Growth and Production of Solanum lycopersicum L. Bio Fertilized with Rhizophagus intraradices, Azospirillum brasilense and Foliar Application of Homobrassinolide in Nursery

Solanum lycopersicum L. is a vegetable of daily consumption in our national population. It is native to America and has been widely adopted and cultivated in many regions of the world under various production systems. Currently, it is preferred when it is grown without agrochemicals and for this purpose, sustainable production processes that favor productivity are required. An alternative is to use soil microorganisms that establish symbiosis in the roots of the crops and favor their nutrition. In this study, the effect of the application of two beneficial microorganisms, Rhizophagus intraradices and Azospirillum brasilense, and a homobrassinolide compared with chemical fertilization (17N+17P+17K) was evaluated. Morphological and physiological yield components were recorded 14, 28, 42, 56 and 70 days after transplanting. Data were analyzed statistically and differences between treatments were compared according to Tukey (P≤ 0.05). The results indicate that the morphological yield components of S. lycopersicum L. exhibit differential response with R. intraradices and synthetic fertilization favored its growth. In contrast, foliar application of homobrasinolide (Hbr) stimulated flowering, rather than biomass accumulation or yield. Root dry matter allocation and leaf area increased with R. intraradices and with synthetic fertilization increased stem thickness, leaf dry weight and yield.