Articles
EFFECTS OF TEMPERATURE ON SOME SENESCENCE PARAMETERS DURING DRY STORAGE OF CUT FLOWERS OF GERBERA ‘SUZANNE’
Article number
847_55
Pages
399 – 407
Language
English
Abstract
Gerbera flower is one of the most popular cut flowers in the world but longevity can be shorter than desired by consumers, mainly for those that are dry- stored.
The effect of dry storage was investigated on one of Brazils most popular Gerbera cultivars, the orange-petaled Suzanne.
Fresh cut flowers were packed in micro-perforated plastic and dry stored for 7 days under different conditions: 2°C, 85% RH; 4°C, 83% RH; 6°C, 80% RH or before transfer to 20°C, 70% RH. Every 3 days thereafter respiration rate, loss of fresh weight, dry weight, relative water content of the petals, water uptake, petal color, and both soluble and reductive carbohydrates were measured.
The appearance, percentage stem break and longevity of the flowers was also recorded.
Low temperatures, between 2 and 6°C, during dry storage, were effective for keeping postharvest quality of Gerbera Suzanne, with appearance and decorative quality best retained with storage at 2°C. Flowers kept at 20°C had an average longevity of 8.6 days, whilst at low temperatures it reached a maximum of 13.8 days (2°C).
The effect of dry storage was investigated on one of Brazils most popular Gerbera cultivars, the orange-petaled Suzanne.
Fresh cut flowers were packed in micro-perforated plastic and dry stored for 7 days under different conditions: 2°C, 85% RH; 4°C, 83% RH; 6°C, 80% RH or before transfer to 20°C, 70% RH. Every 3 days thereafter respiration rate, loss of fresh weight, dry weight, relative water content of the petals, water uptake, petal color, and both soluble and reductive carbohydrates were measured.
The appearance, percentage stem break and longevity of the flowers was also recorded.
Low temperatures, between 2 and 6°C, during dry storage, were effective for keeping postharvest quality of Gerbera Suzanne, with appearance and decorative quality best retained with storage at 2°C. Flowers kept at 20°C had an average longevity of 8.6 days, whilst at low temperatures it reached a maximum of 13.8 days (2°C).
Authors
M.F. Berlingieri Durigan, B.-H. Mattiuz
Keywords
dry storage, low temperature, senescence, Gerbera jamesonii, cut flowers
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