

Mycological profiling of raspberry cultivars in storage
https://doi.org/10.31676/0235-2591-2020-6-40-45
Abstract
Economic losses incurred during raspberry storage are primarily a result of fungal spoilage. This study aimed to characterise the micromycete phytopathogenic complex in stored raspberries. The fungal microbiome was assessed in six Russian raspberry cultivars (Cleopatra, Novost’ Kuzmina, Sulamiph, Fregat, Shakhrazada, Yarkaya) as well as three foreign varieties (Glen Lyon, Cascade Delight, Limonnaya). The economic and biological traits of the cultivars were studied within the “Programme and Protocol for Fruit, Berry and Nut Crops Varietal Testing”. Internal and surfacelevel contamination in infected fruit tissues was detected via the stimulation of microbial growth in a wet chamber. The micromycete species composition was assessed via commonly used methods. The following raspberry spoilage organisms were identified as being predominant. Rots: black (Alternaria alternata (Fr) Keissler), dry (Fusarium Link.), leather (Phytophthora cactorum (Leb. et Cohn) Schroet), grey (Botrytis cinerea Pers.); moulds: black (Cladosporium Link.), green-blue (Penicillium Link.), green-yellow (Aspergillus P. Micheliex Haller), grey capitate (Rhizopus nigricans Ehrenb.), capitate (Mucor spp.); drupe rot (Phragmidium rubi Wint.); bacterioses. Microbiotic profiles varied between cultivars in storage. The fungal genera Fusarium and Alternaria prevailed, with the former dominating in almost all samples. The phytopathogenic complex primarily consisted of the fungal genera Fusarium, Alternaria and Penicillium. Raspberry cultivars which had a weak (Sulamiph, Shakhrazada, Novost’ Kuzmina) or strong (Cleopatra) resistance to micromycetes in storage were identified.
About the Authors
T. V. ZhidekhinaRussian Federation
Tatiana V. Zhidekhina - Leading Researcher, Cand. Sci. (Agr.), Assoc. Prof., Head of the Department of Berry Crops, Deputy Director for Science
30, Michurina str., Michurinsk, Tambov region, 393774
V. A. Lavrinova
Russian Federation
Senior Researcher, Cand. Sci. (Agr.), Department of Plant Protection, Srednerusskiy Branch
Novaya Zhizn, Tambov region
T. S. Polunina
Russian Federation
Senior Researcher, Cand. Sci. (Agr.), Department of Plant Protection Center, Srednerusskiy Branch
Novaya Zhizn, Tambov region
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Review
For citations:
Zhidekhina T.V., Lavrinova V.A., Polunina T.S. Mycological profiling of raspberry cultivars in storage. Horticulture and viticulture. 2020;(6):40-45. (In Russ.) https://doi.org/10.31676/0235-2591-2020-6-40-45