Open Source Plant Breeding Forum

General Category => Plant Breeding => Topic started by: William S. on 2019-09-28, 04:28:20 PM

Title: Interspecies squash hybrids
Post by: William S. on 2019-09-28, 04:28:20 PM
Spent some time looking at Josephs squash ID guide. http://garden.lofthouse.com/how-to-identify-squash.phtml

This year I grew intentionally maxima squash, pepo squash, moschata squash and two interspecies hybrids from Joseph Mospermia and Maximoss. Though I used much of my maximoss seed last year, a few grew again this year, possibly because I mixed some in with the mospermia last year then never got it planted and last year's grew at least well enough to contaminate my maxima a little.

I also grew a Thai cross moschata from Mike a hybrid Moschata from Territorial called Autumn's Choice, and a old land race called Rancho Marques. All with some moschata characteristics.

I think that the thai cross squash from Mike might be an example of ancient mospermia. Also the Rancho Marques but it didn't produce a fruit for me. Also the Autumn's choice I think may in fact be a more modern Mospermia type. It's leaves look maple like and the fruits have that interesting pattern of yellow and green bands.  My actual mospermia and maximoss look like they should. The Mospermia tend toward moschata peducles. I see one small squash that looks just like a tetsukabuto. Though mostly I think that my maxima grex has just a little maximoss contamination now. Which is fine. There is one mospermia fruit that looks like Autumn's choice.
Title: Re: Interspecies squash hybrids
Post by: Diane Whitehead on 2019-09-29, 07:28:48 PM
I guess maximoss is a hybrid between maxima and moschata.

But what is mospermia?
Title: Re: Interspecies squash hybrids
Post by: William S. on 2019-09-29, 08:20:13 PM
Joseph's name for his strain of Moschata x Agrosperma (mixta).
Title: Re: Interspecies squash hybrids
Post by: Ferdzy on 2019-10-23, 06:16:00 PM
We ended up being a bit short on zucchini seed this year, so we planted some old ones we had saved in 2013, from Lebanese White Bush (pepo). What we got was not LWB, not too surprisingly. We got a couple of vines that ran absolutely rampant. The squash were not nice as zucchini, as they grew fast and filled up with seeds almost instantly. One (the smooth skinned one) is probably just some random pepo cross of no distinction. It already has a couple of bad spots on it.

The other one, though; that one looks like a cross between LWB and Tennessee Sweet Potato (a mixta/argyrosperma). Haven't eaten any of them as mature squash yet. They seem amazingly solid and I think I may have to take an axe to them to break them open. Dunno what I think of them; unless they are marvelous (unlikely) I don't think we will grow them out again. If they have viable seed I assume they will have crossed with other pepo squashes grown this year.
Title: Re: Interspecies squash hybrids
Post by: Diane Whitehead on 2019-10-23, 07:12:53 PM
Well, I guess you could eat the seeds so the plants' efforts won't have been completely unappreciated.
Title: Re: Interspecies squash hybrids
Post by: Ferdzy on 2019-10-23, 07:29:46 PM
We usually do, unless they have very tough skins. Which, given how tough the outsides are, might be possible. I'll post again once we've cracked one open.