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Postharvest physiology of gladiolus flowers as influenced by cobalt and sucrose.

Murali, T. P.; Reddy, T. V.;

Horticulture - new technologies and applications. Proceedings of the International Seminar on New Frontiers in Horticulture, organized by Indo-American Hybrid Seeds, Bangalore, India, November 25-28, 1990 Year: 1991 Pages: 393-396 Ref: 10 ref.

1991

บทคัดย่อ

Postharvest physiology of gladiolus flowers as influenced by cobalt and sucrose.

Gladioli (cv. Friendship) were harvested when the first floret started to open and placed in distilled water or aqueous solutions containing 2 or 4% sucrose and 0.25, 0.5 or 1.0 mM Co, alone and in all combinations. The weight of the container, with and without the flower spike, was determined every 3 days. The longevity of the florets was assessed by noting the days of opening and fading. Sucrose and Co, either alone or combined, increased water uptake and transpirational loss, and increased the FW of the spikes compared with the control; the water loss/water uptake ratio fell below 1 with 0.5 mM Co alone or in combination with 4% sucrose. The longevity of the florets was increased to 6 days with 4% sucrose + 0.5 mM Co compared with 4 days for the control. Vase life was also greater with sucrose and Co in combination than with either alone, the maximum being 12.33 days with 4% sucrose + 0.5 mM Co compared with 7 days for the control.