ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effects of pre- and postharvest calcium applications on the vase life of cut gerberas.

Gerasopoulos, D.; Chebli, B.;

Journal of Horticultural Science and Biotechnology Year: 1999 Vol: 74 Issue: 1 Pages: 78-81 Ref: 18 ref.

1999

บทคัดย่อ

Cut scapes of the gerbera cultivars Campitano, Dino, Sangria and Testarossa were sprayed preharvest and dipped or injected postharvest with 0 (control), 0.5, 1.0 or 1.5% CaCl2. Vase life and bending incidence were determined during storage at 25 deg C. Scape calcium content was determined at the end of vase life. Significant extension of vase life and decrease in bending incidence was observed in inflorescences of Campitano, Dino and Testarossa gerberas injected with 1.0% CaCl2, followed by dipping in 1.0% CaCl2 postharvest compared with the control. Sangria gerbera scapes sprayed preharvest with 1.0-1.5% CaCl2 had the longest flower longevity and the lowest bending incidence. Scape calcium concentration of Campitano, Sangria and Testarossa increased by 250, 130 and 370%, respectively, compared with the control; calcium treatments resulted in a 3- to 4-day increase in vase life and a 3- to 5-day delay in bending incidence relative to the control; treatments with 1.5% CaCl2 considerably increased

 scape calcium content but did not contribute any additional increase to the vase life of the flowers. Although postharvest dipping with 1.0% CaCl2 had moderate results compared with the other treatments it can be considered as a promising postharvest treatment to extend the vase life of cut gerberas due to the ease of application.