北方杂交粳稻品种资源核心样品的建立与评估  

Establishment and Estimate of Key Samples of Variety Resources of Northern

作　　者：王岩[1] 华泽田[1] 薛瑞雪[2] 

机构地区：[1]辽宁省农科院稻作研究所,辽宁沈阳110101 [2]兴城市农业技术推广中心,辽宁兴城125100

出　　处：《垦殖与稻作》2003年第1期8-10,共3页Reclaiming and Rice Cultivation

基　　金：国家863资助项目(2001AA241014)

摘　　要：对北方杂交粳稻品种资源中的129份粳稻品种的多个农艺性状通过系统聚类进行分组。每一组中按比例随机选取样品材料构成核心样品。将核心样品及其各项性状指标构成的数据矩阵视为一个灰色系统,每个品种看作系统的一个因素,根据育种目标构造出的“参考品种”之间的关联度大小,评估各核心样品被推荐为杂交亲本时的优劣次序。Selected129varieties of japonica rice in Northern China and devided them into groups through system sorting.Randomly sampled each group and looked on the number matrix made by the key samples and their character parameter as a grey theory,Looked on one variety as one factor of the system,according to the degree of grey association among the reference varieties based on breeding goal,evaluated the quality order of the samples as filial parents.

关 键 词：杂交粳稻 品种资源 核心样品 灰色关联度分析 

分 类 号：S511.220.2[农业科学—作物学]