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%。
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.
出处
《干旱区研究》
CSCD
北大核心
2012年第2期203-207,共5页
Arid Zone Research
基金
科技部国际科技合作项目(2009DFA32360)
昆明市科技局项目(09H130301)
