The effect of nanoparticles of metals and nonmetals of multicomponent trace element preparation «Avatar-2 protection» and microbial preparation «Azogran» on the incedence and severity of infectious diseases of potato

Abstract

The aim of the research was to study the influence of nanoparticles (NPs) of metals and nonmetals of multicomponent trace element preparation «Avatar-2 protection» and microbial preparation «Azogran» on infectious diseases of potato in vivo. Affection of potato cultivar Suvenir Chernihivskyi by diseases was evaluated in two small plot studies on soddy podzolic soil and alkaline chernozem. Symptoms of common scab and dry rot in tubers were identified visually and then the severity and the rate of the diseases were calculated. The presence of viruses in plants was examined by agglutination tests and the rates of the viral infections were calculated. The results of the study indicate that on the soddy podzolic soil the composition of Se+I NPs significantly decrease disease severity of both common scab and dry rot by 20.00 and 17.50% respectively, whereas «Avatar-2 protection» preparation, «Azogran» preparation and the combination of «Azogran» preparation with the composition of Se+I NPs significantly decreased only the severity of dry rot by 22.50%. The combination of «Azogran» preparation with the composition of Se+I NPs significantly decreased the incidence and the disease severity of common scab, the incidence and the disease severity of dry rot on the alkaline chernozem by 40.00; 30.00; 25.00 and 30.00% respectively; whereas «Avatar-2 protection» preparation significantly decreased the incidence of viral diseases by 33.33–66.67% on both soils. The effect of the composition of Se+I NPs, «Avatar-2 protection» preparation and «Azogran» preparation is promising for further investigation. Particularly, an abundance of different groups of microorganisms in potato’s rhizosphere under the treatment with studied substances needs to be evaluated in order to understand the mechanisms diseases’ incidence and severity decrease. The effect of the studied NPs and preparations on other diseases of potato and diseases of other agricultural crops needs to be studied. The results of these studies can be useful for the development of the control methods for various infectious diseases of agricultural crops.