Abstract:
Mung bean yellow mosaic virus (MYMV) is one of
the most important diseases affecting mung beans,
transmitted by the whitefly (Bemisia tabaci).
MYMV poses a significant threat to mung bean
production, emphasizing the need to identify
resistant genotypes for the development of
effective disease control strategies. In this study,
we screened 60 mung bean germplasm under field
conditions during the Yala season of 2022 to
identify stable MYMV-resistant lines. Infector
rows were planted alongside the test entries, and
disease incidence and severity were observed
under natural conditions. The genotypes studied
were categorized as highly resistant to highly
susceptible, with none of the test entries
appearing to be highly resistant. We identified
MIMB 909, MIMB 913, MIMB 916, MIMB 918,
MI 7, MIMB 907, MIMB 908, MIMB 911, MIMB
912, MIMB 914, MIMB 923, MIMB 926, MIMB
933, MIMB 937, MIMB 938, MIMB 941, MIMB
945, MIMB 982, and MIMB 983 as resistant and
moderately resistant genotypes, respectively.
These genotypes could serve as parental lines in a
mung bean breeding program focused on
developing more MYMV-resistant varieties.
Further studies are needed to evaluate the
stability of resistance in these genotypes across
multiple growing seasons and locations. The
research contributes Valuable insight into the
dynamics of MYMV infection in mung bean
providing a foundation for developing diseaseresistant varieties and sustainable crop
management strategies. Consequently, in the near
future, the improved varieties may surfeit the
sustainable agriculture production in the biotic
stress prone areas.
