3个加拿大苜蓿品种的引种适应性试验

Adaptability of three canada alfalfas varieties in Lanzhou and Tianshui of Gansu province

2002年从加拿大引进3个苜蓿品种,以国产优良苜蓿品种中兰1号为对照,2003年在半干旱地区兰州盆地黄河南岸三级阶地进行引种试验,2008~2009年在半湿润区天水继续适应性试验。结果表明：引进的3个苜蓿品种,在兰州和天水均能正常生长,完成全生育期,无异常表现,未发现病虫害侵染;通过对其营养成分、生长速度、生物量和茎叶比等指标测定分析得出：Pick 8925,Spreador-3和Pick3006为适宜种植的优良苜蓿品种,建议在我国黄土高原半干旱地区及半湿润区推广种植。

Adaptability of three Canada alfalfas varieties,Pick3006,Pick8925 and Spreador-3,were tested at Lanzhou and Tianshui of Gansu Province between 2008 and 2009.The result indicated that the three alfalfas varieties could grow normally in the semi-humid area and completed all the procreation periodicity,no exceptional representation and pests present.Pick8925,Spreador-3,Pick3006 and Zhong Lan No.1 were the choiceness varieties in the teded area based on procreation periodicity,nutrition component,growth rapidity and ratio of stem and leaf analyse.