36个燕麦品种不同部位养分分布格局  

Nutrients distribution patterns in different parts of 36 oat varieties

作　　者：王桃[1] 徐长林[2] 姜文清[1] 周志宇[1] 

机构地区：[1]兰州大学草地农业科技学院农业部草地农业生态系统学重点开放实验室,甘肃兰州730020 [2]甘肃农业大学草业学院,甘肃兰州730070

出　　处：《草业科学》2010年第8期107-113,共7页Pratacultural Science

基　　金：国家重点基础研究发展规划项目资助(973项目)(2007CB108903);国家科技支撑计划资助项目(2007BAD80B05);国家自然科学基金资助项目(30800801)

摘　　要：分析了天祝高寒草甸区36种不同饲用燕麦(Avena sativa)叶片、籽粒和茎秆中的水分、灰分、粗蛋白、可溶性糖、粗脂肪、磷、钙、粗纤维、中性纤维和酸性纤维含量的分布特征。结果显示:36个燕麦品种叶片中水分、灰分、粗蛋白、可溶性糖和钙含量显著高于籽粒和茎秆(P<0.05),平均值分别为6.36%、9.28%、19.82%、13.71%和0.25%;籽粒中粗脂肪和磷含量显著高于叶片和茎秆(P<0.05),平均值分别为:4.48%和0.25%;茎秆中粗纤维、中性洗涤纤维和酸性洗涤纤维含量显著高于叶片和种子(P<0.05),平均值分别为35.62%、65.18%和56.40%。总之,36种燕麦不同部位的营养价值高低依次为叶片>籽粒>茎秆。The contents of moisture,ash,crude protein,water-soluble sugar,ether extract,calcium,phosphorus,crude fiber,neutral detergent fiber and acid detergent fiber in leaf,seed and stem of 36 varieties of forage oats were studied in alpine meadow area of Tianzhu County.The results showed that the content of moisture,ash,crude protein,soluble sugar and calcium in leaf were 6.36%,9.28%,19.82%,13.71% and 0.25% respectively,which were significantly（P0.05）higher than seed and stem.The ether extract and phosphorus contents in seed were 4.48% and 0.25% respectively,which significantly（P0.05） higher than that in leaf and stem.The crude fiber,neutral detergent fiber and acid detergent fiber contents in stems were 35.62%,65.18% and 56.40% respectively,which were significantly（P0.05）higher than that of leaf and seed.It could be concluded that the order of nutrition value of different parts were leaf seed stem.

关 键 词：高寒草甸 燕麦 不同部位 养分分布格局 

分 类 号：S512.6[农业科学—作物学] Q945.1[生物学—植物学]