effects of some arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria on the growth and yield indices of two wheat varieties in a saline soil

abstract the objective of this study was to assess the effects of few arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria on the growth and yield indices of two wheat varieties in a saline soil (ec=10/1 dsm-1). a factorial experiment with completely randomized design with four replications was conducted to investigate the effects of three levels of fungal inoculation (non inoculation , inoculation with glomus etunicatum and with glomus intradices) and four levels of bacterial inoculation (non inoculation, inoculation with p. fluorescens strains 4 , 9, 12) on two wheat varieties (sistan and chamran) as tolerant and semi-tolerant to salinity, respectively. our results showed that the growth and yield indices of two varieties were significantly (p<0/05) different. single inoculation of sistan with glomus etunicatum and p. fluorescens, strains 9, increased fresh and dry weight of shoot. single inoculation of both varieties with glomus etunicatum significantly increased the root dry weight. single inoculation of sistan with glomus etunicatum and p. fluorescens, strains 12, resulted in highest grain number in spike, spike weight, thousand grains weight and final grain yield. co-inoculation of glomus intradices and p. fluorescens, strains 12, of sistan variety significantly increased the chlorophyll content of the flag leaf. field trials, considering same treatments are advised to further support of this study results.