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对31个苎麻组合(品种)的5个产量构成因素作成份和聚类分析有3个主成份对变量的贡献达87.27％。31个组合(品种)被分为5类,组合、品种以及高产优质组合均可通过聚类分析相互分组。产量构成因素可归纳为单蔸生产力、出麻率和皮厚因子。主成份和聚类分析可为杂交亲本选配和组合筛选提供较为客观的依据。
Five constituent components of 31 ramie combinations (cultivars) were grouped into three components, and their contribution to the variables was 87.27%. 31 combinations (breeds) are grouped into 5 categories, and combinations, breeds and high-yielding combinations can be grouped by cluster analysis. Yield components can be summarized as a single crop productivity, hemp yield and thickness factor. The principal component and cluster analysis can provide more objective evidence for hybrid parental selection and combinatorial screening.