摘要
为了更好地利用鲜食春大豆种质资源,发掘潜在优异自然变异,丰富鲜食春大豆种质,本研究对45份鲜食春大豆种质资源的10个描述性性状和11个数值型农艺性状进行了变异分析、相关性分析、主成分分析、聚类分析及综合评价,并对大豆花叶病毒的抗病性和口感品质等进行鉴定。结果表明:变异性分析结果显示,11个数值型性状间存在着丰富的变异,变异系数为2.77%~31.57%,其中底荚高度变异系数最大,出仁率变异系数最小。相关性分析表明,株高与有效分枝数、主茎节数和生育期呈极显著正相关,有效分枝数与主茎节数呈极显著正相关,生育期与底荚高度呈极显著正相关,主茎节数与百粒鲜重呈极显著负相关。利用离差平方和法将45份种质聚为四大类群,其中第Ⅱ类群综合性状最好。抗病性分析表明,对SMV SC3株系表现为抗病性的种质资源有37份,对SC7株系表现为高抗的种质资源有33份,对SC3和SC7株系均表现抗病的材料有20份。主成分分析表明,株型因子、生育期因子、产量因子、出仁率因子等主成分累计贡献率达到66.65%。根据主成分值与其对应特征根值的贡献率计算各品种的主成分综合得分,将综合得分靠前的种质资源与产量性状和抗病性等进行综合分析,鉴定得到JS-19、JS-28、JS-32、JS-33等优异种质资源,可作为鲜食春大豆新品种选育的骨干亲本,在育种上加以创新利用。
To make better use of vegetable soybean germplasms,discover potential excellent natural variation,and enrich fresh spring soybean germplasms,this study analyzed ten descriptive traits and eleven characteristics of 45 fresh spring soybean germplasms.The variation analysis,correlation analysis,principal component analysis,cluster analysis and comprehensive evaluation were carried out,and the disease resistance and taste quality were identified.The results of variability analysis showed that there were abundant variations among the eleven numerical traits,with the number of variations ranging from 2.77%to 31.57%.Among them,the coefficient of variation of bottom pod height was the largest,and the coefficient of variation of kernel rate was the smallest.Correlation analysis showed that plant height was significantly positively correlated with effective branches number,the number of main stem nodes,and the growth period.The number of effective branches was significantly positively correlated with the number of main stem nodes.The growth period and base pod height were significantly positively correlated.The number of main stem nodes,and the 100-seed fresh weight showed a very significant negative correlation.The 45 accessions were grouped into four major groups by the method of the sum of squared deviations,among which group II had the best comprehensive traits.The disease resistance analysis showed that 37 germplasms showed resistance to SMV SC3 strains,33 germplasms showed high resistance to SC7 strains,and 20 germplasm showed resistance to both SC3 and SC7.The principal component analysis showed that the cumulative contribution rate of principal components such as plant type factor,growth period factor,yield factor,and kernel rate factor reached 66.65%.According to the contribution rate of the principal component value and its corresponding characteristic root value,the principal component comprehensive score of each variety was calculated,and the germplasms with the highest comprehensive score,yield traits,and dise
作者
黎松松
赖建军
张红梅
崔晓艳
刘晓庆
陈新
朱月林
陈华涛
LI Song-song;LAI Jian-jun;ZHANG Hong-mei;CUI Xiao-yan;LIU Xiao-qing;CHEN Xin;ZHU Yue-lin;CHEN Hua-tao(College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China;Institute of Industrial Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China;College of Life Sciences and Food Engineering,Huaiyin Institute of Technology,Huai′an 223003,China)
出处
《大豆科学》
CAS
CSCD
北大核心
2022年第4期385-396,共12页
Soybean Science
基金
江苏省农业科技自主创新资金[CX(20)2007]
江苏高校优势学科建设工程资助项目(PAPD)。
关键词
鲜食春大豆
表型鉴定
聚类分析
主成分分析
综合评价
fresh spring soybean
phenotyping
cluster analysis
principal component analysis
comprehensive evaluation
