绵阳地区小麦近等基因系多品种混播的抗条锈病效果研究及异常寒潮的影响  

A Study of the Effect of Wheat Varieties with Near-isogenic Lines on Resistance to Stripe Rust and Abnormally Cold Weather in Mianyang

作　　者：张华[1] 康晓慧[1] 陈万权[2] 刘博[2] 梁永亮[1] 杨亨[1] 

机构地区：[1]西南科技大学生命科学与工程学院,中国绵阳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,中国北京100193

出　　处：《湖南师范大学自然科学学报》2017年第5期24-28,共5页Journal of Natural Science of Hunan Normal University

基　　金："十二五"国家科技支撑计划资助项目(2012BAD19B04);国家自然科学基金资助项目(61661136004);现代农业产业技术体系资助项目(CARS-03)

摘　　要：为了比较不同小麦品种的抗性基因对小麦条锈病发生的影响,以及小麦对连续一个月寒潮且平均气温突降10℃以上的适应能力,以小麦抗条锈病近等基因系6个品种为材料,在四川绵阳进行单播和混播处理,并和当地小麦进行比较分析.在自然发病条件下,研究了条锈病在单播和混播条件下的发病情况和寒潮对小麦抗病能力的影响.试验结果表明,6种小麦在不同生长阶段对条锈菌的反应型差异显著(P<0.05),不同近等基因品种单播和混播的枯芯率差异显著(P<0.05),同时,结合当年寒潮的影响,四川小麦品种适应当地异常环境的能力较强.In order to compare the effect of resistance genes of different wheat varieties on the occurrence of wheat stripe rust, and the adaptability of wheat to the cold weather up to a month and the average temperature of 10 degrees Celsius, in this paper, 6 varieties of wheat stripe rust resistance near isogenic lines were used as the mate-rials to carry out the unicast and mixed sowing treatments in Mianyang, Sichuan. Under the condition of natural disease, the incidence of stripe rust and the impact of cold weather on wheats disease resistance were thoroughly studied. Our test results show that the 6 kinds of wheat in different growth stages of wheat stripe rust reacted signifi-cantly differently （ P 〈 0. 05 ） , with significant difference in near isogenic varieties of dry mixture of unicast and core rates （ P 〈 0. 05 ） . At the same time, combined with the impact of current cold weather, our study showed that Sichuan wheat varieties could adapt well with the abnormal environment.

关 键 词：小麦 条锈病 反应型 病害指数 枯芯 冻害 

分 类 号：S512.1[农业科学—作物学]