Application of Statistic Analysis on the Selection of Quantitative Characteristics Listed in the DUS Test Guideline of Tagetes L.  

统计分析在筛选万寿菊DUS测试指南中的数量性状上的应用(英文)

作　　者：刘艳芳[1] 张建华[1] 杨晓洪[1] 王江民[1] 李彦刚[1] 陈海荣[2] 李向东[3] 张惠[1] 管俊娇[1] 

机构地区：[1]农业部昆明DUS测试中心,云南省农业科学院质量标准与检测技术研究所,云南昆明650205 [2]农业部上海DUS测试中心,上海市农业科学院农产品质量标准与检测技术研究所,上海201415 [3]云南省农业科学院农业环境资源研究所,云南昆明650205

出　　处：《Agricultural Science & Technology》2012年第9期2021-2023,2033,共4页农业科学与技术（英文版）

基　　金：Supported by Fund for Agro-scientific Research in the Public Interest(200903008-14);Chinese National 948 Program(2009-Z11)~~

摘　　要：[Objective] This paper researched how to use specific approach to select quantitative characteristics which would be listed in the DUS Test Guideline of Tagetes L. [Method] With the aid of statistic analysis, the uniformity, stability and correlation of 14 pre-selected characteristics were analyzed. [Result] The expression of peduncle length of terminal flower had low uniformity within a variety; the expres- sion of main stem thickness was not stable in continuous growing cycles; there were four pairs of quantitative characteristics which are （very） significantly correlated, namely, leaf length and leaf width, diameter of flower head and length of outer ligu- late floret, number of ligulate floret whorls and number of ligulate floret, leaf width and width of terminal leaflet of pinnate leaves. Based on the requirements of char- acteristic selection and the results of statistic analysis, five characteristics including peduncle length of terminal flower, thickness of the main stem, leaf width, length of outer ligulate floret and number of ligulate floret were deleted. [Conclusion] For the first time, this paper introduced the application of statistic analysis on the selection of quantitative characteristics.[目的]本文研究了如何使用特定的方法对列入万寿菊DUS测试指南中的数量性状进行筛选。[方法]利用统计分析对14个初选数量性状的一致性、稳定性及性状间相关性进行了研究。[结果]性状"末端小花花梗长度"的表达状态在同一品种内的一致性较低;性状"主茎粗细"的表达状态在连续生长周期间的稳定性较差;叶长和叶宽、花序直径和外轮舌状小花长度、舌状小花轮数和舌状小花数、叶宽和羽状复叶的末端小叶宽度这4对数量性状的表达状态呈现(极)显著相关。基于性状选择的要求和统计分析的结果,删除"末端小花花梗长度","主茎粗细","叶宽","外轮舌状小花长度"和"舌状小花数"五个性状。[结论]本文首次将统计分析方法应用到数量性状的筛选上。

关 键 词：DUS Test Guideline of Tagetes L. Quantitative characteristic Statisticanalysis 

分 类 号：S681.9[农业科学—观赏园艺]