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中文摘要：
2007-2010年,在青岛地区对引进的23个国内外苜蓿品种进行了膜侧种植、无灌溉、无施肥模式的田间试验,观测分析了各品种产草量、株高、茎叶比等指标。结果表明,23个苜蓿品种在青岛普遍生长良好,国外品种生产性能优于国内品种;播种当年干草产量膜侧种植组明显高于直接播种组,干草产量增幅（除甘农4号、新疆大叶和牧歌401外）均在50%以上;干草产量与年均日照时数、年均温的灰色关联度分别达到0.795 5和0.878 9,而与年均降水量关联度仅为0.569 1;株高最高的是WL323为87.8 cm,最低的是敖汉苜蓿,仅74.7 cm;供试23个品种的干草产量与株高均存在显著性差异,株高与草产量相关系数达到0.65以上,具有很高的正相关性;茎叶比最低的是牧歌401,仅为1.22,绝大多数苜蓿品种的茎叶比有逐年增加的趋势。综合评价认为供试23个苜蓿品种中的WL323、牧歌401、驯鹿3个品种综合生产性能较好,适宜在青岛地区辅以膜侧种植模式进行大面积推广。
英文摘要：
Field experiment with 23 different alfalfa varieties was performed in Qingdao,Shandong province,difference in yield,plant height,and stem leave ratio among all treatments were compared in the past 4 years.The result showed that 23 alfalfa varieties generally grew well in Qingdao,and foreign alfalfa varieties showed better performance than domestic varieties.The hay yield of planting beside filmed ridges is significantly higher than the one of conventional tillage,the increases value of the 23 varieties except Gannong No.4,Xinjiangdaye and Ameri graze 401 is over 50%.The correlation degrees between the hay yield and average sunshine duration,annual average temperature are up to 0.795 5,0.878 9,the one between the hay yield and average annual rainfall is just 0.569 1.In plant height,the highest one is WL323,up to 87.8 cm,the lowest one is Aohan,just 74.7 cm.Among the 23 alfalfa,there are significant differences in plant height and the production,the plant height and the production have very high positive correlation,the R is over 0.65.In stem leaf ratio,the lowest is Ameri graze 401,just 1.22 and the stem leaf ratio has a increasing trend.Among the 23 varieties examined,WL323,Ameri graze 401 and AC carbou have superior performance on plant height,fresh yield,stem leaf ratio than others 20 cultivars,which suggesting that the three varieties are suitable to be used in Qingdao region of Shandong province.
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