| 18个苜蓿品种在青海高原的比较试验 |
| |
| 引用本文： | 李春喜.18个苜蓿品种在青海高原的比较试验[J].草业科学,2011,28(11):1998-2002. |
| |
| 作者姓名： | 李春喜 |
| |
| 作者单位： | 中国科学院西北高原生物研究所中国科学院高原生物适应与进化重点实验室,青海西宁,810001 |
| |
| 基金项目： | 中国科学院西北高原生物研究所知识创新工程领域前沿项目(0754321211) |
| |
| 摘 要： | 2009-2010年在青海高原对18个苜蓿(Medicago sativa)品种进行比较试验，结果表明，种植第1年开花初期单株根长22.6～31.9 cm，根粗4.1～8.8 mm，单株分枝数4.1～6.8枝，株高43.9～80.1 cm，品种间差异不显著；种植第2年开始进入丰产、高产期，单株分枝数增加1.5～10.5枝，第1次刈割时株高在110.7～145.4 cm，比第1年第1茬高1倍，三得利、德宝、WL232品种表现最优；第2年全年鲜草产量和干草产量居前3位，鲜草产量在106 614～121 364 kg/hm2，干草产量在30 761～34 934 kg/hm2；美国杂花、德福32IQ、赛特、农保和阿尔冈金居第4~8位，鲜草产量91 922～10 282 kg/hm2，干草产量为25 410～29 036 kg/hm2，优于其他品种，表明这些苜蓿品种适宜青海高原东部农业区推广种植。
|
| 关 键 词： | 苜蓿 产草量 青海高原 根系特征 分枝数 |
A comparison of adaptive cultivation of eighteen alfalfa varieties in the Qinghai Plateau |
| |
| LI Chun-xi.A comparison of adaptive cultivation of eighteen alfalfa varieties in the Qinghai Plateau[J].Pratacultural Science,2011,28(11):1998-2002. |
| |
| Authors: | LI Chun-xi |
| |
| Institution: | LI Chun-xi(Key laboratory of Adaptation and Evolution of Plateau Biota,Northwest Insitute of Plateau Biology, Chinese Academy of Sciences,Qinghai Xining 810001,China) |
| |
| Abstract: | Eighteen alfalfa varieties were compared on their performances in Qinghai Plateau in 2009-2010.In the first planting year(2009),the root length,root diameter,number of branches per plant and plant height were 22.6-31.9 cm,4.1-8.8 mm,4.1-6.8,and 43.9-80.1 cm,respectively.No significant difference was observed among varieties during the early flowering period in 2009.The high-yield period appeared in the second planting year(2010);and the number of branches per plant increased by 1.5-10.5 times.The height of plants at the first mowing in 2010 was 110.7-145.4 cm,which was one time higher than that in 2009.Varieties of Sandeli,Debao,WL232 gave the highest fresh forage and hay yield in 2010,which were between 106 614-121 364 kg/ha and 30 761-34 934 kg/ha,respectively.America Zajiao,Defy32IQ,Sitel,Nongbao,Algonquin ranked 4th-8th with 91 922-102 822 kg/ha of fresh forage and 25 410-29 036 kg/ha of hay forage.These eight varieties had better performances than other varieties,which indicated they were suitable for cultivating in eastern agricultural areas of the Qinghai Plateau. |
| |
| Keywords: | alfalfa yield the Qinghai Plateau root characteristics number of branches |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《草业科学》浏览原始摘要信息 |
| 点击此处可从《草业科学》下载免费的PDF全文 |
|
