| 陕西省小麦抗白粉病基因及新育成小麦品种(系)抗白粉病分析 |
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| 引用本文： | 李强,王保通,吴兴元,段双科,王芳.陕西省小麦抗白粉病基因及新育成小麦品种(系)抗白粉病分析[J].植物保护学报,2008,35(5):438-442. |
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| 作者姓名： | 李强 王保通 吴兴元 段双科 王芳 |
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| 作者单位： | 西北农林科技大学植物保护学院,陕西省农业分子生物学重点实验室,杨凌,712100 |
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| 基金项目： | 国家科技支撑计划
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国家公益性行业计划
，
陕西省13115科技创新工程重大科技专项
，
教育部长江学者和创新团队发展计划
，
高等学校学科创新引智计划
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| 摘 要： | 为明确已知小麦抗白粉病基因载体品种以及2005—2007年陕西省新育成小麦品种(系)的抗病性,采集陕西关中不同地区小麦白粉病菌作为菌源,分年度在人工诱发病圃中对32份已知抗白粉病基因品种及578份新育成小麦品种(系)进行鉴定。结果表明,目前在陕西省仅Pm21、Pm4a、Pm5 6、Pm2 Talent及小黑麦具有优良的抗病性;Pm4b、Pm5(Mli)、Pm13、Pm19、Pm"Era"、Pm2 Mld的抗病性较弱;其它基因抗病性较差。新育成的小麦品种(系)中绝大部分对白粉病表现感病,苗期和成株期均抗病的材料仅27份,占4.67%,成株期抗病性的46份,占7.96%,其中,簇毛麦后代材料抗病性较高。
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| 关 键 词： | 小麦白粉病 抗病基因 小麦品种(系) |
| 收稿时间： | 3/5/2008 12:00:00 AM |
| 修稿时间： | 3/5/2008 12:00:00 AM |
Analysis on resistant genes and new-breeding wheat cultivars |
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| Li Qiang,Wang Baotong,Wu Xingyuan,Duan Shuangke and Wang Fang.Analysis on resistant genes and new-breeding wheat cultivars[J].Acta Phytophylacica Sinica,2008,35(5):438-442. |
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| Authors: | Li Qiang Wang Baotong Wu Xingyuan Duan Shuangke and Wang Fang |
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| Institution: | College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, Shaanxi Province, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, Shaanxi Province, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, Shaanxi Province, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, Shaanxi Province, China;College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, Shaanxi Province, China |
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| Abstract: | To evaluate the known resistant genes of powdery mildery and new-breeding cultivars (lines) in 2005-2007 for resistance to wheat powdery mildew in Shaanxi Province, 32 wheat varieties (lines) carried these known resistant genes and 578 new-breeding cultivars (lines) were identified in the disease nursery. The results showed that only Pm21, Pm4a, Pm5 6, Pm2 Talent and Triticale showed high resistance, and Pm4b, Pm5(Mli), Pm13, Pm19, Pm"Era", Pm2 Mld had weak resistance and the remainder genes became susceptible. The identification results of new-breeding cultivars (lines) indicated that most of these cultivars (lines) were susceptible, and 27 cultivars (lines) were resistant both at seedling and adult stage which percent was 4.67%, and 46 cultivars (lines) were resistant only at adult stage which percent was 7.96%. Progenies from Haynaldia villosa showed fine resistance. |
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| Keywords: | wheat powdery mildew resistant gene wheat cultivars (lines) |
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