In article . com,
Sheldon wrote:

r-swrote:
... there could be an explanation... blue and red are the two areas of
the spectrum drives photosynthesis. the reflecting red could put the
light under the leaves where sun doesnt usually fall.
Ingrid

So what, the bottom portion of leaves do not facilitate
photosynthesis, otherwise the leaves would have evolved to be
connected to their stems by little universal joints so they could
revolve 360 deg at a constant rate, like pinwheels (why would mother
nature waste 50pct of their surface area). Dintcha ever notice that
only the top portion of leaves synchronize with the postion of the sun
(the bottom (underside) of leaves is involved with respiration). And
the sun already radiates the full color spectum of visible light

As well as light, which like so many other things Sheldon, that you
can't see.

(doesn't need any help, hasn't for billions of years)... I think that
red plastic is a lot of hooey, designed to attract those with more
dollars than brain cells... ask any three year old, they almost always
choose the red candy.
--
Billy
http://angryarab.blogspot.com/