Effect of heat treatment and iodoacetic acid sodium salt on potato productivity in vegetation and field experiments
The effect of heat treatment and iodacetic acid sodium salt (MIA) on potato productivity in vegetation and field experiments has been studied. Potato tubers infected with Clavibacter michiganensis ssp. sepe-donicus, causal agent of bacterial ring rot of potato, have been used in vegetation experiments. Typical symptoms of disease have been observed in tubers of resistant cultivar Lugovsky, despite the absence of visual signs of lesion at the vegetative stage. Heat treatment at 45 оС has inhibited the development of infection in susceptible cultivar Lukjanovsky at the vegetative stage, but it has not prevented the tuber lesions at the storage stage. The treatment of tubers of resistant potato cultivar Lugovsky with MIA at 26 оС has been shown to increase the productivity in field experiments.