摘要
为了鉴定羊草品质性状间的相关关系,试验对42份羊草材料的22个品质性状检测分析,并进行一般描述统计、遗传变异、相关性及主成分分析.结果显示,在参试羊草各品质性状中,粗蛋白、钙、木质素和糖类含量的变异系数较大,分别为13％、25％、27％和39％.对22个品质性状进行主成分提取发现,前3个主成分的累积贡献率达到90.196％,分别为羊草的饲用价值、微量元素及粗蛋白成分.研究表明,羊草的粗蛋白、钙、木质素和糖类等性状在品种遗传选育进程中有较大的改良空间,而消化率及能量品质相关性状难以得到遗传改良.
Abstract
In order to identify the correlations among quality traits of Leymus chinensis,the experiment conducted a detection and analysis of 22 quality traits in 42 samples of Leymus chinensis.General descriptive statistics,genetic variation,correlation,and principal component analysis were performed.The results showed that among the quality traits of the tested Leymus chinensis,crude protein,calcium,lignin,and sugar content had relatively large coefficients of variation,which were 13％,25％,27％,and 39％,respectively.Principal component analysis of the 22 quality traits revealed that the cumulative contribution rate of the first three principal components reached 90.196％,representing the forage value,trace elements,and crude protein components of Leymus chinensis,respectively.The study indicates that there is significant room for improvement in traits such as crude protein,calcium,lignin,and sugar content of Leymus chinensis in the process of genetic breeding of varieties.However,traits related to digestibility and energy quality are difficult to improve through genetic means.
基金项目
中央财政林业科技推广示范项目(黑[2023]TG11号)
黑龙江省省属科研业务费项目(CZKYF2022-1-B012)
黑龙江省农业科技创新跨越工程农业科技基础创新优青项目(CX22YQ14)
国家科技期刊平台
NSTL
万方数据