1.Flower Research Institute/National Engineering Research Center for Ornamental Horticulture,Yunnan Academy of Agricultural Sciences,Kunming 650205,China
In order to find the optimal preservative formula suitable for Ilex verticillata cuttings, prolong its vase life, and improve its ornamental value, in this study, an Ilex verticillata Oosterwojk cuttings were used as the materials, the effects of different preservatives on the fresh weight, vise life, the fruit setting rate, the wrinkled fruit rate, the diseased fruit rate, and the fruit color of the cuttings were studied by using 6 preservative formulas including water(CK), HVB(T1), Floralife(T2), 1.0 g/L of sucrose + 100 mg/L of 8-hydroxyquinoline(8-HQ) + 100 mg/L of citric acid(T3), 2.0 g/L of sucrose + 200 mg/L of 8-hydroxyquinoline(8-HQ) + 100 mg/L of citric acid(T4), and 3.0 g/L of sucrose + 300 mg/L of 8-hydroxyquinoline(8-HQ) + 200 mg/L of citric acid(T5) as the vase treatments. The results showed that different preservatives had different effects on fruit characteristics and their color. T2 preservative had obvious advantages in maintaining the fresh weight and the fruit setting rate of the cuttings, reducing the wrinkled fruit rate and the diseased fruit rate, it significantly prolonged the vase life of the cuttings and achieved the best preservation effect. T4 preservative had a greater advantage in maintaining the fruit color. In conclusion, the two preservatives of Floralife and 2.0 g/L of sucrose + 200 mg/L of 8-hydroxyquinoline(8-HQ) + 100 mg/L of citric acid effectively improved the vase quality of I. 'Oosterwojk' cuttings and extended their vase life.
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