Evaluation of the biostimulatory and nematicidal effects of Bacillus cereus var. Fluorescens on Solanum tuberosum [Articol]

Abstract

This study evaluated the efficacy of bacterial culture liquid as biocontrol agent in potato (Solanum tuberosum) cultivation. In vivo application of the culture liquid derived from Bacillus cereus var. fluorescens CNMN-BB-07 (6 × 10⁸ cells/mL) resulted in a substantial reduction in Ditylenchus destructor infestation, decreasing infection levels to 1–4% compared with 40.42% in the untreated control. The treatment also increased potato yield by 1.7-fold relative to untreated seed tubers (control C1), completely prevented tuber rot during storage, and reduced damage caused by Gryllotalpa gryllotalpa to 10.4%. Overall, the tested bacterial strain demonstrated pronounced plant growth–promoting and nematode-suppressive effects, indicating their potential as effective and environmentally sustainable tools for integrated potato protection strategies