SCREENING OF MICROBIAL CONSORTIA AGAINST SORGHUM CULTIVARSY. KAVYA, N. TRIMURTULU, A.VIJAYA GOPAL, P. MADHU VANI AND N.V.V.S.D. PRASADAbstract The study was conducted at ARS, Amaravathi, Guntur district, Andhra Pradesh, to find the efficiency of different microbial consortia by screening them against sorghum cultivars viz., variety (CSV- 27) and hybrid (CSH-25). Microbial Consortium 1 (Azotobacter, PSB, KRB, ZnSB and PGP isolate), Microbial Consortium 2 (Azospirillium, PSB, KRB, ZnSB and PGP isolate) and Microbial Consortium 3 (Azotobacter, Azospirillium, PSB, KRB, ZnSB and PGP isolate) were formulated. Variety (CSV-27) and hybrid (CSH-25) of sorghum were used for screening the three types of microbial consortia. CSV-27 was more responsive to three types of microbial consortia compared to control. But for CSH-25 there was no much difference between the microbial consortia inoculated treatments and control. So CSV-27 was used for further pot and field experiments. MC3 and MC2 performed better than MC1. Plant height, shoot dry weight, root dry weight, PGPR population of microbial consortia, available nutrient content and nutrient uptake of CSV-27 and CSH- 25 were significantly highest in T4 (Microbial Consortium -3) followed by T3 (Microbial Consortium -2), T2 (Microbial Consortium -1). So Microbial Consortium -2 and Microbial Consortium -3 were screened as comparatively better and utilized for further experiments. |