热带作物学报2024，Vol.45Issue(4)：712-721,10.DOI:10.3969/j.issn.1000-2561.2024.04.007
266份木薯种质资源农艺性状分析评价
Analysis and Evaluation of Agronomic Traits of 266 Cassava Germplasm Resources
摘要
Abstract
Eight main agronomic traits were statistically analyzed using cassava germplasm resources.The result showed that the data for the eight agronomic traits were normally distributed,with the coefficients of variation ranging from 7.2%to 46.9%.The coefficient of variation for starch yield was 46.9%and the coefficient of variation for the dry matter rate was 7.2%.Correlation analysis showed that there was a degree of significant positive correlation between the dif-ferent traits,with a highly significant positive correlation between weight of fresh tuberous root per plant and stem di-ameter.Principal component analysis combined eight traits into three main components.The cumulative contribution rates in each year amounted to 92.55%and 93.67%,respectively.The first principal components were weight of fresh tuberous root per plant,fresh tuberous root yield,starch yield and dry tuberous root yield.The second principal compo-nents were starch content and dry matter.Cluster analysis suggested that the resources could be divided into four groups in each year at the Euclidean distance of 6.0.Group Ⅱ had excellent performances in weight of fresh tuberous root per plant,fresh tuberous root yield,starch yield and dry tuberous root yield,which could be preferred as parental materials for new cassava varieties selection and breeding of high yield and good quality.关键词
木薯/种质资源/农艺性状/相关性分析/主成分分析/聚类分析Key words
cassava/germplasm resources/agronomic traits/correlation analysis/principal component analysis/cluster analysis分类
农业科技引用本文复制引用
黄渝岚,李艳英,周佳,劳承英,周灵芝,韦本辉,李素平,申章佑..266份木薯种质资源农艺性状分析评价[J].热带作物学报,2024,45(4):712-721,10.基金项目
国家木薯产业技术体系项目(No.CARS-11) （No.CARS-11）
广西农业科学院稳定资助科研团队项目(桂农科2021YT056). （桂农科2021YT056）
