Re: Genes
Mary,
I agree. Just because you can do something, does not mean that it is the
thing to do. If someone puts daylily flowers on Hosta without defeating the
system that makes the flowers last only one day would, I think, be a fool.
Hmm.. Why has no one fixed this problem in daylily?
On the trigger temperature for Anthocyanin pigments. I would suspect that
it would be different for different species. The levels of the pigment are
usually tied to the balance of carbohydrates in the plant tissue. Plants
are adapted to different temperature optimums, so the balance points would
vary between species.
Another point that might help the hybridizer. The ability to control the
level of anthocyanins is also under genetic control. Look at Japanese
maples where there is a tremendous difference between varieties in their
ability to stay red at warmer temperatures. I would suspect that it would
be wise to select for both increased amounts of red color, and for heat
tolerance for pigment levels.
Jim Anderson
----- Original Message -----
From: <LakesideRM@aol.com>
To: <hosta-open@mallorn.com>; <nise@onelist.com>
Sent: Saturday, December 04, 1999 12:14 AM
Subject: Genes
> You that are talking of putting a daylilie flower on a hosta, please stop
to
> consider what a daylilie blossom looks like the day after. Unless you wish
to
> deadhead each evening just imagine what the hosta foliage will look like
> within a few days. Those slimy, dripping old flowers will mark and spoil
the
> true beauty of the host, its leaves. If you want a daylilie flower why not
> just grow a daylilie?
>
> A little more about the red genes. Anthocyanin pigment develops when the
part
> of the plant is exposed to the sun. I think I understand this correctly.
Once
> the temperature becomes to high we loose the red. In reading about the
> Chinese primrose we learn that it flowers red if the bud is formed below
86
> degrees but above that temperature the flower is white. Can we draw a
> conclusion that 86 is about the time that the red in our hostas begin to
> disappear?
> Just looking for future information.
> Mary
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