北京地区结缕草锈病流行规律及种质抗病性鉴定  

A study on the epidemic pattern of rust disease and germplasm resistance evaluation in Zoysia japonica in Beijing

作　　者：张露明[1] 方程[1] 张学勇[2] 王兆明 王赟文[1] 

机构地区：[1]中国农业大学动物科学技术学院草业科学系,北京100193 [2]辽宁大学生态环境研究所,辽宁沈阳110036 [3]辽宁省岫岩满族自治县草原监理站,辽宁岫岩114300

出　　处：《草业科学》2011年第2期279-285,共7页Pratacultural Science

基　　金："十一五"科技支撑项目"优质专用抗逆野牛草;结缕草新品种选育"(2006BAD01A19-3);牧草倍性育种技术研究项目(2008BADB3B03);国家自然科学基金面上项目(30972137)

摘　　要：本研究以采集自6个不同地点的162个结缕草(Zoysia japonica)植株为研究材料,于2008-2009年对参试材料在北京地区的锈病病原菌、病害流行规律以及植株抗病性进行了评价。结果表明,1)引起锈病的病原菌均为结缕草柄锈菌(Puccinia zoysiae);2)北京地区结缕草锈病病情指数整体呈单峰型发病特点,病情始发期集中于6月初-7月中旬,发病高峰期在9月中旬-10月上旬,11月底随着植株枯黄期的到来,病情发展逐渐停止;3)从参试材料中,初步确定了3个具有抗锈病性状表现差异的材料群体SD-1、SD-2和SD-3,筛选出14个抗病的单株和29个感病的单株。本研究结果为我国结缕草抗锈病选育及遗传研究提供了病理学依据和适合的种质材料。From 2008 to 2009 the authors have investigated the pathogen,the epidemic pattern,and the resistance trait of rust disease in Beijing about 162 Zoysia japonica individual plants which collected from 6 different areas in China.The results of this study showed that： 1） All pathogens of rust disease found in this research were Puccinia zoysiae pathogens,no other species was founded.2） In 2009,the rust disease occurrence index showed a single peak pattern.The disease started in the early June to the mid July,reached a peak at the mid September to the early October,and ceased at the end of November when frost came.3） Among all tested individual plants,3 groups（SD-1,SD-2,and SD-3） were characterized by their rust resistance ability primarily,and 14 resistant plants and 29 susceptible plants were selected.The above results may provide a pathological basis and proper germplasms for further breeding program and genetic research on rust disease resistance in Z.japonica.

关 键 词：结缕草 锈病 病情指数 抗病性 种质 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]