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Effect of different rates of sucrose on vase life of rose 'Serena' at low temperatures.

Deambrogio, F.; Accati Garibaldi, E.;

Acta Horticulturae Year: 1991 Issue: No. 298 Pages: 297-302 Ref: 7 ref.

1991

บทคัดย่อ

Effect of different rates of sucrose on vase life of rose 'Serena' at low temperatures.

Rosa hybrida (cv. Serena) stems harvested at the closed bud stage were recut and placed in a solution of 200 mg 8-hydroxyquinoline sulphate/litre + 20, 40, 60, 80 or 100 g sucrose/litre for 6 h at 20 deg C. Control stems were placed in distilled water. After 6 h, the stems were placed in open polyethylene bags at 2 deg for 1 h. The bags were then sealed and the stems kept at 2 deg for 3, 6 or 9 days. Stems pulsed with 60, 80 or 100 g sucrose/litre and kept at 2 deg for 3 days had a longer (but not significantly different) vase life than the controls (11.47, 12.13 and 13.40 days compared with 11.00 days in the controls). Stems pulsed with 80 or 100 g sucrose/litre and kept at 2 deg for 6 days had a vase life of 10.53 and 10.80 days, respectively. The other treatments resulted in a shorter vase life. A relationship was detected between vase life and FW variation. Stems pulsed with 40, 60, 80 or 100 g sucrose/litre and stored at 2 deg for 3 days had a greater flower diameter during vase life than the controls.