披碱草属牧草生物学特性及农艺性状评价  

Evaluation of Biological Characteristics and Agronomic Traits in Elymus species

作　　者：贾振宇 米福贵 张跃华 孙娜 王雪婷 Jia Zhenyu;Mi Fugui;Zhang Yuehua;Sun Na;Wang Xueting(College of Grassland,Resources and Environment,Inner Mongolia Agricultural University/Key Laboratory of Grassland Resources,Ministry of Education P.R.of China/Key Laboratory of Forage Cultivation,Processing and High Efficient Utilization of Ministry of Agriculture,Hohhot,Inner Mongolia 010018,China;Inner Mongolia M·Grass Ecological Environment(Group)Co.,Ltd.,Hohhot,Inner Mongolia 010030,China)

机构地区：[1]内蒙古农业大学草原与资源环境学院/草地资源教育部重点实验室/农业农村部饲草栽培、加工与高效利用重点实验室,呼和浩特010018 [2]内蒙古蒙草生态环境(集团)股份有限公司,呼和浩特010030

出　　处：《草原与草业》2021年第4期8-12,21,共6页Grassland and Prataculture

基　　金：牧草与豆类作物育种以提高欧盟和中国蛋白质自给(2017YFE0111000);土默特平原苜蓿高效种植技术研究与示范(2014003048-05)。

摘　　要：以五份披碱草属牧草种质为材料,对其8个生物学特性及生物量进行研究分析,以期为新品种选育及种植利用提供依据。结果表明:供试材料农艺性状的表现存在较大变异,变异系数为6.55%~21.25%,其中节间长度、茎节数、花序长、叶片数量的变异系数较高,各性状在参试材料间差异显著;主成分分析结果显示,前3个主成分累积贡献率达80.92%,反映了总体数据的大部分信息;隶属函数分析表明,老芒麦新品系、圆柱披碱草在各供试材料中表现较优,是新品种选育和种植利用的优异种质资源。Eight biological characteristics and biomass of five species in Elymus L.were studied and analyzed in order to provide references for the new vanety breeding and cultivation.The results showed that the agronomic traits of tested materials were extensively variated,the coefficient of variation ranged from 6.55%to 21.25%.The internode length,stem nodes number,inflorescence length,and leaves number had higher coefficient of variation.The agronomic traits among the tested materials were significantly different.The principal component analysis showed that the cumulative contribution rate of the first three principal components reached 80.92%,reflecting most of the information of the overall data.The analysis of membership functions showed that the new hybrid of E.sibilicus and E.cylindricus performance better than the other three varieties,and was an excellent germplasm resource for the breeding and vtilization of Elymus.

关 键 词：披碱草属 农艺性状 生物学特性 隶属函数 综合评价 

分 类 号：S543.9[农业科学—作物学]