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贵农系列小麦种质资源在甘肃陇南的抗条锈病研究
曹世勤1,2,3, 贾秋珍2,3,4, 孙振宇2,3,4, 王万军5, 黄瑾2,3,4, 张勃2,3,4, 王晓明2,3,4, 骆惠生2,3,4
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(1甘肃省农业科学院小麦研究所,兰州 730070;2农业部天水作物有害生物野外科学观测实验站,甘肃甘谷 741200;3农业农村部国家植物 保护甘谷观测实验站,甘谷 741200;4甘肃省农业科学院植物保护研究所 兰州 730070;5 天水市农业科学研究所甘谷试验站, 甘肃甘谷 741200)
摘要:
甘肃陇南是小麦条锈病的常发易变区,是条锈菌新小种的策源地。小麦条锈病是发生于该区域小麦生产上最主要的病害,种植抗病品种是防治该病害最经济有效且绿色环保的措施。本文对贵农 19、贵农 21、贵农 22、贵农29、贵农 775 进行多年抗条锈病性监测,发现由于 CYR34 的发生流行,贵农 19、贵农 21、贵农 22 在甘肃陇南田间已丧失抗条锈病性而失去利用价值,贵农 29、贵农 775 目前在田间仍表现出较好的抗条锈病特性,可作为一线抗条锈病资源材料进一步利用。
关键词:  贵农系列  条锈病  抗病性  利用价值
DOI:10.13430/j.cnki.jpgr.20210115003
投稿时间:2021-01-15修订日期:2021-03-22
基金项目:国家重点研发计划(2018YFD0200405);国家自然科学基金(31560504)
Tests for Stripe Rust Resistance in Wheat Germplasm Guinong Lines at Southern Region of Gansu Province
CAO Shi-qin1,2,3, JIA Qiu-zhen2,3,4, SUN Zhen-yu2,3,4, WANG Wan-jun5, HUANG Jin2,3,4, ZHANG Bo2,3,4, WANG Xiao-ming2,3,4, LUO Hui-sheng2,3,4
(1 Wheat Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070;2Scientific Observing and Experimental Station of Crop Pests in Tianshui, the Ministry of Agriculture and Rural Affairs, Gangu 741200;3National Agricultural Experimental Station for Plant Protection at Gangu, the Ministry of Agriculture and Rural Affairs, Gangu 741200;4 Institute of Plant Protection, Gansu Academy of Agricultural Sciences, Lanzhou 730070;5Gangu Testing Station, Tianshui Agricultural Sciences, Gangu 741200)
Abstract:
The southern region of Gansu province, including Tianshui city and Longnan city, is a hot and the first emergency area of Puccinia striiformis f.sp. tritici (Pst) in China. Stripe rust is the most destructive disease of wheat in this area. Deployment of resistant-conferring wheat varieties is the most economical, environmental-friendly and effective method. Five wheat germplasm accessions including Guinong 19, Guinong 21, Guinong 22, Guinong 29 and Guinong 775 were derived from Guizhou university. Since 1994, these accessions have been widely used as parental lines in breeding for stripe rust resistance wheat cultivars in this area. We have conducted a long-term experiment during 1999-2020, in order to test for resistance to stripe rust at the seedling and adult stage both under greenhouse and field conditions. Three lines Guinong 19, Guinong 21, Guinong 22 have become susceptible by infection with Pst isolate CYR34, which was the ranking first popular race in Gansu province since 2015. Two accessions Guinong 29 and Guinong 775 remain to be resistant to CYR34 , and both are valuable in wheat breeding in southern region of Gansu province in future.
Key words:  wheat germplasm cultivar Guinong lines  stripe rust  resistance  using value

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