新疆大豆疫霉菌毒力及大豆品种抗病性  

Virulence of Phytophthora sojae and Disease Resistance of Soybean Cultivars in Xinjiang

作　　者：董立明[1] 王晓鸣[1] 郭庆元[2] 战勇[3] 朱振东[1] 

机构地区：[1]中国农业科学院作物研究所国家农作物基因资源与基因改良重大科学工程,北京100081 [2]新疆农业大学农学院,乌鲁木齐830052 [3]新疆农垦科学院,石河子832000

出　　处：《新疆农业大学学报》2008年第4期11-15,共5页Journal of Xinjiang Agricultural University

基　　金："十一五"国家科技支撑计划(2006BAD08A08);公益性行业(农业)科研专项(nyhyzx07-053);国家重点基础研究发展计划"973"(2002CB111406)

摘　　要：对34株大豆疫霉菌(Phytophthora sojae)新疆分离物进行了毒力鉴定,发现新疆疫区大豆疫霉菌毒力结构复杂,不同地块之间、同一地块不同大豆疫霉菌分离物间都存在毒力差异。用7个不同毒力的分离物接种鉴定了19个新疆地区栽培大豆品种(系)的抗病性,其中10个品种(系)表现较好的抗性。： Phytophthora root rot caused by Phytophthora sojae is one of the most destructive diseases of soybean. This disease has been reported in Xinjiang Uygur Autonomous Region. In this study,34 isolates of P.sojae were isolated from soils collected from 7 soybean fields in different areas. Virulence of the isotares was identified by inoculating a set of standard differential cultivars or lines carrying single Rps gene. The results indicated that virulence composition of P. sojae population was complex in Xinjiang,there were great virulence difference among different areas, different fields, or in the same field. Disease resistance of 19 soybean cultivars or lines from Xinjiang were identified,by 7 different isolates with different virulence, among which 10 soybean cultivars or lines performed better resistance.

关 键 词：大豆 大豆疫霉菌 毒力 抗病性 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]