Pulsing Effect of Sucrose and Sodium Benzoate on Senescence of 'Christian Dior' Cut Roses

บทคัดย่อ

'Christian Dior' cut roses at bud stage were pulsed in solutions containing sucrose and sodium benzoate alone or together for 12 or 24 hours before transferring to rain water. The pH of pulsing solutions was adjusted to 4.0 by citric acid. The solution containing 5% sucrose together with 300 ppm sodium benzoate and pulsed for 24 hours gave maximum vase life of cut roses up to 5.9 days with the least bent nect of 18.0% and slight blueing. Cut roses in the control had vase life only 2.1 days with the most bent neck of 69.0% and severe blueing.