贵州农业科学2026，Vol.54Issue(1)：13-21,9.DOI:10.3969/j.issn.1001-3601.2026.01.002
基于多层次加权评判法和聚类分析法的草珊瑚种质资源评价
Evaluation on Sarcandra glabra Germplasm Resources Based on Multi-level Weighted Evaluation and Cluster Analysis
摘要
Abstract
[Objective]The potential excellent Sarcandra glabra germplasm resources were screened by comprehensively evaluating S.glabra germplasm resources to provide a reference for breeding,development and utilization of improved S.glabra germplasm varieties.[Method]The agronomic traits(plant height,ground diameter,stem number,leaf length and leaf width),chlorophyll relative content index(SPAD value)and medicinal components(isofraxidin and rosmarinic acid)content of 30 S.glabra germplasm resources collected from Guangxi and surrounding areas were investigated and 30 S.glabra germplasm resources were comprehensively evaluated by multi-level analysis,weighted calculation algorithms and hierarchical cluster analysis(HCA).[Result]There were significant differences in phenotype and metabolism among 30 S.glabra germplasm resources.The variable coefficients of plant height,stem number and leaf area were 33.6%,43.8%and 30.2%respectively.The plant height of No.25 was 117.5 cm and 69.31%higher than the average population value(69.4 cm).The leaf area of No.10 was 68.7 cm2 and 1.53 times the average population value(45.0 cm2).There were obvious differences in isofraxidin content(0.008%-0.041%)and rosmarinic acid content(0.020%-1.375%).Total content(1.399%)of medicinal compositions in No.20 was 2.3 times the average population value(0.600%).The comprehensive score of No.22,No.24 and No.33 with good yield traits(plant height≥93.6 cm and stem number≥8.6)and better quality trait(total medicinal components content≥1.573%)was 0.756,0.732 and 0.748 respectively.30 S.glabra germplasm resources were clustered into four groups.9 S.glabra germplasm resources in Group IV with high-yield characteristics and high-quality potential could be used as the excellent materials in single-plant pedigree breeding of S.glabra.[Conclusion]The comprehensive evaluation method including multi-level weighted evaluation and clustering analysis can be used in comprehensive evaluation of S.glabra germplasm resources.Group IV with high-yield and high-quality traits should be used as the excellent materials in single-plant breeding of S.glabra.关键词
草珊瑚/种质资源/多层次分析法/加权计算法则/聚类分析/农艺性状/药用成分Key words
Sarcandra glabra/germplasm resources/multi-level analysis/weighted calculation rule/clustering analysis/agronomic trait/medicinal component分类
农业科技引用本文复制引用
李玉琼,张占江,李林轩,韦树根,梁文静,杨翠红,万凌云,翟勇进..基于多层次加权评判法和聚类分析法的草珊瑚种质资源评价[J].贵州农业科学,2026,54(1):13-21,9.基金项目
广西科技重大专项"肉桂等广西特色药材高质量生产关键技术及系列产品开发研究"(桂科AA22096021) （桂科AA22096021）
2024年科技先锋队"强农富民""六个一"专项行动(桂农科盟202411) （桂农科盟202411）
广西岐黄学者培养项目(GXQH202402) （GXQH202402）
广西中医药多学科交叉创新团队(GZKJ2305) （GZKJ2305）
