<abstract xmlns="http://www.w3.org/1999/xhtml">Cut rose stems were pretreated for 24 h with various compounds before being stored in Chrysal solution. Two experiments were conducted to study the effects of different concentrations of aluminum sulphate, ethanol and sucrose in preservative solutions and their combination on flower longevity and post-harvest physiological properties of rose (<italic>Rosa hybrida</italic> L.) cut flowers cultivars ‘Red Sky’ and ‘Blizzard’. The first experiment aimed to determine the optimum concentration of aluminum sulphate used as a biocide (0, 0.5, 1, 1.5 g·dm−3), ethanol used as a biocide and anti-ethylene factor (0, 4, 8, 12%) and sucrose used as a source of energy (0, 10, 20, 30 g·dm−3). In the second experiment, the most effective concentrations were cumulated in combinations of pretreatment solutions. Single use of chemicals: 0.5 g·dm−3 aluminum sulphate, 4% ethanol and 20 g·dm−3 sucrose extended the longevity of both cultivars by 17, 18 and 19%, respectively as compared to deionized water. In the second experiment, the preservative solution containing all three chemicals at optimal concentrations extended cut flower longevity by 30% compared to deionized water. ‘Blizzard’ has lost its commercial value by 6.6% of the time earlier than ‘Red Sky’. Generally, using a biocide, anti-ethylene and source of energy in a pretreatment solution can maintain the high quality of the cut rose flowers and their vase life.</abstract>

Cut rose stems were pretreated for 24 h with various compounds before being stored in Chrysal solution. Two experiments were conducted to study the effects of different concentrations of aluminum sulphate, ethanol and sucrose in preservative solutions and their combination on flower longevity and post-harvest physiological properties of rose (Rosa hybrida L.) cut flowers cultivars ‘Red Sky’ and ‘Blizzard’. The first experiment aimed to determine the optimum concentration of aluminum sulphate used as a biocide (0, 0.5, 1, 1.5 g·dm−3), ethanol used as a biocide and anti-ethylene factor (0, 4, 8, 12%) and sucrose used as a source of energy (0, 10, 20, 30 g·dm−3). In the second experiment, the most effective concentrations were cumulated in combinations of pretreatment solutions. Single use of chemicals: 0.5 g·dm−3 aluminum sulphate, 4% ethanol and 20 g·dm−3 sucrose extended the longevity of both cultivars by 17, 18 and 19%, respectively as compared to deionized water. In the second experiment, the preservative solution containing all three chemicals at optimal concentrations extended cut flower longevity by 30% compared to deionized water. ‘Blizzard’ has lost its commercial value by 6.6% of the time earlier than ‘Red Sky’. Generally, using a biocide, anti-ethylene and source of energy in a pretreatment solution can maintain the high quality of the cut rose flowers and their vase life.

Effects of Aluminum Sulphate, Ethanol, Sucrose and their Combination on the Longevity and Physiological Properties of Rose (<italic>Rosa hybrida</italic> L.) Cut Flowers

Journal of Horticultural Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects of Aluminum Sulphate, Ethanol, Sucrose and their Combination on the Longevity and Physiological Properties of Rose ( L.) Cut Flowers

Cut rose stems were pretreated for 24 h with various compounds before being stored in Chrysal solution. Two experiments were conducted to study the effects of...

Effects of Aluminum Sulphate, Ethanol, Sucrose and their Combination on the Longevity and Physiological Properties of Rose (Rosa hybrida L.) Cut Flowers

Published Online: Jun 30, 2020

Page range: 29 - 38

Received: Dec 01, 2019

Accepted: May 01, 2020

DOI: https://doi.org/10.2478/johr-2020-0013

Keywords
flower quality, pretreatment solutions, vase life

© 2020 Hailay Gebremedhin, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects of Aluminum Sulphate, Ethanol, Sucrose and their Combination on the Longevity and Physiological Properties of Rose (Rosa hybrida L.) Cut Flowers

Published Online: Jun 30, 2020

Page range: 29 - 38

Received: Dec 01, 2019

Accepted: May 01, 2020

DOI: https://doi.org/10.2478/johr-2020-0013

Keywordsflower quality, pretreatment solutions, vase life

© 2020 Hailay Gebremedhin, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
flower quality, pretreatment solutions, vase life