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Mercersburg, PA

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.
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6/29/2010 9:25:15 AM

Netherlands

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.

6/29/2010 9:50:29 AM

Picton,ON ([email protected])

I have heard 3 generations of green to get all the "orange" out!

7/2/2010 11:22:25 PM

Netherlands

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.

7/3/2010 8:48:39 AM

Navarre,OH

What about a giant squash/marrow cross? :P

7/3/2010 9:42:14 AM

Corryton, TN

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.

7/3/2010 4:29:41 PM

Soldiers Grove, WI

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!

7/7/2010 2:11:20 PM

New York

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.

7/7/2010 8:12:30 PM