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RE:Hyb: Frank Adams and malvidin.

The quanity of malvidin found was very small compared to the amount of delphinin found in the cultivar Frank Adams.
They tested about 30-40 cultivars which is only a small number of plants. They used thin-layer chromotography which is a bit outdated allthough do-able in home lab. I have some supplies in and more are on the way so I can do some testing of my own.
They did a complicated extraction and used a process which stripped off a number of the chemical attatchment to the delphinin molecule so they wouldn't be confussed by the differnt forms of deplhinin. My own interest is in which forms of delphinin are present and do they react differently with different pattern controls. I couln't do the process of striping they did in the simple home   lab I'm setting up. I'm not even sure it was needed.

A better process to use for what they were doing would be HPLC or Gas chromatography which wasn't available at that time.

The best tool still is probably the hybridizers eye. A different shading or colour is often worth pursuing.  I'm using pigment extraction to help me fine tune my eye to pick up some of these different pigments.  Malvidin is probably still out there in a lot of cultivars. It probably will be best seen as a funny touch of colour in a plant that has a lot of the delphinin removed. Often such things shows up in a bad flower. I like evaluating all seedlings for different pigments and patterns and not just for a pretty face. I'm getting   some good greens coming now from this process. Actually it would appear to be two different types . The two types seem to have different pigments and genetics. One is tied with the tangerine factor and is usually only on amoenas. This one is a yellow-green. the other is more of a mustard green. There also another green which may be associated with darker green leaf (Limesicle and dececendents.)

So best bet is to become very familair with pigments and patterns and the shaddings from the mix of pigments and that way you are able to see what is different.

Chuck Chapman

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