摘要
通过对南繁条件下150份从国内外引进的大豆资源进行主成分分析和聚类分析,以确定南繁条件下大豆产量形成的关键影响因子,并筛选有高产潜质的大豆材料。结果表明,大豆单株产量与单株荚数、单株粒数、生物产量、有效分枝数、百粒重、生育期、株高7个性状均显著相关;选取方差累计贡献率为86.640%的前3个主成分可有效评价这批大豆材料;系统聚类可将参试的150份大豆资源分为9类;7个产量相关性状指标中,对不同品种单株产量影响差异的大小依次为单株荚数>单株粒数>生物产量>有效分枝数>百粒重>生育期>株高,7个性状可被分为3类,分别为产量性状因子、熟期因子和分枝因子等3个综合指标;综合指标间的聚类分析表明,可选择单株粒数、有效分枝数和百粒重3个指标评价大豆材料的高产潜力。研究结果可为大豆资源的利用提供参考,150份大豆材料各类群性状之间的差异较明显,可指导大豆高产育种,高产选育过程中应注重选择单株粒数、有效分枝数和百粒重较高的品系。
To determine the effect of key factors on soybean yield during winter nursing and screen out soybean materials for high-yielding,150 soybean varieties introduced from Japan,America and other countries were planted and researched by principal component analysis （PCA） and hierarchical cluster analysis （HCA） in Sanya,Hainan,China. The results showed that single plant yield of soybean was significantly related to 7 traits that were pods per plant,seeds per plant,plant mass,valid branch number,100-seed weight,growth period,plant height. Seven indicators reflecting soybean varieties might be represented by three principal components （cumulative contribution rate of 86.640%）. The research results can offer reference for the use of soybean materials. Seven major agronomic characters related to single plant yield were sequenced： pods per plant〉 seeds per 〉plant plant mass 〉valid branch number〉 100-seed weight〉 growth period〉 plant height,the seven traits that were related to yield were classified into 3 categories of principal components which were yield characters factor,mature period factor and branches factor. Selecting varieties with high seeds per plant,high valid branch number and high 100-seed weight was necessary in high yield breeding of soybean. 150 soybean varieties were classified into 9 clusters,which had obvious feature,that could guide high yield breeding of soybean.
作者
符小发
高强
任海龙
路子锋
王天地
陈积豪
严勇亮
FU Xiao-fa;GAO Qiang;REN Hai-long;LU Zi-feng;WANG Tian-di;CHEN Ji-hao;YAN Yong-liang(Hainan Sanya Crop Breeding Trial Centre,Xinjiang Academy of Agricultural Sciences,Sanya 572014,China;Institute of Crop Germplasm Resource,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)
出处
《广东农业科学》
CAS
2018年第4期6-13,共8页
Guangdong Agricultural Sciences
基金
三亚市农业科技创新项目(2013NK28)
新疆维吾尔自治区公益性科研院所基本科研业务费(KYGY2016121)
新疆维吾尔自治区科技支疆计划(指令性)项目(201491141)
三亚市院地科技合作项目(2016YD33)
关键词
大豆
农艺性状
主成分分析
聚类分析
南繁
单株产量
soybean
agronomic traits
principal component analysis
cluster analysis
winter nursing
single plant yield
