of the Urals

Russian Journal of Agricultural Research

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ISSN 1997 - 4868 (Print)

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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 03 (121) 2014

Овощеводство и садоводство

Неверова О. П. кандидат биологических наук, доцент Уральский государственный аграрный университет

Шаравьев П. В. старший преподаватель Уральский государственный аграрный университет

Зуева Г. В. кандидат биологических наук, доцент Уральский государственный аграрный университет



Experimental data on potato ozonization technology are presented. The revealed potato phytopathogens in storage rooms (Phytophthra infestens, Cercospora concors, Alternaria solani, Spongospora, subterranean, Helminthosporium solani, Verticillium alboatum, Fusarium oxysporum) ambiguously reacted to ozone influence. The modern technology of potato protection from infection with its pathogens is based on use of pesticides without justification of pathogen development stages. Pycnospores of these phytopathogens have a double-walled chitinous cover thereof spores lose touch with habitat therefore they don’t react to extreme conditions (on poisons which are components of pesticides). Preservation of some potato phytopathogens (Alternaria solani, Cercospora concors, Helminthosporium solani) after ozonization, is caused by a feature of pathogen life cycle: the spores stage is steady to extreme conditions that has predetermined the experiment on identification of vulnerable stages when influenced by ozone. At an artificial inoculation by phytopathogen spores of potato plants (leaf carvings) and their cultivation in the cultural environment under optimum conditions for spore germination in Klimatostat device it was revealed that the spore germination stage and development of mushroom hyphae occured on the average in 2–3 hours. The carried-out ozonization on the hypha and spore stages showed that hyphae of mushrooms only had a destructive state, the spores which hadn’t sprouted before ozonization, after ozonization remained vital and when placed again in optimum conditions of cultivation, they sprouted and formed hyphae. Microscope of inoculated potato leaf carvings and analysis of pathogen development stages on the cultural environment (7 carvings in each of 3 Petri’s cups for each studied phytopathogen) showed that ozonization should be carried out at hyphae stages of phytopathogen development.


ozone, ozonization, phytopathogens, disputes, hyphae, ontogenesis, inoculation


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