Squash Growing Forum
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Subject: crossing
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From
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Location
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Message
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Date Posted
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bigbear09 |
Mercersburg, PA
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so if you cross a squash and a pumpkin, how many generations do you have to "out-cross" it before you get straight greens again (generally)? I have my first greenie in the ground this year. jjlorson@yahoo.com
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6/29/2010 9:25:15 AM
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Dutch Brad |
Netherlands
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Let's take the 1012 Pitura* as an example. It was a 1055 Pitura* x 1231 Pukos. It produced a wonderful orange 1310 Pitura pumpkin. The 1310 Pitura produced 1/2 pumpkins, some very orange, and some grey squash. One of the most important squash off the 1310 is the 947 Cuypers* which seems to be throwing all squash.
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6/29/2010 9:50:29 AM
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CountyKid (PECPG) |
Picton,ON (j.vincent@xplornet.ca)
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I have heard 3 generations of green to get all the "orange" out!
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7/2/2010 11:22:25 PM
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Dutch Brad |
Netherlands
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In my opinion, by the time the orange is out, so is the benefit of the presumed larger pumpkin genetics. I just don't see these squash/pumpkin crosses going anywhere special.
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7/3/2010 8:48:39 AM
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Billium frm Massillon |
Navarre,OH
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What about a giant squash/marrow cross? :P
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7/3/2010 9:42:14 AM
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brotherdave |
Corryton, TN
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The way I understand it, 2 generations with 50% pumpkin genetics. This is assuming the green gene is a simple recessive gene. I hope so because I'm basing all my crosses on this assumption this year.
With RR = to a single gene controling pumpkin color (dominate) and gg = to a single gene controling squash color (recessive) The first cross would result in all the offsping having a genetic makeup of Rg and having a pumpkin color. Now for demonstration purposes lets say you have a 1725 Harp X 1236 Vincent-McGill cross, genetics would be Rg. Cross that plant, with a plant from the seed of 1068 Wallace X 848 MacKenzie, genetics Rg. One in four seeds would have the gg gene pattern throwing green squash with very strong genetics. Two seeds would be Rg and 1 RR, these would all be pumpkins. Please correct me if I'm wrong.
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7/3/2010 4:29:41 PM
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Caleb |
Soldiers Grove, WI
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This year I put in a 1125 Razo which has the 1068 Wallace in it's lineage. I got lucky and soaked the right seed! She is a green squash through and through!
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7/7/2010 2:11:20 PM
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Julian |
New York
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Incidentally, I had to cross my squash with a pumpkin recently due to a lack of males on the former. It obviously won't have an effect on the fruit itself, but the seeds will probably become test subjects.
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7/7/2010 8:12:30 PM
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Total Posts: 8 |
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