水稻新品种DUS测试数量性状特异性统计分析判别研究  

Study on the Statistical Assessment of Distinctness of Quantitative Characteristics in DUS Testing of the New Rice Varieties

作　　者：徐振江[1] 刘洪[1] 李春兰[1] 李之林[1] 任永浩[1] 

机构地区：[1]华南农业大学农学院,广东广州510642

出　　处：《华南农业大学学报》2008年第1期6-9,共4页Journal of South China Agricultural University

基　　金：农业部植物新品种保护办公室2004年和2005年度水稻DUS测试基金

摘　　要：对3个申请品种与其近似品种的10个主要数量性状连续2年的测试数据进行统计分析,结果表明:申请品种与其近似品种在指南中处于不同分级范围的数量性状,如果该性状均值相差相对较小,可能实际没有差异;申请品种与其近似品种在指南中处于同一个分级范围的数量性状,如果该性状均值相差相对较大,有可能存在显著差异;数量性状特异性统计分析判别是除指南判别以外的重要判别依据.Ten main quantitative characteristics of 3 candidate varieties and their similar ones were statistically analysed in 2 continuous years. If the quantitative characteristic of the candidate variety and its similar one is too close, there may actually be no distinctness on the quantitative characteristic, while the classifications of the characteristic of the two varieties are different in DUS test guideline. However, if the difference of the average value of the quantitative characteristic between the candidate variety and its similar one is comparatively big, there may be significant distinctness on the quantitative characteristic, while the classifications of the quantitative characteristics of the two varieties are the same in DUS test guideline. Besides the criteria of DUS test guideline, statistical analysis should be an important method to assess the distinctness of the quantitative characteristics of new rice varieties.

关 键 词：水稻新品种 DUS测试 数量性状 特异性 判别 

分 类 号：S311[农业科学—作物栽培与耕作技术] S503.7[农业科学—农艺学]