Assessment of rhizobacteria strains for Vicia sativa

doi:10.11686/cyxb20140528

Abstract

Abstract:

To investigate the effect of rhizobacteria inoculants on the growth of Vicia sativa, four rhizobacteria strains (J3-1, J1-15, Y16 and J3) were assessed for potentially useful characteristics with the potential to enhance the growth and yield of V. sativa; high nitrogenase activity, high phosphate solubilisation and ability to secrete 3-indoleacetic acid (IAA) into the rhizosphere. Strains J3-1, J1-15 and Y16 had the ability to solubilize phosphate and secrete IAA. J1-15, Y16, J3-1 had the strongest phosphate solubilizing capacity (548.9 mg/L), IAA secreting ability (17.8 μg/mL), and nitrogenase activity (366.51 C₂H₄ nmol/mL·h), respectively. Y16 increased the aboveground biomass and underground biomass of V. sativa by 104.5% and 254.1%, respectively, compared to the non-inoculated control. An inoculant mixture of all four strains increased the aboveground biomass and underground biomass of V. sativa by 76.1% and 192.3%, respectively, relative to the control. This resulted from an increase in plant height, root length, root surface area, root volume and root activity of 29.4%, 70.0%, 174.0%, 194.6% and 38.3%, respectively. The results suggest that inoculants including mixtures of rhizobacteria strains may have significant benefits for V. sativa cultivation.

CLC Number:

S816

MA Wen-bin,YAO Tuo,WANG Guo-ji,ZHANG Yu-xia,RONG Liang-yan. Assessment of rhizobacteria strains for Vicia sativa[J]. Acta Prataculturae Sinica, 2014, 23(5): 241-248.

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