Effect of microcapsules of Pseudomonas putida on growth and yield of red pepper

Abstract

The use of beneficial microorganisms such as rhizobacteria can be an alternative to promote plant growth, plant productivity and improve soil fertility; in addition, not to contaminate the environment, be easy to apply and low cost. The objective of the present work was to evaluate the effect of the inoculation of microcapsules and liquid culture of three strains of Pseudomonas putida on the growth and yield of red pepper in greenhouse. Strains FA-8, FA-56 and FA-60 of P. putida were used individually and in combination, which were inoculated directly onto the root by means of microcapsules and liquid suspension. The experiment was carried out in a greenhouse with a randomized block arrangement with nine treatments and four repetitions. The results indicate significant differences between the incorporation of microcapsules and liquid culture of rhizobacteria in the plants of red pepper var. California Wonder, highlighting the microcapsules of strain FA-56 with significant increases in height, root volume, dry biomass, fruit yield, soluble solids content (°Brix) and CFU. The immobilization of P. putida cells by means of microcapsules gives them protection and gradual release, improving the adhesion and colonization of the rhizobacteria on the roots, inducing better effect in the promotion of the growth and productivity of the red pepper plants, which can be a viable alternative as biofertilizer for the sustainable production of the crop.