【摘要】 于播种前,以5×108CFU/mL浓度的PGPR菌株B9601-Y2,FZB42,B2和B9拌种蚕豆,在全生育期土壤重度干旱条件下,与清水拌种相比,它们均能提早出苗,促进幼苗生长,增加植株地上和地下重量与荚果数,B9601-Y2,FZB42,B2和B9菌株分别增加蚕豆株荚数0.65个、0.50个、0.05个和0.33个,有效荚数0.68个、0.53个、0.08个、0.28个,果荚重4.56 g、3.36 g、2.13 g、0.36 g,株粒数1.18粒、1.55粒、0.80粒、0.15粒,百粒重5.28 g,5.75 g,3.72 g,2.50 g,豆粒产量14.49%,12.04%,6.28%,2.21%。更多还原

【Abstract】 Four PGPR strains,B9601-Y2,FZB42,B2 and B9 were used for dressing seeds of broad bean at the concentration of 5×108 CFU/mL before seeding.Under serious drought during whole growth period,all these strains could enhance the growth of broad bean in comparison with negative control: obviously earlier seed germination,higher plant at seedling stage,increasing weight of above and underground parts and more pod number.The pods after dressing seeds of broad bean with B9601-Y2,FZB42,B2 and B9 were increased by 0.65,0.50,0.05 and 0.33,the fruiting pods per plant were 0.68,0.53,0.08 and 0.28,the pod weights were 4.56 g,3.36 g,2.13 g and 0.36 g,the seeds per plant were 1.18,1.55,0.80 and 0.15 g,the weights per 100-seeds were 5.28 g,5.75 g,3.72 g and 2.50 g,the grain yield of broad bean were 14.49%,12.04%,6.28% and 2.21%,respectively.更多还原