Integrative assessment of seed quality parameters and fungal association patterns in soybean [Glycine max (L.) Merrill] genotypes

Abstract

The present study entitled “Integrative Assessment of Seed Quality Parameters and Fungal Association Patternsin Soybean [Glycine max (L.) Merrill] Genotypes” was conducted at the Department of Seed Science and Technology and Seed Quality and Research Laboratory, University of Agricultural Sciences, Dharwad, during 2022–23. Sixteen soybeangenotypes were evaluated under a Completely Randomized Design (CRD) with three replications to assess seed qualityand seed-borne mycoflora.Significant variation was observed among genotypes for all quality traits. MACS 1407, JS 335,and DSb 34 recorded the highest germination, seedling vigour indices and seedling dry weight, along with low electricalconductivity values, indicating superior seed vigour and membrane stability. In contrast, DSb 28 and JS 93-05 exhibitedlower physiological performance. Seed health testing revealed the presence of Colletotrichum truncatum, Cercosporakikuchii, Fusarium oxysporum, Aspergillus flavus and Macrophomina phaseolina as predominant fungi. The lowest seedinfection was recorded in MACS 1407, DSb 34 and JS 335, indicating their potential tolerance to seed-borne pathogens. Overall, MACS 1407, JS 335 and DSb 34 were identified as superior genotypes with better seed quality and health, suitablefor further physiological and molecular investigations.