources identified; 33 were intermediate reaction types, accounting for 11.6%; 91 resource plant showed susceptible reaction, accounting for 31.9%. It showed that cultivated soybeans which owned resistant ability were the most abundant in Guangxi, accounting for 78. 6% ; followed by Guangdong and Sichuan, resistance rates were 75.0% and 64. 5%.
出处
《大豆科学》
CAS
CSCD
北大核心
2016年第2期209-212,221,共5页
Soybean Science
基金
国家自然科学基金(31171508)
关键词
栽培大豆
大豆白粉病
抗性筛选
Cultivated soybean
Powdery mildew
Resistance screening
