Influence of ripening on the ethylene and carbon dioxide production during storage of plum fruits
The fruits of 13 plum cultivars were analysed at two different stages of maturity: first when they were ready for picking according to conventional commercial criteria, and again after seven days of maturation at 20 °C in a normal oxygen atmosphere during shelf life. Firmness, soluble solids concent...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Mendel University Press
2012-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| Subjects: | |
| Online Access: | https://acta.mendelu.cz/60/8/0133/ |
| Summary: | The fruits of 13 plum cultivars were analysed at two different stages of maturity: first when they were ready for picking according to conventional commercial criteria, and again after seven days of maturation at 20 °C in a normal oxygen atmosphere during shelf life. Firmness, soluble solids concentration (SSC), respiration rate and the production of ethylene were measured. In the period of over-ripening SSC increased, and no differences were found in relation to the cultivar. The fruits in this period were physiologically in a phase of reduced intensity of respiration, while production of ethylene increased and was associated with the earliness of the cultivar. Cultivars with a short vegetation period produce more ethylene while late-maturing cultivars have a low potential for ethylene production. Based on post-harvest changes in the tested quality factors, the late-ripening plum cultivars (cv.) ‘Jojo’, ‘Topend’, ‘President’, ‘Tophit’ and ‘Elena’ have higher storage potential. Changes in ethylene production in response to shelf life seem to play a regulatory role in fruit firmness. A high significant negative correlation was detected between levels of skin firmness and ethylene production. |
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| ISSN: | 1211-8516 2464-8310 |