Quote:
Originally Posted by ronaldhanko
On this particular plant the light intensity is the same year around - so are watering and fertilizing regimes. It is very definitely the temperature that affects the flower color and I have noticed the same with other hybrids of Sophronitis coccinea. This has been demonstrated with other flowers as well: carnations for example ( http://sciencelinks.jp/j-east/articl...6A0491900.php). Some commercial growers of cut orchids even recommend placing the plants in a cool house for a time before cutting the flowers in order to strengthen flower color. |
Ronald, Are your sure about that "constant" light "regime" on your plants?.... unless you grow your plants on a dark room illuminated only with light bulbs that's cant be accurate to say, specially on well marked season countries. Even in the tropics the angle of the sun changes, and that implies more or less light intensity.
Ronald, on the other hand aquinations (splash Cattleyas) genes on species and their hybrids are mediated by heath, the more heath, the more obvious the aquinations would be... but that is a very different trend compared with color intensity, aquinations are the expression of color "area" compromised, not color intensity... they aren't synonymous phenomena