新疆鹰嘴豆壳二孢疫病病菌Ascochyta rabiei交配型、致病力及其对3种杀菌剂的敏感性测定  

Determination of mating type, virulence of Ascochyta rabiei in Xinjiang and its sensitivity to three fungicides

作　　者：蔡军 马德英 郁帆 羌松 CAI Jun;MA Deying;YU Fan;QIANG Song(Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest at Universities of Xinjiang Uygur Autonomous Region,College of Agronomy,Xinjiang Agricultural University,Urumqi 830052,China)

机构地区：[1]新疆农业大学农学院,农林有害生物监测与安全防控重点实验室,乌鲁木齐830052

出　　处：《植物保护》2020年第3期220-225,共6页Plant Protection

基　　金：国家自然科学基金(31560492)。

摘　　要：新疆是我国鹰嘴豆主要生产地,然而随着鹰嘴豆种植面积的扩大,集约化种植模式的发展以及广泛从国内外引种,鹰嘴豆壳二孢疫病(Ascochyta blight)开始发生。由于该病害在新疆发生历史较短,相关的研究还甚少。本研究对新疆鹰嘴豆壳二孢疫病病菌Ascochyta rabiei的交配型、致病力及对3种杀菌剂敏感性进行测定,结果表明,A.rabiei的交配型MAT1-1和MAT1-2在新疆木垒地区的分离频率明显偏离1∶1,以MAT1-2为优势种群,但其致病力与MAT1-1无显著差异,而MAT1-1对30%醚菌酯EC的敏感性显著低于MAT1-2。Xinjiang is the main production area of chickpea in China. However, with the expansion of chickpea planting area, the development of intensive planting mode and the wide introduction of chickpea from home and abroad, Ascochyta blight occurred. Because of the short history of the disease in Xinjiang, little is known about this disease. In this study, the mating type and virulence of Ascochyta rabiei were characterized, and its sensitivity to three fungicides was also tested in Xinjiang. The results showed that the separation ratio of two mating types, MAT1-1 and MAT1-2, deviated from 1∶1 obviously in Mulei area of Xinjiang. The MAT1-2 was the dominant population, but its virulence showed no significant difference with that of MAT1-1. The sensitivity of the MAT1-1 mating type to kresoxim-methyl 30% EC was significantly lower than that of MAT1-2.

关 键 词：鹰嘴豆 壳二孢疫病 ASCOCHYTA rabiei 交配型 致病力 杀菌剂敏感性 

分 类 号：S432.1[农业科学—植物病理学]