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PERS. ON SUNFLOWER IN TAMBOV PROVINCE
The overview of the literature on the global proliferation of the pathogen of grey rot of sunflower - Botrytis cinerea Pers. ex Frier., its biological cycle, parasitism, severity and optimal conditions for its development is given. Distribution of B. cinerea in different forms of its manifestation in Tambov region in 1993-2014 depending on weather conditions, the timing of the existence of forms are shown, the symptoms of the disease on different organs and morphological characteristics of pathogen are described. The dependence of the number of affected baskets on infected seed is observed.
sunflower; grey rot; pathogen; life cycle; harmfulness; form of manifestation; distribution
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