红花种质资源表型多样性分析  

Phenotypic Diversity Analysis of Safflower(Carthamus tinctorius L.)Germplasm Resources

作　　者：王沛琦[1] 胡学礼[1] 李雪蓉 胡尊红[1] 杨谨[1] 郭丽芬[1] 刘旭云[1] WANG Peiqi;HU Xueli;LI Xuerong;HU Zunhong;YANG Jin;GUO Lifen;LIU Xuyun(Industrial Crop Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650205, China;Nanjing Agricultural University, College of Economics and Management, Nanjing, Jiangsu 210095, China)

机构地区：[1]云南省农业科学院经济作物研究所,云南昆明650205 [2]南京农业大学经济管理学院,江苏南京210095

出　　处：《热带作物学报》2019年第6期1102-1107,共6页Chinese Journal of Tropical Crops

基　　金：云南省重大科技专项(生物医药)(No.2018ZF010-1);云南省农业科学院经济作物研究所青年基金(No.JZSQNJJ003)

摘　　要：以来自国内外的312份红花种质为材料,采用主成分分析与聚类分析,对6个主要表型性状进行多样性分析。结果表明:红花种质资源主要表型性状的遗传变异丰富。顶果球着粒数的多样性指数最高,其次是果球直径;单株种子产量的变异系数最大,其次是单株有效果球数。主成分分析表明,前3个主成分累计贡献率达78.30%,反映了6个性状的大部分信息。基于各种质间6个性状的差异,对312份红花种质进行聚类并划分为7大类群,第Ⅰ类群果球大、顶果球着粒数多,具有增产潜力;第Ⅲ类群综合表现最好,可作为高产育种材料;第Ⅵ类群籽粒大,可作为大粒型选育亲本;其余类群表现一般。该结果可为红花的有效利用及新品种选育提供科学依据。The phenotypic diversity of 6 major phenotypic traits was analyzed by principal component analysis and cluster analysis for 312 safflower germplasm resources from domestic and overseas. The results revealed that the genetic diversity of the major phenotypic traits in Safflower resources was abundant. The diversity index of the number of seeds in the top fruit was the highest, followed by the diameter of top fruit. The coefficient variation of the yield per plant was the highest, followed by the effective number of fruits per plant. The principal components analysis of 6 traits showed the first three principal components accounted for 78.30% accumulation contribution rate, reflecting most of the information of 6 traits. Based on the phenotypic difference of the 6 agronomic traits, the 312 safflower germplasm resources were divided into 7 groups. The resources of the first group had the largest fruits ball and seed number of top fruits,which had the potential for increasing yield. The third group had the best comprehensive performance and could be used as the material for high-yield breeding. The sixth group had large grains which could be used as the large-grain selection parent. The performance of other groups was average. This study would provide a scientific information for the effective utilization and breeding of safflower germplasm resources.

关 键 词：红花 种质资源 表型性状 遗传多样性 

分 类 号：S32[农业科学—作物遗传育种]