ISHS Acta Horticulturae 464: International Postharvest Science Conference Postharvest 96
PHYSIOLOGY AND BIOCHEMISTRY OF SUCROSE-FED SANDERSONIA AURANTIACA FLOWERS |
| Authors: | J.R. Eason, B.K. Sinclair, L.A. De Vré, S.D. Somerfield, G.A. King |
| Abstract:
Sucrose-treatment delayed the onset of senescence of Sandersonia aurantiaca flowers. Sucrose-fed flowers were larger, firmer and of a brighter orange colour than control flowers that were stored with their stems in water. The endogenous levels of carotenoids, soluble carbohydrate and soluble protein were greater in the sucrose-fed flowers compared to control flowers. The levels of sugars and proteins declined after the first visible signs of floral senescence (fading and wilting) in both control and sucrose-fed flowers. This indicates that although sucrose treatment delays the onset of senescence, neither the total level of endogenous soluble sugar or soluble protein is a limiting factor which triggers flower senescence in sandersonia. | |
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