Influence of number of leaves and preservative on the vase life of rose (Rosa sp.) cutflower.
1993
Nitural P.S. | Cabatin L.P.
Results showed that rose cutflowers with no leaves but provided with preservative solutions had the longest vase life of 8.16 days compared with the control (distilled water). Moreover, higher solution uptake was found in all treatments with preservative solutions but not in those in distilled water and with 3-4 leaves. Rose cutflowers with 0 and 2 leaves kept in distilled water displayed the lowest weight loss. Color change from excellent to good was affected by the different preservative solutions but was longer in rose cutflowers with 0 and 2 leaves. Color change of the corolla was comparable (from excellent to poor) regardless of the number of leaves and the different preservative solutions except those preserved in 30 percent 7-Up. The same comparable result was observed across treatments on corolla discolorization except for the flowers treated with 7-Up solution. Cutflowers with 0 and 3 leaves had the longest discolonization period. Furthermore, regardless of the number of leaves attached and preservative solution, delayed flower opening from tight bud to half opened bloom took more than 3 days. Rose cutflowers with two leaves had prolonged number of days from tight bud to full bloom. In general, the different preservative solutions did not show any significant effect on flower opening. Widest flower diameter of 7.60 cm was found in cut-flowers with no leaves and held in either 30 percent 7-Up and 100 ppm silver nitrate + 5 percent sucrose solutions. The pH of all the solutions decreased throughout the duration of the experiment.
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