12个引进苜蓿品种适应性栽培试验

摘要：苜蓿王、菲尔兹、金字塔、里奥、辛普劳2000、诺瓦、霍普兰德、多叶苜蓿、大叶苜蓿、Spreador 3、Pick3006和Pick8925是从美国和加拿大引进的优良紫花苜蓿（Medicago sativa）品种，以国产中兰1号为对照品种，2003年在半干旱区兰州开展引种试验；2008年在半湿润区天水甘谷继续开展适应性试验，同时对营养成分和抗旱指标进行测定。结果表明，引进的12个苜蓿品种，在半干旱、半湿润区均能正常生长，完成生育周期的全过程，无异常表现，未发现病虫害侵染。各项试验得出，苜蓿王的抗旱性强，鲜草产量在兰州平均达54 207.00 kg/hm2，在甘谷平均达82 883.65 kg/hm2；Pick3006农艺性状仅次于苜蓿王；Spreador 3具叶大、杆中实、抗倒伏等优良特性；对照中兰1号具优质、高产、抗旱特点；建议这4个苜蓿品种在我国黄土高原半干旱及半湿润地区推广种植。

A study on 12introduced varieties of alfalfa adaptive cultivation tests

12 introduced alfalfa(Medicago sativa) breeds,including Alfaking,Fields,Pyramid,Reward,Simplot 2000,Norva,Hopeland,Multifoliator,Leafking,Pick 3006,Pick 8925,Spreador-3,from American and Canada compared with local breed(Zhonglan 1) were studied in breed introduction cultivation tests in semi-aridity areas(Lanzhou) in 2003,and on adaptability in semi-humidity area(Gangu) in 2008.The results indicated that 12 introduced alfalfa plants grew well and completed all the reproductive periodicity.The results did no...