Posted 14 March 2004 - 10:30 AM
The problem is that they are not seedless. Every grape has at least one seed.
I also have two other varieties in the vicinity that are clones of vines I know to be over 100 years old. One is a purple grape that I assume is a Concord and the other is a pink grape. (Would anyone like to speculate on the variety) The pink is about 6 years old, and the purple is 4. These run on an arbor that is parallel to the seedless arbor about 40 feet away. Is it possible that the presence of these vines causes the "seedless" variety grapes to have seeds.
Posted 14 March 2004 - 12:05 PM
I think most recommend at least 100ft between seed and seedless, but it ultimatly depends on wind travel around polination times.
What area do you live in?? The pink may be a Catawba--A nice mild spicy grape, makes a pleasant Sunday afternoon type of wine
Posted 14 March 2004 - 03:33 PM
I am in south central Kentucky. The pink is from a vine about 30 miles south of here in Tennessee. I suspect it was not planted for its wine making virtue. Is Catawba often used as a table grape?
Posted 15 March 2004 - 03:42 PM
Could it perhaps be a Canadice Red Seedless Grape?
You might find more Help on the Ampelography Group on Yahoo!
Hope this helps!
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Posted 15 March 2004 - 08:30 PM
Posted 16 March 2004 - 07:20 AM
A lot of things come into play--distance, wind, polination times, ect. For example, avoid crosspolination by planting varieties that pollinate a week or two apart--that is how I often avoided sweetcorn cross-pollination.
Posted 16 March 2004 - 08:52 AM
Thanks for giving me something to think about.
Posted 17 March 2004 - 02:52 AM
WWJD I agree about the corn, I've had similar bicolor corn. Something interesting must play a role here we don't know about yet...
Marc, thanks for asking an expert to enlighten us!
Posted 17 March 2004 - 04:01 AM
Is it possible that true seedless grapes cannot be a female in breeding programs? Or, might the presence of male pollen stimulate the production of a seed? Of course I ask this for the sake of argument because that is the basic question in the first place.
There is a little more complexity to the original question. I planted 3 different seedless varieties on one arbor. Are they affecting one another? Surely not since they are sold that way.
I have been thinking about cutting down the seeded varieties and grafting a seedless on their roots.
Posted 17 March 2004 - 12:08 PM
Must be something specific about the grape that will not cross pollinate.
Posted 17 March 2004 - 01:01 PM
Posted 18 March 2004 - 08:22 AM
Posted 18 March 2004 - 06:46 PM
OK this confirms my theory but then how is it possible to get 1 or 2 seeds in a seedless if it is close to a seeded variety? AND then plant that seed to get a new type of grape? If you have found some articles on the topic I would like to look into it. Just made me curious about the grape genetics
Posted 19 March 2004 - 12:20 AM
This could also explain why there may be some "soft" seeds found in a seedless variety.
does this make sence to anyone besides me?
Posted 19 March 2004 - 06:52 AM
1. Buy new seedless vines. I guess this is the thing to do if the old "seedless" is simply faulty.
2. Cut down the seeded variety nearby. This is the answer if the problem is cross pollination. If I go this route I will try my hand at grafting and put a seedless vine on the seeded variety root stock.
Please help me choose. Is it #1 or #2?
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