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leaf color
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Posted by trisha_51 z4 (My Page) on Wed, Oct 25, 06 at 12:05
| As i walked to work this morning i enjoyed the crisp air, the frost on the grass, the sunshine, and the colorful leaves. One tree, that hadn't changed color, was 'dripping' leaves. Awesome. I just stood and watched. But the time clock moves on. I began to wonder: why do some trees turn gorgeous reds and oranges while others just turn brown. Browns are nice, but not especially in leaves. :) There's something 'fun' about walking thru leaves. I wonder what it is? Does anyone know the answer to the leaf color question? Thanks. |
Follow-Up Postings:
RE: leaf color
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| Here is a web address for a short article on the subject: http://www.esf.edu/pubprog/brochure/leaves/leaves.htm Short version: green color is caused by chlorophyll. When the chlorophyll takes its winter vacation the green color exits the leaves and the other pigments that are there can then be seen. |
RE: leaf color
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| And some plant species are not genetically programmed for those other pigments. |
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