| 长江流域国家棉花区域试验审定品种的主要特征特性演变分析(英文) |
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| 引用本文： | 许乃银,李健.长江流域国家棉花区域试验审定品种的主要特征特性演变分析(英文)[J].农业科学与技术,2014(6):964-969. |
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| 作者姓名： | 许乃银 李健 |
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| 作者单位： | 江苏省农业科学院经济作物研究所、农业部长江下游棉花与油菜重点实验室,江苏南京210014 |
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| 基金项目： | 国家转基因生物斯品种培育重大专项（2012ZX08013015）;江苏省农业科技自主创新资金项目（CX-12-5035）. |
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| 摘 要： | 目的]采用GGE双标图方法分析历年长江流域棉花区域试验中通过国审的棉花品种的特征特性,探索棉花品种类型和特征的演化趋势。方法]依据国家棉花品种审定标准对品种进行分类和综合评价指数构建。采用GGE双标图分析1981~2012年期间长江流域53个国审棉花品种主要目标性状的相关性。根据区域试验历年采用的对照品种,将区域试验数据分为5个时期,分析各时期内审定品种类型的比例和总体评价指数的变化动态。结果]棉花育种目标性状间存在着复杂的相关关系,有必要采用评价指数方法对品种进行综合评价。品种类型的变化动态研究表明,Ⅱ型品种开始于泗棉3号时期,其后呈下降趋势;Ⅲ型品种在各个时期均有一定比例,总体呈上升趋势;Ⅳ型品种为1993年前审定品种的主要类型,在泗棉3号时期以后占比例较小,且呈下降趋势。评价指数的动态变化表明,2003年前品种都在目前合格线以下;2004~2008年期间审定品种总体评分较高;2009年后审定品种的总体评分仅略高于合格线。结论]长江流域的棉花育种和品种审定中应更注重对马克隆值的改良和评价,以引导棉花丰产性和纤维品质的协调发展。
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| 关 键 词： | 棉花(Gossypium hirsutum L ) GGE双标图 品种类型划分 长江流域 |
Evolution of Main Characteristics of the Registered Cotton Cultivars in National Cotton Regional Trials in Yangtze River Valley |
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| Naiyin XU,Jian LI.Evolution of Main Characteristics of the Registered Cotton Cultivars in National Cotton Regional Trials in Yangtze River Valley[J].Agricultural Science ＆ Technology,2014(6):964-969. |
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| Authors: | Naiyin XU Jian LI |
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| Institution: | (Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences/Key Laboratory of Cotton and Rapeseed, Ministry of Agri- culture, Nanjing 210014, China) |
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| Abstract: | Objective] The aim of this study was to characterize the national regis- tered varieties selected from cotton regional trials in Yangtze River Valley （YaRV） in recent years. Method] Cotton cultivar classification and comprehensive evaluation index were set up based on national cotton registration standard. GGE biplot method was adopted to analyze the correlation of major breeding target characters of 53 national registered cotton varieties in cotton regional trials in YaRV during 1981-2012. According to the shift of check cultivars in cotton regional trials in the past, the cotton regional trial practice since 1981 was divided into five periods. The dynamic of cultivar type＇s proportion and the evaluation index scores was analyzed across the five periods. Result] There existed intricate interrelationship among cotton breeding target traits, which constrained it necessary to construct indices for com- prehensive evaluation of cotton varieties. The dynamic of cultivar types in the five periods indicated that type II varieties emerged since Simian 3 period and then its proportion decreased gradually; type Ⅲ varieties maintained a certain proportion in each period and kept on the rise overall; type Ⅳvarieties occupied the majority pro- portion of registered cultivars before 1993, but a minor proportion since Simian 3 period. On the other side, the change trend of the evaluation index demonstrated that the varieties registered before 2003 did not pass the qualified line at present. The peak scores appeared in the varieties registered during 2004-2008. The scores of the varieties registered after 2009 were only slightly over the qualified line. Conclusion] More attention should be paid to the improvement and evaluation of micronaire, so as to guide the simultaneous development of high yielding and fiber quality in cotton breeding and registration procedure in YaRV. |
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| Keywords: | Cotton （Gossypium hirsutum L ） GGE biplot Variety type classification The Yangtze River Valley （YaRV） |
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