Identification of resistant sources for phomopsis fruit rot in brinjal(Solanum melongena L.)
DOI:
https://doi.org/10.24154/jhs.v21i1.3613Keywords:
Eggplant, Diaporthe vexans, phomopsis fruit rot, resistance, screeningAbstract
Phomopsis fruit rot, caused by Diaporthe vexans, significantly limits global eggplant production. The development of host plant resistance is the most sustainable management strategy. In this study, 114 genotypes were screened using artificial inoculation (mycelial plug/spore suspension) to determine their resistance levels via per cent disease index (PDI). Among the tested lines, Solanum torvum was immune (0% PDI), while S. viarum, S. indicum, and S. melongena genotype IIHR 629 showed resistance (6.67% PDI). Furthermore, 14 genotypes were moderately resistant, 47 moderately susceptible, 37 susceptible, and 11 highly susceptible. These findings were validated by area under disease progress curve (AUDPC) values. The identified resistant genotypes are valuable donors for breeding programs, and the immune wild species hold potential for pre-breeding efforts to incorporate resistance genes.
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Copyright (c) 2026 Sulochana K H, H A Bhargavi, S K Singh, R Venugopalan, K S Shivshankara, D C Lakshman Reddy, S Mishra, N Ponnam, S Sriram, T H Singh, G M Sandeep Kumar, G Narayana Swamy (Author)
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