RESPONSE OF MUSTARD ( BRASSICA CAMPESTRIS L ) SUNFLOWER (HELIANTHUS ANNUUS L.) AND TEFF ? (ERAGROSTIS TEFF L.) TO INOCULATION WITH PLANT GROWTH PROMOTING RHIZOBACTERIA

摘要

Carrier-based ( Soil:FYM::l :1) plant growth promoting rhizobacteria (PGPR) isolates [ Bacillus subtilis, Klebsiella planticola, Proteus vulgaris, Azospirillum brasilensei C D J A), Azotobacter chroococcum (CBD 15) ] were tested on mustard (Brassica juncea L. cv. Pusa Bold), sunflower {Helianthus annum L. cv. Morden and teff (Eragrostis teff cv. DZ-01-354 ), for their ability to influence the growth and yield in the presence and absence of applied fertilizer nitrogen. The results revealed in general,with the increase in nitrogen level there was significant increase in the population of inoculant bacteria. The biomass and seed yield were not influenced markedly by the application of nitrogen fertilizer when tested under green house conditions.. Among inoculants. Bacillus subtilis resulted in significantly more biomass and grain yield than uninoculated control at 0 level of N. Further, the interaction of N and inoculants also revealed better performance.