Effect of plant growth-promoting bacteria and inoculation media in the yield on cooksfoot yield

Objetives: To determine the effect of three PGPB bacteria (Ewingella americana, Bacillus simplex y Microbacterium ginsengiterrae) and three inoculant methods (digestate, compost and cornstarch) on yield, plant height, leaf temperature, tiller density and morphological composition of cooksfoot. Desing/methodology/approach: A completely randomized design was used, with a factorial arrangement 4*3, the experimental units being a pot with five stems. Results: The dry matter did not register difference between treatments with bacteria (P>0.05), but with respect to the control the values increased up to 50%. Compost and digestate media outperformed cornstarch by 22%. The inoculation media had an effect (P<0.05) on the yield and leaf, while the bacteria promoted the formation of new tillers, the yield and reduced the leaf temperature. Findings/conclusions: Compost and digestate as inoculation media can notably favor the beneficial effect of M. ginsengiterrae, which was the one that registered the best yields