Influence of preservative solutions on vase life and postharvest characteristics of rose (Rosa hybrid) cut flowers

Abstract

Dargie Tsegay, Bizuayehu Tesfaye, Ali Mohammed, Hailay Gebremedhin

The experiment was carried out to assess the influence of five preservative solutions (aluminium + ethanol, aluminium + sucrose, ethnol + sucrose, aluminium + ethanol + sucrose and water) and two rose cultivars (‘Red Sky’ and ‘Blizzard’). The scope of the study was to identify the best combination of preservative solutions on rose cultivars. The treatments were arranged in factorial combination in CRD with three replications. Ten (10) cut flowers of each treatment were pre-treated using prepared preservative solution for 24 h in cold room (3 ± 1°C) before storage. Interaction effects of Preservative solutions and cultivars were significant (P < 0.05) on solution uptake on day 16; petal fresh weight on day 4; total soluble solids (TSS) on day 4, 8 and 12 and on vase solution absorbance. Preservative solutions had significant effects on solution uptake on day 1, 4, 8 and 12; TSS on day 1 and 16; petal fresh weight on day 1, 8, 12, and 16. Flower longevity and maximum flower head diameter, relative fresh weight and petal fresh weight loss were significantly (P < 0.05) reduced. Cultivars had significant (P < 0.05) difference on solution uptake and TSS. Aluminium + ethanol + sucrose preservative solution treated cut flowers had shown longest vase life, flower opening, solution uptake, petal fresh weight and TSS on both cultivars; while the values were significantly higher in ‘Red Sky’ cultivar. The findings provide an alternative for extending the vase life of cut roses and thereby ensure the satisfaction of flower users and sustainability of cut rose flower production.

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