Prevalence of Associated Seed Borne Fungi of Jute and Allied Fiber Crops

Seed-borne fungi represent a significant biotic limitation in contemporary agricultural research, posing a substantial danger to seedling establishment globally. Four distinct methodologies to investigate the dissemination rate of seed-borne fungus in jute and associated fiber crops were used. The nine varieties of fiber crops were V1 = Jute cvl-1, V2 = BJRI deshi jute-5 (0-795), V3 = BJRI deshi jute-6 (0-3820), V4 = BJRI deshi jute-7 (BJC-2142), V5 = BJRI deshi jute-8 (BJC-2197), V6 = Kenaf (HC-2), V7 = Kenaf (HC-95), V8 = BJRI Kenaf-4, and V9 = Mesta (HS-24). The experiment was conducted from June 2018 to January 2019 at the laboratory and net house of the Plant Pathology Department at Sher-e-Bangla Agricultural University, Dhaka, under a Completely Randomized Design with three replications. The blotter technique detected five fungal species across nine distinct varieties, while V5 exhibited the maximum proportion of seed-borne fungus (7.00), according to this study. Botryodiplodia theobromae, Fusarium spp., Aspergillus spp., Colletotrichum corchori and Curvularia lunata comprise the genera. The water agar technique demonstrated that V4 contained the most linked seed-borne fungus (5.67), with specific varieties containing five fungal species. C. corchori, C. lunata, Fusarium spp., Aspergillus spp., and M. phaseolina were the organisms that were identified. The V2, V3 and V4 cultivars had the highest incidence of seed-borne fungus (2.00), with four fungal species identified by the test tube approach. The organisms identified were C. corchori, Fusarium spp., Aspergillus spp., and M. phaseolina. Among all approaches, V5 had the greatest post-emergence mortality, followed by variety V9, while variety V7 displayed the least mortality. Four fungal genera were identified: Aspergillus species, Fusarium spp., B. theobromae and C. corchori. Variety V7 had the lowest across all methods, whereas variety V5 had the highest post-emergence mortality, followed by variety V9. In contrast to other varieties, V5 shown greater efficacy against seed-borne fungi associated with jute and allied fibers.