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Jan 13, 2014 11:31 AM CST
|I've always wondered what triggers some plants, such as plumeria, to drop leaves even when the temps don't change much and the hours of light are fairly close as well. Now I wonder if it isn't the change in wavelength, even here at 20° lat I assume that the light moves more towards the blue in the winter?
Thanks for explaining this so clearly.
A day without sunshine is like, you know, night.
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