Re: RE: Red-toned rebloomers (was RE: First 08 rebloomers)

Paul Archer wrote:
I would cross your reds to rose-pinks, mauves and red-violets. The closer you get to blue the harder it is to get the pinker shades. Purples can work too. Just be careful that the purple is not a combination of blue and a carotenoid.
You can also use yellows (and oranges definately) that have at least one lycopene (flamingo pink) parent or has been known to produce lycopene pinks. Yellows and oranges can give purples, maroons and browns if combined with blues and purples.
As I understand it, most yellows, pinks, etc. carry a dominant I gene that inhibits expression of anthocyanin. So in a cross between yellow/orange and blue/purple, you would expect at least half the seedlings to be shades of yellow or white? With many more yellows/whites than that if the carotenoid parent is carrying more than one copy of I. Is it known how many copies of I most yellows/pinks do generally carry?
A blue or purple could be used if you look at it's pedigree and know that one of its parents is a rose-pink,mauve shade or red-violet. Then it will be recessive and can reappear, but you would need to grow enough seedlings to increase your chances of getting something you want.
Not to complicate or confuse but if you have a plant that is purplish because of carotenoid AND anthocycnin presence just make sure it has both a lycopene parent (or potential) and a rose-pink parent and see what happens as the genes get all mixed up and throw all sorts of shades. Then when you have a few seedlings that are close or you like from that cross you can cross them amoung themselves. 

Thank you, Paul.  You have definitely provided much food for thought.

Ann

South Australia

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