HYB: CULT: pigments (was Abbey Road...)
- Subject: HYB: CULT: pigments (was Abbey Road...)
- From: L* M*
- Date: Fri, 16 Mar 2001 07:50:28 -0500
Donald Eaves asked:
<So how much of what is true about
the color of an egg yolk applies to the color of an iris? And are
certain
colors more likely to have variation or is it a combination of cell size
and
nutrients? Anyone know or care to hazard a guess?>
Seems like I recall that some pigments are the color they are because of
metals in the molecules (iron in red blood, magnesium? in chlorophylls &
vulcan blood <g>), so maybe if there is more of whatever trace element
it is that makes carotenes look yellow, the plant can make more of it?
& some cultivars may have more flexibility in how much energy they put
into making pigments, regardless of how much is available.
Yep, totally hazarded guess...
Linda Mann east Tennessee USA zone 7/8
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