文摘
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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106614~121364 kg/hm~2,干草产量在30761~34934 kg/hm~2;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91922~10282 kg/hm~2,干草产量为25410~29036 kg/hm~2,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。 |
其他语种文摘
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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 4~(th)-8~(th) 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. |
来源
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草业科学
,2011,28(11):1998-2002 【扩展库】
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关键词
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苜蓿
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产草量
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青海高原
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根系特征
;
分枝数
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地址
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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
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1001-0629 |
学科
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农作物;畜牧、动物医学、狩猎、蚕、蜂 |
基金
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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
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文献收藏号
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CSCD:4374334
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