Effects of bacterial and fungal bio-fertilizers on yield and quality of soilless-grown cluster tomato

This study evaluated the effects of bacterial (Arthrobacter globiformis, Streptomyces griseus) and fungal (Aspergillus oryzae) preparations on the growth, yield, and fruit quality of cluster tomato (Solanum lycopersicum L. cv. Cletego F1) grown in cocopeat substrate under greenhouse conditions. Treatments significantly improved plant growth, cluster number, and yield compared with the control, with Streptomyces griseus producing the highest yield (58.6 t da–¹) and superior fruit quality (SSC = 4.85%, acidity = 0.28 g citric acid 100 mL⁻¹). The control recorded the highest vitamin C content. The study concludes that microbial inoculation enhances yield and quality in soilless tomato cultivation, supporting eco-friendly and sustainable production systems.