福建农业学报2024，Vol.39Issue(10)：1130-1139,10.DOI:10.19303/j.issn.1008-0384.2024.10.003
新引进140份粳稻资源表型性状的多样性分析及综合评价
Diversity and Phenotypes of 140 Newly Introduced Oryza sativa Japonica Germplasms
摘要
Abstract
[Objective]Genetic diversity and phenotypes of 140 newly introduced Oryza sativa Japonica were studied and organized for germplasms collection and breeding selection.[Method]On the 140 germplasms,10 phenotypic traits were classified by variations ondistribution,types,geneticdiversity,correlation,clustering,andprincipalcomponents.[Results]With a few exceptions,the 10 phenotypic traits was mainly intermediate type ranging 6.87%-36.86%on the coefficients of variation.The panicle count was the highest and the grain length the lowest types;while the effective panicle count the greatest and the grain shape the least on genetic diversity index that varied from 1.87 to 2.07.The number of panicle grains of the germplasms correlated positively with the entire growth period,plant height,and panicle length,but negatively with the effective panicle rate and setting rate.Significant differences in the phenotypic traits were found of the Japonica rice in 5 taxa varying in numbers for each taxon reflecting a rich genetic diversity.Four principal components in the phenotypes accounting for 77.42%of total were extracted.The top 10 germplasms with the highest comprehensive evaluation D values were Dangyu 5,Okumura Xue,Zhongdafei,Zhonghua 15,Yunleng 22,BG1,Nonghuhe,Bigeng 42,Xingtu,and G Zhenshan 9713.[Conclusion]Ten Japonica rice germplasms with desirable overall agronomic traits and yield potential were selected from 140 varieties for a broadened collection.关键词
粳稻/表型/多样性/综合评价Key words
Japonicarice/phenotype/diversity/comprehensive evaluation分类
农业科技引用本文复制引用
江川,朱业宝,陈立喆,李清华,王金英,张海峰..新引进140份粳稻资源表型性状的多样性分析及综合评价[J].福建农业学报,2024,39(10):1130-1139,10.基金项目
福建省科技计划公益类专项(2021R1023005) （2021R1023005）
福建省农业高质量发展超越"5511"协同创新工程项目(XTCXGC2021019-SDS01) （XTCXGC2021019-SDS01）
福建省省级种质资源保护单位建设专项(ZYBHDWZX20003) （ZYBHDWZX20003）
