Investigating In Vitro Interactions and Saprophytic Activities Between Soil-Borne Phytopathogenic

Abstract

Furthermore, all pathogens significantly inhibited the spore's germination of each other, with Phytophthora sp. demonstrating the maximum inhibition against Fusarium oxysporum (99.99%), while Fusarium oxysporum exhibited the lowest inhibition (29.91%) against Phytophthora sp., as compared to the control. As the saprophytic activities tested in soil flasks, Fusarium oxysporum demonstrated high adaptability, surviving and thriving in the presence of Rhizoctonia solani across different combinations (25%,50%,75%). Fusarium's percentage of colonization reached 72.51%, significantly higher than Rhizoctonia's colonization, which ranged from 34.05% to 42.42%.Conversely, Verticillium dahliae displayed the lowest percentage of colonization (17.35% in front of Rhizoctonia solani in soil and 23% in front of Fusarium oxysporum in straw), indicating potential vulnerabilities.