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Post by canadamike on May 7, 2008 22:32:24 GMT -5
I found a couple of dried up yellow raspberries in my patch, and I sowed them. They are growing right by pink ones so hybridation is a probability.
I have never grown them from seeds before. Does someone knows if the yellow gene is recessive? I would expect so, but who knows?
Anybody has any experience doing that? Is the germination rate high?
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Post by lieven on Jun 24, 2008 16:31:23 GMT -5
Hi Mike,
I take it that yellows are rather like albino fruits, lacking red pigment. Derek Jennings in "Raspberries and Blackberries" reports on crosses between yellow occidentalis & yellow idaeus & vice versa - but that's not what you're looking for, or is it? I didn't find any other real info on yellows in his book. Anyway, I prefer dark raspberries!
Lieven
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Post by canadamike on Jun 24, 2008 20:34:14 GMT -5
I tend to prefer dark too in small fruits, but I have to admit I never tasted one that could beat the yellow one I have, Fall Gold.
It is rich, complex, very sweet, more refined than the reds or purples we have here. But if there is one thing I have learned in small fruits, it is that north american breeding goes for the trade, and european goes for the taste. Apart from Heritage in raspberries and Seascape in strawberries ( maybe some others I forgot), that come from north america, yours have names that are mostly unknown here.
So my opinions here might very well be worthless across the big pond.
If you have tasted a perfect Fall Gold and have better ones, please tell me how to become your very very dear friend ;D ;D ;D ;D
I have planted 50 or so Pathfinders, they are everbearing but have the particularity of being the only ones here to fruit in August. Might be interesting for your crosses... I am only a pm away...
Michel
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Post by evilfruitlord on Dec 15, 2008 0:27:56 GMT -5
There are a couple of genes which can cause yellow fruit in raspberries. The most common (and probably what's in 'Fall Gold', but don't quote me on it) is a simple recessive. So if you take open pollinated seed from 'Fall Gold', all the selfs ought to be yellow-fruited. If you cross 'Fall Gold' with a red, all the seedlings will be red fruited, unless the red parent happens to be carrying a recessive yellow allele.
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Post by evilfruitlord on Dec 15, 2008 0:28:58 GMT -5
By the way, germination with raspberries can be pretty hit-or-miss. It improves considerably with acid scarification.
Most will come up eventually, in my experience, but it may take a couple seasons.
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Post by Alan on Dec 16, 2008 14:13:24 GMT -5
In my limited experience with raspberries, fall gold is by far my favorite. I haven't done much of any research with raspberries so can't comment on the genetics other than to say that my guess is that the yellow gene is recessive and that your probably going to be working with a cross once these grow, but that could be interesting as well.
Is there somewhere where we can find a list of genes for most of our major fruit and vegetable crops so that us non-trained plant breeders can make an easier go of things without all the guesswork we have been doing thus far? Does anyone know of a source?
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