黑龙江农业科学Issue(5)：60-65,6.DOI:10.11942/j.issn1002-2767.2026.05.0060
华中樱嫁接苗表型多样性分析与评价
Analysis and Evaluation of Phenotypic Diversity in Grafted Seedlings of Cerasusconradinae
摘要
Abstract
Cerasusconradinae is an endemic ornamental species in China with high aesthetic value and breeding potential.Inorder to investigate the variation patterns and genetic diversity of phenotypic traits in grafted seedlings of C.conradinae,and to promote the selection and breeding of suitable varieties of C.conradinae in Southern China.This study selected 24 grafted seedlings from wild superior germplasms.By measuring phenotypic trait indicators and applying statistical methods such as mean comparison,analysis of variance(ANOVA),correlation analysis,and principal component analysis(PCA),a comprehensive evaluation of phenotypic diversity was conducted.The results showed significant differences among germplasms,with coefficients of variation ranging from 14.16％to 63.09％.Branch number and leaf number exhibited the highest variability,while leaf traits demonstrated strong stability.The Shannon-Wiener diversity index(H')ranged from 1.60 to 2.10,averaging 1.91,indicating rich genetic diversity in the tested germplasms.Correlation analysis revealed that plant height was significantly positively correlated with graft union diameter,leaf numbers,and other traits.PCA extracted four principal components with a cumulative contribution rate of 83.71％,representing plant growth vigor,leaf morphology,and internode lengthcharacteristics.Notably,the germplasm HB069 exhibited optimal performance in plant height,graft union diameterand leaf numbers,indicating that it has high breeding value.关键词
华中樱/嫁接苗/表型性状/多样性指数/相关性分析/主成分分析/种质评价Key words
Cerasusconradinae/grafted seedlings/phenotypic traits/diversity index/correlation analysis/principal component analysis/germplasm evaluation引用本文复制引用
曾昭佳,胡晓敏,叶小玲,彭敏,叶丽锋,廖仕力,何雪兰,张晓玲..华中樱嫁接苗表型多样性分析与评价[J].黑龙江农业科学,2026,(5):60-65,6.基金项目
韶关市科技计划项目(844008). （844008）
