草业科学2011，Vol.28Issue(11)：1998-2002,5.
18个苜蓿品种在青海高原的比较试验
A comparison of adaptive cultivation of eighteen alfalfa varieties in the Qinghai Plateau
摘要
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.关键词
苜蓿/产草量/青海高原/根系特征/分枝数Key words
alfalfa yield the Qinghai Plateau root characteristics number of branches分类
农业科技引用本文复制引用
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):1998-2002,5.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 （）
