| 棉花组织结构与黄萎病抗性的关系 |
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| 引用本文： | 顾爱星,张翠芳,曲延英,郭庆元.棉花组织结构与黄萎病抗性的关系[J].植物病理学报,2011,41(5):502-508. |
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| 作者姓名： | 顾爱星 张翠芳 曲延英 郭庆元 |
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| 作者单位： | 新疆农业大学农学院,乌鲁木齐,830052 |
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| 基金项目： | 新疆维吾尔自治区科技厅重大专项，新疆维吾尔自治区科技厅高新技术“棉枯、黄萎病抗病子品种(系)创制” |
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| 摘 要： | 黄萎病严重危害棉花生产。本试验以温室种植31 个不同抗性的棉花品种为材料,通过对供试品种的组织结构研究,使用根系扫描法和石蜡切片法,了解棉花对黄萎病的抗性机制。结果如下:棉花根系的吸收根根长密度与相对病指呈显著正相关,相关系数为0. 923;抗病品种与耐病品种、感病品种的总长度、总投影面积、总表面积和吸收根根长密度差异显著,但耐病品种与感病品种的这4 个指标差异不显著。抗病材料根、茎的组织中薄层细胞密度大于感病材料,耐病品种根、茎的薄层细胞密度介于两者之间;抗病品种的根和茎的导管数最多,导管直径最小,其次是耐病品种,感病品种的根和茎中导管数最少,但是导管直径最大。棉花根系的吸收根根长密度,根和茎的薄层细胞密度,导管数可以作为对黄萎病抗性的检测指标。
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| 关 键 词： | 棉花 黄萎病 组织结构 抗性机制 |
Relationship of tissue structure and resistance to Verticillium wilt in cotton |
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| GU Ai-xing,ZHANG Cui-fang,QU Yan-ying,GUO Qing-yuan.Relationship of tissue structure and resistance to Verticillium wilt in cotton[J].Acta Phytopathologica Sinica,2011,41(5):502-508. |
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| Authors: | GU Ai-xing ZHANG Cui-fang QU Yan-ying GUO Qing-yuan |
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| Institution: | GU Ai-xing,ZHANG Cui-fang,QU Yan-ying,GUO Qing-yuan(College of Agronomy,Xinjiang Agricultural University,Urumqi 830052,China) |
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| Abstract: | Verticillium dahliae Kleb.harms seriously production of cotton.Thirty-one cotton cultivars with different resistance were used in the greenhouse,aimed to analyse the resistance to Verticilium wilt in cotton.Tissue structure was studied to realize the resistance mechanism of cotton to Verticilium wilt using the method of root scanning and paraffin slice.The results showed that:the density of roots which absorbed water and nutrition had correlation with the disease index,r=0.923.There was significant differen... |
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| Keywords: | cotton verticillium wilt tissue structure resistant mechanism |
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