The effect of cytokinins, sucrose and 8-HQS on the quality and longevity of rose cut flowers

In this experiment, the effect of various treatments including preservative solution (200 mg/L HQS-8 along with 20 g/L sucrose) alone or in combination with benzyladenine (BA) and thidiazuron (TDZ) as a short-term treatment (pulse) or spray on aging-related traits as well as the lifespan of cut flowers of the Red Janet rose cultivar was investigated. Treatments of preservative solution and also BA at 25 mM as a short-term treatment plus preservative solution maintained the relative fresh weight and water content of petals and leaves, increased the absorption of solution, prevented the reduction of carbohydrates in petals and leaves, and prevented the destruction of soluble proteins in petals and chlorophyll in leaves during the experimental period. The amount of anthocyanin in petals and flower diameter in the treatment of 25 mM BA plus preservative solution was higher than in the preservative solution alone. The longest lifespan after flower harvesting was also observed in the above two treatments. With the use of different cytokinins in addition to the preservative solution, not only was there no increase in the lifespan of flowers compared to the preservative solution alone, but their lifespan was also slightly reduced.