农业科学研究2024，Vol.45Issue(3)：7-12,25,7.
14份老芒麦种质资源综合评价
Comprehensive Evaluation of 14 Elymus sibiricus Germplasm Resources
摘要
Abstract
The aim of this study was to objectively evaluate the production performance and quality of Elymus sibiricus germplasm resources.In this study,12 production performance indicators and 5 nutritional composition indicators of 14 Elymus sibiricus germplasms were measured,and statistical analyses were carried out using coefficients of variation,correlation,and principal component analysis,with comprehensive evaluation conducted by membership function analysis.The results showed that the coefficients of variation of 14 production performance and nutritional components,including stem diameter,node number of stem,seed width,thousand-grain weight,plant height,number of tillers,the ratio of fresh to dry mass,leaf-to-stem ratio,fresh yield,hay yield,seed yield,content of crude protein,ash content,and content of ether extract,were all greater than 10%.The maximum coefficient of variation of hay yield was 31.75%,while the minimum coefficient of variation of neutral detergent fiber was 3.38%.The number of tillers was significantly correlated with fresh grass yield,while the leaf-to-stem ratio was significantly correlated with the content of ether extract,and various indicators would restrict each other.Principal component analysis classified 18 indicators into six principal components,with a cumulative contribution rate of 86.65%.E4,E5,E7,and E10,which exhibited the best overall performance,were selected based on the comprehensive evaluation using membership function analysis,which could be used as candidate parents or core germplasms for breeding.关键词
老芒麦/农艺性状/营养成分/主成分分析/综合评价Key words
Elymus sibiricus/agronomic traits/nutritional components/principal component analysis/comprehensive assessment分类
农业科技引用本文复制引用
马小梅,杨小霞,雍佳熹,何彩虹,伏兵哲,高雪芹..14份老芒麦种质资源综合评价[J].农业科学研究,2024,45(3):7-12,25,7.基金项目
宁夏牧草育种专项(2019NYYZ0403) （2019NYYZ0403）
宁夏高等学校一流学科建设(草学学科)项目(NXYLXK2017A01) （草学学科）
