SOLUBILIZADORES DE FOSFATOS PARA INCREMENTO DE PRODUTIVIDADE DE TOMATE CEREJA (Solanum lycopersicum L. var. cerasiforme)

Abstract

Tomatoes are considered one of the most demanding vegetables in terms of fertilization, as their nutrient uptake efficiency is low. The use of phosphate solubilizers appears to be a promising solution to address the challenges of P adsorption. Therefore, the objective of this study was to evaluate the agronomic parameters and phosphorus accumulation of cherry tomatoes (Solanum lycopersicum L. var. cerasiforme). The experiment was conducted in a greenhouse at the Instituto Federal Goiano –Rio Verde Campus, GO. The experimental design was randomized blocks with four replicates. The treatments were: Control (no inoculation), Pseudomonas fluorescens (commercial product), Bacillus megaterium + Bacillus subtilis (commercial product), Scleroderma citrinum, and Ralstonia sp. Data were analyzed using analysis of variance, and means were compared using the Scott-Knott test (5% significance level). Ralstonia sp. was the most efficient, promoting simultaneous increases in production variables (shoot and root length, fresh and dry weight of the root, stem diameter, fresh weight, and number of fruits) and P accumulation in the fruit and shoot. Ralstonia sp. and Scleroderma citrinum showed increases in fruit dry weight. Pseudomonas fluorescens was efficient in root P accumulation. In the production variables of P accumulation, inoculations demonstrated better responses compared to the absence of inoculation.