摘要
2010-2014年,在陇东地区引种14个国外苜蓿(Medicago sativa)品种与当地陇东紫花苜蓿进行比较研究。结果表明,各品种种子用价高,春播当年生育期基本一致,均能安全越冬,以第3年最佳,第4年产量锐减。其中,雷达克之星和德福年均产量分别为11.2和11.0t·hm^(-2),较陇东紫花苜蓿增产9.8%和7.8%。同时,雷达克之星和德福的茎叶比小,品质较好。综合分析,雷达克之星和德福表现最优,适宜作为陇东地区推广的首选品种。
The local alfalfa‘Longdong＇was used as control,the comparative study of 14 introduced alfalfa cultivars were carried out in Eastern Gansu Province during 2010-2014.The results showed that introduced alfalfa cultivars had high seed value,the growth stage of introduced alfalfa cultivars was not significantly different in the spring sowing year.The tested cultivars could overwinter safely and perform the best in the third years.The grass yield of introduced alfalfa cultivars achived the highest in the third year and it decreased greatly from the fourth year.The Ladak＋ and Defi had the highest production with the average hay grass yield of 11.2t·ha^-1 and 11.0t·ha^-1,increased by 9.8% and 7.8%than the local alfalfa‘Longdong＇,respectively.The stem to leaf ratio of Ladak＋ and Defi was small,its grass quality was good.Among these studied cultivars,the Ladak＋and Defi had optimal performance and were suitable for promoting in Longdong Region as the preferred cultivars.
出处
《草业科学》
CAS
CSCD
北大核心
2016年第4期731-738,共8页
Pratacultural Science
基金
国家草品种区域试验-庆阳试验站(20150803)
庆阳市畜牧技术推广中心自列项目-苜蓿品种展示评价(20100401)
关键词
紫花苜蓿
品种
产草量
陇东地区
Medicago sativa
cultivar
hay yield
Longdong Region
