草业学报2013，Vol.22Issue(1)：38-45,8.
青藏高原地区不同垂穗披碱草居群营养品质研究
A study on forage nutritional quality of Elymus nutans from different populations in the Qinghai-Tibet Plateau
摘要
Abstract
To study forage nutritional quality of Elymus nutans from different populations in the Qinghai-Tibet Plateau, production traits, crude protein (CP), water soluble carbohydrate (WSC), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of 45 E. nutans populations were investigated. There were significant differences in yield, CP, WSC, NDF and ADF between populations, and the four parameters were reccorded with an almost normal distribution. Fresh grass yield was 2 062. 59 - 18 597. 73 kg/hm2, dry grass yield was 529.42-4 682. 60 kg/hm2, CP was 13. 88%-23. 92%, WSC was 1. 59% -6. 03%, NDF was 57. 34%-64. 97% and ADF was 35. 06%-47. 23%. Coefficients of variation of yields were all over 62% and that of WSC was 31. 19%. There were significant negative correlations between CP and both NDF and ADF, significant positive correlations between NDF and ADF, and significant negative correlations between WSC and NDF, and between yields and ADF. Based on these correlations, five E. nutans populations with high CP and WSC but low NDF and ADF were selected for future work.关键词
青藏高原/垂穗披碱草居群/产量/营养品质Key words
Qinghai -Tibet Plateau/ Elymus nutans population/ yield/ nutritional quality分类
农业科技引用本文复制引用
赵玉宇,黄德君,毛祝新,聂斌,傅华..青藏高原地区不同垂穗披碱草居群营养品质研究[J].草业学报,2013,22(1):38-45,8.基金项目
国家重点基础研究发展计划(2007CB108903)资助. （2007CB108903）
