The Effects of Plant Growth-Promoting Bacteria with Biostimulant Features on the Growth of a Local Onion Cultivar and a Commercial Zucchini Variety

The reduction of chemical inputs due to fertilizer and pesticide applications is a target shared both by farmers consumers in order minimize the side effects for human environmental health. Among possible strategies, use biostimulants has become increasingly important as demonstrated fast growth their global market increased rate registration new products. In this work, we assessed five bacterial strains (Pseudomonas fluorescens Pf4, P. putida S1Pf1, protegens Pf7, migulae 8R6, Pseudomonas sp. 5Vm1K), which were chosen according previously reported plant promotion traits positive on fruit/seed nutrient contents, local onion cultivar zucchini. variations induced inoculation with nutritional components also evaluated. Inoculation resulted significant stimulation improvement mineral concentration bulb, particularly 5Vm1K different flowering zucchini plants strain. present study provides information regarding activity growth-promoting bacteria (PGPB) zucchini, two species rarely considered scientific literature despite economic relevance.