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Postharvest control of Botrytis cinerea infections on cut roses using fungistatic storage.

Hammer, P. E.; Yang, S. F.; Reid, M. S.; Marois, J. J.;

Journal of the American Society for Horticultural Science Year: 1990 Vol: 115 Issue: 1 Pages: 102-107 Ref: 20 ref.

1990

บทคัดย่อ

Postharvest control of Botrytis cinerea infections on cut roses using fungistatic storage.

The effectiveness of fungistatic atmospheres for postharvest control of B. cinerea infections on cut rose flowers (Rosa hybrida) was investigated. Storing cut Sonia, Royalty and Gold Rush roses at 2.5 deg C with 10% CO2 for 5 d, followed by 2 d of cold storage in air, reduced the number of B. cinerea lesions that developed on inoculated and noninoculated flower petals by 77% and 82%, respectively, compared with cold storage for 7 d in air. Higher CO2 concn and longer CO2 treatment times reduced disease severity further, but resulted in unacceptable leaf discoloration on some cultivars. No deleterious effects of CO2-enriched storage atmospheres on flower quality, weight gain, or vase life were observed. Storage at 2.5 deg for 7 d in 2 micro l SO2/litre reduced B. cinerea infections on inoculated and noninoculated flowers by 53% and 43%, respectively. No deleterious effects on flower quality, weight gain or vase life were observed. Higher SO2 levels reduced disease severity further, but caused ble aching of the petal margins and necrosis around leaf wounds.