219个小麦品种成株期慢锈性品种的筛选  

Screening of 219 Wheat Cultivars for Adult-plant Slow-rusting Resistance to Stripe Rust

作　　者：刘文涛[1,2] 康晓慧[1] 程登发[2] 孙京瑞[2] 

机构地区：[1]西南科技大学生命科学与工程学院,四川绵阳621010 [2]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193

出　　处：《安徽农业科学》2010年第16期8350-8354,共5页Journal of Anhui Agricultural Sciences

基　　金：国家"973"项目(2006CB10023);现代农业产业技术体系建设专项资金资助(nycytx-03);"十一五"国家科技支撑计划(2006BAD08A05)

摘　　要：[目的]从几大小麦产区主栽品种中筛选出慢锈品种。[方法]用当前条锈菌优势小种接种孕穗期的小麦,计算各品种的潜育期、病情指数及千粒重损失率,从而推算出各品种的慢锈类型。[结果]219个参试品种中筛选出5个免疫品种、67个高度慢锈品种、66个中度慢锈品种、11个耐锈品种和70个感病品种。[结论]在主栽品种中感病类型占有相当的比例,在今后的育种工作中,应多纳入持久抗病种质,逐步淘汰感病种质。[Objective] The study aimed to screen wheat cultivars with adult-plant slow-rusting resistance to stripe rust from the main wheat cultivars in several wheat producing area.[Method] The dominant of the current stripe rust races were used to inoculate wheat at booting stage.The latent period,disease index and grain weight loss rate of various types were calculated.Then slow-rusting type of various species was reckoned.[Result] 5 immune varieties,67 varieties of a high degree of slow rusting,66 moderately slow rust species,11 varieties of rust-resistant and 70 susceptible were screened out from 219 tested varieties.[Conclusion] The susceptible cultivar is still a considerable proportion in the main wheat cultivars.In the future work,it should increase more durable disease resistance into germplasm,and phase out susceptible germplasm.

关 键 词：小麦 条锈病 慢锈性 

分 类 号：S512.1[农业科学—作物学]