资源开发与利用NO.06202396饲料研究FEEDRESEARCH不同紫花苜蓿品种在陇东地区的生产性能和营养价值评价张兰宋谦*马淑梅余小亮王纯喜杨晓(甘肃省平凉市农业科学院,甘肃平凉744000)摘要:试验旨在明确不同紫花苜蓿(Medicagosativa)品种在陇东地区的生产性能和营养价值。试验连续两年测定11个紫花苜蓿品种的生产性能和营养品质,运用灰色关联度法对紫花苜蓿品种的生产性能和营养价值进行综合评价。结果显示,甘农6号连续两年的株高最高(65.18cm);中兰1号的茎粗表现最高(1.905mm);甘农3号的茎叶比最低(0.89);阿尔冈金连续两年的干草产量最高;各品种的营养成分分析结果显示,阿迪娜的粗蛋白(24.35%)和干物质(89.25%)含量最高;苜蓿王的粗脂肪(2.49%)含量最高;甘农5号的钙含量(1.90%)和粗灰分含量(10.29%)最高;苜蓿王的酸性洗涤纤维(25.60%)和中性洗涤纤维(29.20%)最低;中兰1号的磷含量(0.28%)和相对饲料价值(199.0)均表现最高。研究表明,苜蓿王、中兰1号、阿尔冈金、阿迪娜、甘农5号和甘农3号的生产性能优、营养价值高,综合性状突出,适宜在陇东地区推广应用。关键词:紫花苜蓿;生产性能;营养品质;灰色关联度分析中图分类号:S816文献标识码:A文章编号:1002-2813(2023)06-0096-05Doi:10.13557/j.cnki.issn1002-2813.2023.06.020EvaluationofproductionperformanceandnutritionalvalueofdifferentMedicagosativavarietiesinLongdongregionZHANGLanSONGQianMAShu-meiYUXiao-liangWANGChun-xiYANGXiaoAbstract:TheexperimentwastodeterminetheproductionperformanceandnutritionalvalueofdifferentMedicagosativavarietiesinLongdongregion.Theproductionperformanceandnutritionalqualityof11alfalfavarietiesweremeasuredfortwoconsecutiveyears,andtheproductionperformanceandnutritionalvalueoftestedalfalfavarietieswerecomprehensivelyevaluatedbyusinggreycorrelationdegreemethod.TheresultsshowedthattheplantheightofGannongNo.6wasthehighest(65.18cm)fortwoconsecutiveyears.ThestemdiameterofZhonglanNo.1wasthehighest(1.905mm).ThestemandleafratioofGannongNo.3wasthelowest(0.89).Algonquinhadthehighesthayyieldfortwoconsecutiveyears.TheresultsofnutrientcompositionanalysisofvariousvarietiesshowedthatAdinahadthehighestannualmeancontentofcrudeprotein(24.35%)anddrymatter(89....