Tomato Fruit Yield and Soluble Solids under Mimosa pudica Root-Derived PGPR Application

Microbial preparations derived from plant roots are increasingly investigated as inputs for horticultural production. This study examined harvested-fruit responses of greenhouse-grown tomato (Solanum lycopersicum L.) to a fermented preparation derived from Mimosa pudica roots. The experiment was conducted in Belu Regency, East Nusa Tenggara, Indonesia, during April–May 2026 using a completely randomized design with four application concentrations: 0 (D0), 100 (D1), 150 (D2), and 200 (D3) mL L⁻¹. Each treatment comprised three experimental units containing seven tomato plants. Harvest-stage outcomes included fruit number per plant, mean individual fruit mass, total fruit mass per plant, and total soluble solids measured using a refractometer. Across D0–D3, observed treatment means increased from 19.09 to 49.43 fruits per plant, from 19.68 to 46.16 g per fruit, from 0.37 to 2.28 kg per plant, and from 2.26 to 6.73 °Brix. The largest numerical mean for each parameter occurred under D3. These results describe a positive concentration-related pattern in the measured greenhouse outcomes. The results are presented as treatment means and interpreted descriptively without statistical inference. The findings provide a harvest-quality complement to previously published vegetative-growth and fruit-set observations from the same trial and support further evaluation of root-derived microbial preparations under agronomic conditions