Evaluation of Seed Treating Chemicals against Seed Borne Fungi on Germinating Wheat Seed

Seed borne pathogens of wheat plays vital role in causing plant diseases and constrain wheat productivity in Bangladesh. To evaluate the four seed treating chemicals namely Knowin 50 WP, Sunvit 50 WP, Neuben 72 WP and Tilt 250 EC against wheat seed borne fungi in plant protection laboratory, Agrotechnology Discipline, Khulna University Khulna, Bangladesh during January, 2021 to October 2021.The experiment was carried out to detect the associated seed borne fungi on two wheat seed variety and find out the efficacy of fungicides to control seed borne fungi of wheat. Wheat seed samples (Farmer's seed) of two wheat (Triticum aestivum L.) varieties (BARI Gom-25 and BARI Gom-26) were collected from regional agricultural research station, Jashore. The experiment conducted in completely randomized design (CRD) with four replications. Different seed borne fungi were Alternaria spp., Bipolaris spp., Curvularia spp. and Aspergillus spp. were identified as associated fungi on these two varieties of seed. The prevalence of different seed borne fungi was varying independently and individually in wheat varieties. In case of germination between two wheat varieties, the highest germination percentage was occurred in BARI Gom 26. All the tested fungicides increase germination percentage as compared to untreated seed. Knowin 50 WP showed superior influence on germination of wheat variety over untreated seed in Blotter method. Among the tested fungicides Tilt 250 EC showed potential performance in controlling all the associated fungi on wheat seed.

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