Interactions between host resistance and waterlogging in relation to Pythium root and hypocotyl disease on common bean (Phaseolus vulgaris)

Host resistance offers the most effective and long-term disease management strategy to control damping-off and root rot disease caused by Pythium species, a disease exacerbated by waterlogging and responsible for significant yield reduction in common bean (Phaseolus vulgaris). This research identified common bean varieties with resistance to Pythium irregulare with and without waterlogging. It highlighted how waterlogging increases root and hypocotyl disease severity caused by this pathogen. These new understandings provide the foundation for developing common bean varieties with resistance to Pythium disease even under waterlogging conditions. and open the way for developing novel control methods against this serious disease.