6个燕麦品种在昂仁县的生产性能及饲草品质比较  

Comparison of crop yield and forage quality of six oat varieties in Angren County,Shigatse

作　　者：吴海艳 曲尼 曲珍 同桑措姆 达娃卓嘎 德央 尼玛卓嘎 刘昭明 马玉寿[1] WU Hai-yan;QU Ni;QU Zhen;Tongsangcuomu;Dawazhuoga;Deyang;Nimazhuoga;LIU Zhao-ming;MA Yu-shou(Academy of Animal Science and Veterinary Science,Qinghai University,Xining 810016,China;Shigatse Grassland Workstation,Shigatse 857000,China;Heilongjiang Grassland Station,Harbin 150086,China)

机构地区：[1]青海大学畜牧兽医科学院,青海西宁810016 [2]日喀则市草原工作站,西藏日喀则857000 [3]黑龙江省草原站,黑龙江哈尔滨150086

出　　处：《草业学报》2022年第4期72-80,共9页Acta Prataculturae Sinica

基　　金：2019年度西藏自治区自然科学基金[XZ 2019ZR G-112(Z)]资助

摘　　要：以6个燕麦品种为材料,用主成分分析法对其农艺性状、生产性能、营养品质及饲用价值共25个指标进行综合评价,以期筛选出适宜在日喀则昂仁县种植推广的兼具较高生产性能和品质的燕麦品种。结果表明:6个品种中除青海444能进入蜡熟期外,其余品种均处于乳熟期,且甜燕麦和青引1号株高达147 cm以上,显著高于其余品种(P<0.05);甜燕麦茎粗为6.39 mm,与青海444、加燕2号、青引1号无显著差异(P>0.05),但显著高于白燕2号和青引2号(P<0.05);6个品种鲜重和干重均无显著差异(P>0.05),甜燕麦干草产量最高(18420.13 kg·hm^(-2)),青引2号干草产量最低(13617.96 kg·hm^(-2));6个燕麦品种的粗蛋白含量为5.66%~11.59%,粗脂肪含量为2.94%~3.50%,相对牧草质量最高的是青引2号,为174.76。主成分分析提取到4个主成分,累积贡献率91.78%。根据主成分综合得分排序,甜燕麦得分最高,为2.37。因此,最适宜在昂仁县推广种植的兼顾生产性能和饲草品质的燕麦品种为甜燕麦。In this research six oat(Avena sativa)varieties(Baiyan No.2,Qinghai 444,Qingyin No.1;Qingyin No.2,Jiayan No.2,and sweet oat)were studied and 25 indexes of their agronomic traits,crop yields and nutritional quality were collectively evaluated by principal component analysis,in order to select suitable oat varieties with high crop yield and forage quality for farmer use in Angren County,Shigatse.It was found that among the six varieties evaluated,Qinghai 444 reached the wax-ripening grain development stage at harvest,while all other varieties were in the milk-ripening stage.Sweet oat and Qingyin No.1 both exceeded 147 cm in height and were significantly taller(P<0.05)than the other four varieties.The stem diameter of sweet oat(6.39 mm),did not differ significantly(P>0.05)from Qinghai 444,Jiayan No.2 and Qingyin No.1,but was significantly(P<0.05)larger than Baiyan No.2 and Qingyin No.2.There was no significant difference in fresh weight or dry weight among the six varieties(P>0.05).Sweet oat had the highest hay yield(18.42 t·ha^(-1)),and Qingyin No.2 had the lowest hay yield(13.62 t·ha^(-1)).The crude protein content of the six oat varieties ranged from 5.66% to 11.59%,and the crude fat content ranged from 2.94%to 3.50%.Qingyin No.2 had the highest relative forage quality,with values of 174.76,respectively.In principal component analysis,the first four components accounted for 91.78% of the data variation.In the multivariate evaluation,sweet oats had the highest overall score of 2.37,and is therefore recommended as the most suitable oat variety of those tested for both crop yield and forage quality in Angren County.

关 键 词：燕麦 昂仁县 生产性能 饲草品质 

分 类 号：S544.9[农业科学—作物学]