【摘要】 2006年至2007年在内蒙古锡林郭勒盟正蓝旗对蒙农1号蒙古冰草(Agropyron mongolicum Keng. cv. Mengnong No.1)、诺丹冰草(A.desertorum cv.Nordan)、蒙农杂种冰草(A.cristatum×A.desertorum Mengnong)、锡林郭勒缘毛雀麦(Bromus ciliatus L.cv.Xilinguole)和农牧老芒麦(Elymus sibiricus L.cv.Nongmu)等5个牧草品种进行了耐旱适应性比较试验,通过对出苗数、物候期、干草产量、潜在种子产量及气孔数的试验观测,并进行欧氏聚类综合分析,结果表明:蒙农1号蒙古冰草在旱作条件下生长发育表现优于其它品种,干草产量可达4 200 kg/hm2,种子产量可达571.17 kg/hm2,可以作为当地旱作人工草地建植的首选草种。更多还原

【Abstract】 The five forage species including Agropyron mongolicum Keng cv.Mengnong No.1,A.desertorum cv.Nordan,A.cristatum×A.desertorum Mengnong,Bromus ciliatus L.cv.Xilinguole and Elymus sibiricus L.cv.Nongmu were studied on drought tolerance in Zhenglanqi Banner,Xinlinguole league,Inner Mongolia from 2006 to 2007.The germination rate,phenophase,hay yield,potential seed yield and stomatal quantity were measured and the data was analyzed by Euclidean cluster analysis.The results showed that A mongolicum Keng cv.Mengnong No.1 had the advantage over the other 4 materials on growth and development in dryland cultivation.The hay yield was 4200 kg/hm2,and the seed yield was 571.17 kg/hm2.It was optimal to sowing grassland in the typical grassland.更多还原