Effect of Azospirillum brasilense and Methylobacterium oryzae Inoculation on Growth of Red Pepper (Capsicum annuum L.)

摘要: Plant growth-promoting effects of rhizobacterial inoculation obtained in pot experiments cannot always be dependably reproduced fields. In this study, we investigated the effect with Azospirillum brasilense and Methylobacterium oryzae, which have displayed growth promoting several experiments, on fruit yield red pepper under field condition a plastic-film house. Four rows spaced 90 cm apart were prepared after application compost (10 Mg ha -1 ), seedlings (Capsicum annum L., Nocgwang) transplanted each row 40-cm space. Experimental treatments consisted A. CW903 inoculation, M. oryzae CBMB20 uninoculated control. Twelve plots, 10 plants per plot, allotted to three four replicates completely randomized design. At time transplanting, 50 mL inoculum (1×10 8 cells ) was introduced into root zone soil plant, re-inoculated at 7 14 days transplant. measured during experiment. Both could not promote plants. All parameters significantly different among treatments. There large variations recorded plot basis, no statistically significant differences found The failure demonstrate expected plant inoculants is possibly due various environmental factors, including weather characteristics, reducing possibility express potential inoculated bacterial strains.