鹅观草生产性能和营养成分综合评价  

Evaluation of Roegneria kamoji production performance and nutritional quality

作　　者：宋文学 黄薇 王旭成 王琴 王星 王晶[1] 高雪芹[1] 伏兵哲[1,2] SONG Wenxue;HUANG Wei;WANG Xucheng;WANG Qin;WANG Xing;WANG Jing;GAO Xueqin;FU Bingzhe(College of Agriculture,Ningxia University,Yinchuan 750021,Ningxia,China;Ningxia Grassland and Animal Husbandry Engineering Technology Research Center,Yinchuan 750021,Ningxia,China)

机构地区：[1]宁夏大学农学院,宁夏银川750021 [2]宁夏草牧业工程技术研究中心,宁夏银川750021

出　　处：《草业科学》2023年第3期752-760,共9页Pratacultural Science

基　　金：宁夏回族自治区重点研发计划项目(2021BBF02003);宁夏回族自治区农业育种专项(2019NYYZ0403)。

摘　　要：为了筛选出具备优良生产性能和营养品质的鹅观草(Roegneria kamoji)种质,本研究以18份不同属地的鹅观草为材料,测定其相关指标,运用灰色关联度分析进行综合评价。结果表明,银川E4、绥化E12、佳木斯E11、七台河E8的鲜草产量以及绥化E12、呼和浩特E13、佳木斯E11的干草产量较大,可作为追求高产草量的理想材料;绥化E12粗蛋白含量高,中性洗涤纤维含量低,营养品质好;绥化E12相对饲喂价值高,其次是银川E18和七台河E9;锡林郭勒E2茎秆最为粗壮(P<0.05),可能在抗倒伏能力上有一定的优势。灰色关联度分析表明,单株种子产量、分蘖数目、鲜草产量、粗蛋白在鹅观草种质资源综合评价系统中占权重最大,可作为鹅观草种质筛选时的关键性状;绥化E12、银川E18、佳木斯E11、银川E4、呼和浩特E13、七台河E8与理想品系关联系数最大,综合表现好,可作为品种改良和新品种培育的理想材料。Performance and nutritional quality indicators of 18 germplasm resources were comprehensively evaluated using gray relational analysis to select the Roegneria kamoji germplasm with excellent performance and nutritional quality.The results showed that the Yinchuan E4,Suihua E12,Jiamusi E11,and Qitaihe E8 fresh yield,and Suihua E12,Hohhot E13,and Jiamusi E11 hay yield were higher than those of the other germplasm materials.Therefore,they can be used as materials for increased grass yield.Suihua E12 had high crude protein content,low acid detergent fiber content,and excellent nutritional quality.Suihua E12 had the highest relative feeding value,followed by Yinchuan E18 and Qitaihe E9,compared with those of other germplasm.Xilingol E2 had the strongest stem and lodging resistance(P<0.05).Based on the gray correlation analysis in the comprehensive evaluation of the production performance and nutritional quality of R.kamoji,can be used as key traits in the evaluation and selection of R.kamoji varieties.Suihua E12,Yinchuan E18,Jiamusi E11,Yinchuan E4,Huhehaote E13,and Qitaihe E8 had the highest correlation coefficients with standard strains and could be used for the improvement and breeding of new R.kamoji varieties.

关 键 词：鹅观草 营养品质 生产性能 灰色关联度分析 产量 

分 类 号：S543.2[农业科学—作物学]