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Occurrence of gray mold in stored strawberries as affected by ripeness, temperature, and atmosphere
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Orientador(es)
Resumo(s)
Development of postharvest decay in strawberries in general and gray mold caused by Botrytis cinerea in particular, was evaluated, specifically: (1) the effect of controlled atmosphere (CA; 5% O2 + 15% CO2) on different developmental stages of the pathogen; (2) the interaction of fruit ripeness and CA storage among fruit stored for 1 or 2 weeks at normal cold storage temperatures (4 or 10°C) for commercial handling; and (3) the residual effects of CA storage after transfer to air on strawberry susceptibility to fruit rot. Delaying CA establishment for 12 or 24 h at 20°C after wound inoculation resulted in progressively more disease development, suggesting that the CA had a greater inhibitory effect on B. cinerea spore germination vs. mycelial growth. The least decay occurred on three-quarter colored fruit stored in CA vs. air and at the lower temperature, and CA had a greater effect at 10°C than at 4°C. These effects persisted during a 24-h display treatment (fruit held in air at 20°C after the main storage treatments). Additionally, inoculation following 1 or 2 weeks storage at 4 or 10°C indicated that CA helped strawberry fruit maintain resistance to gray mold, especially at the higher storage temperature.
Descrição
Palavras-chave
Fragaria xananassa Botrytis cinerea Decay Infection Maturity Postharvest
Contexto Educativo
Citação
Editora
Florida State Horticultural Society
Licença CC
Sem licença CC