The effects of calcium on postharvest water status and vase life of Rosa hybrida cv. grand gala | [International Journal of Agriculture and Biology • 2011]

Author(s):

1. Martha Huerta Cortes: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

2. Alberto Arriaga Frias: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

3. Sergio González Moreno: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

4. Manuel Mandujano Piña: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

5. Gumercindo Honorato De La Cruz Guzmán: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

6. Salvador Gracian Sandoval: Avenida de Los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, Código postal: 54090, UNAM, Facultad de Estudios Superiores Iztacala, Unidad de Morfología y Función, Laboratorio 8, México

Abstract:

The reduction of the ornamental value of cut flowers is mainly due to their short vase life. The variation in longevity has been associated mainly with vascular obstruction that affects water conduction through the stem. The effect of calcium and 8- Hydroxyquinoline sulfate (HQS) to the vase water was evaluated for different variables including the fresh weight, water flow and longevity of Rosa hybrida cv. Grand Gala. The following treatments were tested: CaCl2 (10 mM), Sucrose (Suc) (4%), CaCl2 (10 mM) + Sucrose (4%) and CaCI2 (10 mM) + Sucrose (4%) + HQS (300 ppm). The water consumption, fresh weight, transpiration and the relative water content (RWC) were greater with the CaCl2 + Suc + HQS treatment than that of Sucrose treatment. At the end of the experimental period, the CaCl2 + Suc + HQS treatment induced a greater water flow and the most color infiltration through the vascular tissue compared to the sucrose treatment. The treatment with CaCl2 + Suc + HQS also had the greatest vase life. It is concluded that the combined effect of Ca as a flow resistance reducer and HQS as a germicidal agent contributed to improved vase life.

Page(s): 233-238

DOI: DOI not available

Published: Journal: International Journal of Agriculture and Biology, Volume: 13, Issue: 2, Year: 2011

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