李玉珠,吴芳,师尚礼,白小明.河西走廊13个引进紫花苜蓿品种生产性能和营养价值评价[J].干旱地区农业研究,2019,37(5):119~129
河西走廊13个引进紫花苜蓿品种生产性能和营养价值评价
Evaluation on production and nutritional value of 13 introduced alfalfa cultivars in Hexi corridor of Gansu Province
  
DOI:10.7606/j.issn.1000-7601.2019.05.18
中文关键词:  紫花苜蓿  引进品种  生产性能  营养价值  灰色关联度分析
英文关键词:Alfalfa  introduced cultivars  production performance  nutritional value  grey correlation degree analysis
基金项目:农业部公益行业(农业)科研专项课题(201403048-8);国家牧草产业体系(CARS-34)
作者单位
李玉珠 Pratacultural College, Gansu Agricultural UniversityKey Laboratory of Grassland Ecosystem, Ministry of EducationSino-U.S.Centers for Grazing Land Ecosystem Sustainability, Lanzhou, Gansu 730070, China 
吴芳 Pratacultural College, Gansu Agricultural UniversityKey Laboratory of Grassland Ecosystem, Ministry of EducationSino-U.S.Centers for Grazing Land Ecosystem Sustainability, Lanzhou, Gansu 730070, China 
师尚礼 Pratacultural College, Gansu Agricultural UniversityKey Laboratory of Grassland Ecosystem, Ministry of EducationSino-U.S.Centers for Grazing Land Ecosystem Sustainability, Lanzhou, Gansu 730070, China 
白小明 Pratacultural College, Gansu Agricultural UniversityKey Laboratory of Grassland Ecosystem, Ministry of EducationSino-U.S.Centers for Grazing Land Ecosystem Sustainability, Lanzhou, Gansu 730070, China 
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中文摘要:
      以引进到甘肃河西走廊地区的13个紫花苜蓿品种先牧不倒翁、先牧抗冻星、巨能Ⅱ、巨能Ⅶ、前景、WL319HQ、WL366HQ、WL363HQ、WL354HQ、WL298HQ、WL440HQ、WL353LH和WL326GZ作为试验材料,对1龄、2龄和3龄供试紫花苜蓿品种每茬草初花期的株高、干草产量和叶茎比进行测定,对其干物质、粗蛋白、中性洗涤纤维、酸性洗涤纤维、钙和磷营养性状指标进行分析,并采用灰色关联度法对供试紫花苜蓿品种的生产性能和营养价值进行综合评价。结果表明:供试紫花苜蓿品种前景的株高年均值最高,为74.63 cm,先牧不倒翁最低,为67.24 cm;供试紫花苜蓿品种WL363HQ的干草年总产量最高,为19 169.08 kg·hm-2,而先牧不倒翁最低,为15 020.64 kg·hm-2;供试紫花苜蓿品种WL366HQ的叶茎比年均值最高,为0.73,巨能Ⅶ最低,为0.65。供试紫花苜蓿品种WL354HQ的干物质含量年均值最高,为93.78%,WL363HQ的粗蛋白含量年均值最高,为18.10%,WL366HQ的中性洗涤纤维和酸性洗涤纤维含量年均值最低,分别为38.95%和29.45%,巨能Ⅶ的钙含量年均值最高,为1.88% ,WL354HQ的磷含量年均值最高,为1.13%;WL366HQ的相对饲喂价值最高,达159.91,而先牧不倒翁的相对饲喂价值最低(140.83)。通过灰色关联度综合评价得出供试紫花苜蓿品种WL366HQ、WL353LH、WL363HQ、WL354HQ的综合性状较好,适宜在河西走廊地区推广和利用;前景、WL319HQ、WL326GZ、WL440HQ、巨能Ⅱ、先牧抗冻星、WL298HQ和巨能Ⅶ的综合性状中等,在该地区有待进一步继续种植和观察;而先牧不倒翁的综合性状较差,引种时需综合考虑。
英文摘要:
      Thirteen introduced alfalfa cultivars including 55V12, 54V09, Magna Graze Ⅱ, Magna Graze Ⅶ,Vision, WL319HQ、WL366HQ、WL363HQ、WL354HQ、WL298HQ、WL440HQ、WL353LH and WL326GZ were used as research materials in Hexi Corridor of Gansu Province. In this paper, the plant height, hay yield, leaf-stem ratio, dry matter, crude protein, neutral detergent fiber, acid detergent fiber, calcium and phosphorus of alfalfa were measured and analyzed at the initial flowering stage of first-year, second-year and third-year alfalfa. The production and nutritional value of thirteen alfalfa cultivars were comprehensively evaluated by the grey correlation degree analysis. The results showed that the annual average plant height of Vision was the highest at 74.63 cm while 55V12 was lowest at 67.24 cm. The WL363HQ showed the highest total dry yield (19 169.08 kg·hm-2), the 55V12 was the lowest at 15 020.64 kg·hm-2. The leaf-stem ratio of WL366HQ was the highest(0.73), however, the Magna Graze Ⅶ was the lowest at 0.65. The annual average dry matter of WL354HQ was the highest at 93.78%, and annual average crude protein of WL363HQ was the highest(18.10%). The annual average neutral detergent fiber and acid detergent fiber of WL366HQ were the lowest at 38.95% and 29.45%. The Magna Graze Ⅶ showed the highest annual average calcium(1.88%), and the annual average phosphorus of WL354HQ was the highest(1.13%). The relative feed value of WL366HQ was the highest at 159.91, but the relative feed value of 55V12 was the lowest at 140.83. Through grey correlation degree analysis, the WL366HQ, WL353LH, WL363HQ and WL354HQ had better comprehensive traits and were suitable for promotion and utilization in Hexi Corridor. Vision, WL319HQ, WL326GZ, WL440HQ, Magna Graze Ⅶ, 54V09,WL298HQ and Magna Graze Ⅱ had moderate comprehensive traits, which needed further cultivation and observation in this area; but 55V12 had poor comprehensive traitsand should be given careful consideration when introduced.
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