ISHS Acta Horticulturae 405: VI International Symposium on Postharvest Physiology of Ornamental Plants
INFLUENCES OF LOW LIGHT INTENSITIES ON THE PIGMENTATION OF EUSTOMA GRANDIFLORUM FLOWERS |
| Authors: | S. Kawabata, M. Ohta, Y. Kusuhara, R. Sakiyama |
| Abstract:
We investigated the influences of low light intensity on the pigmentation of petals of cut and pot plants of Eustoma grandiflorum. Under a high light intensity, no differences in color intensity of petals were found between cut and pot plants. When flowers opened under a low light intensity, petal color became lighter in both cut and pot plants. Shading of flower buds during the flowering process had no effects on the petal color intensity. Shading of the stem and leaf parts reduced significantly the petal color. The petal color of detached flowers in the culture solution was darker at an increased concentration of sucrose. The reduction of petal color under a low light condition was possibly resulted from restricted photosynthesis of plants under a low light intensity. | |
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