Author Topic: Interspecies squash hybrids  (Read 1281 times)

Joseph Lofthouse

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Re: Interspecies squash hybrids
« Reply #15 on: 2019-12-04, 07:42:55 AM »
It's interesting that the flesh is pale colored like the Pepo parent.   That alone is pretty unusual in any kind of winter squash.   I guess in an F1 cross that means white is dominant in the flesh color, or is the color a QTL and will produce many shades?   Growouts are always fun. ;)

The argyrospermas that I have grown have pale colored flesh.

reed

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Re: Interspecies squash hybrids
« Reply #16 on: 2019-12-05, 09:04:27 AM »
...One of the things that is a little sad to me is not having endless space for new projects. Also having to choose which of a number of deserving projects get attention in a given year.
Yea, that is a bit of a bummer and big part of why I've decided to focus on fewer things. Those being the ones I've had best luck with in recent years and or that we like the best. The more diversity the better, no doubt in my mind about that not just within a crop but in the number of different ones. I just don't have the space for it.

Chance

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Re: Interspecies squash hybrids
« Reply #17 on: 2019-12-07, 09:13:37 AM »
Joseph, what’s your take on Ferdzy’s squash, see any telltale signs of cushaw to your eye?  Maybe plant one by your mospermias....

Joseph Lofthouse

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Re: Interspecies squash hybrids
« Reply #18 on: 2019-12-08, 05:24:45 PM »
Joseph, what’s your take on Ferdzy’s squash, see any telltale signs of cushaw to your eye? 

The description of the taste, and the color of the flesh are consistent with argyrosperma parentage. The fruit shape, and stripes on the fruits are reminiscent of argyrosperma. I'm cussing the low-resolution photos that this forum imposes, otherwise I'd look for traits in the peduncles.

I am unfamiliar with 'wartiness' among argyrosperma. Don't know where that trait came from.

The fruit sure seems to be filled with viable looking seeds. I'm not used to seeing that in early generations of interspecies hybrids. I'm used to few viable seeds. Finding and using varieties that combine well together seems to be one of the secrets to successful interspecies hybridization.
« Last Edit: 2019-12-08, 05:40:52 PM by Joseph Lofthouse »

Ferdzy

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Re: Interspecies squash hybrids
« Reply #19 on: 2019-12-09, 08:51:58 AM »
Here's a better photo of the stems, better being a relative term I'm afraid. They look pretty pepo-ish to me but you would know much better - I haven't spent that much time looking at various squash.



Joseph Lofthouse

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Re: Interspecies squash hybrids
« Reply #20 on: 2020-04-27, 07:03:58 PM »
I grew a (male-sterile) Tetsukabuto (maxima X moschata) inside a patch of spaghetti squash (pepo). I harvested one small fruit from it. When I cut it open tonight, there were no seeds inside.

Ferdzy

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Re: Interspecies squash hybrids
« Reply #21 on: 2020-04-28, 06:41:08 AM »
Well, since Joseph has brought this up again... I guess I will mention that in my efforts to "sell" our interspecies cross seeds to someone else, I have managed to persuade myself to grow them out. More to the point I have talked Mr. Ferdzy into it too. He was not keen, but once he understood that we were not aiming for storage squash but for summer squash (zucchini) he got on board.

I don't know if what we have is self-fertilized or fertilized by one of the other zucchini we grew last year. In any case, I am likely to want to cross whatever I get with bush zucchini in an effort to tame those very long vines a bit. We're planning to grow Reinau Gold, Mutabile, Caserta, Costata Romanesco, and I think we have a couple of now rather old seeds of Jade Numbat that I got from a trade on Homegrown Goodness.

Costata Romanesco is too big of a plant to be a really good choice, but it has excellent flavour. We haven't grown Caserta before. My understanding is that it has the good flavour of Costata Romanesco on a smaller but more disease-prone/generally unreliable plant, so it might be a good choice to bring in the size and flavour I'm looking for if the interspecies hybrid brings better disease resistance. As always, lots of ifs.

I'm generally quite excited about the coming season. We haven't started any cucurbits yet (we will direct seed, I think) but almost everything else we've started in pots is looking unusually good and healthy so far.

reed

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Re: Interspecies squash hybrids
« Reply #22 on: 2020-04-28, 08:06:46 AM »
I grew Tetsukabuto in 2018 with a collection of others, the Tetsukabuto did beautifully, the best squash I've had in years. They all had plenty of seeds although maybe 30% were not well formed, still there were lots. In 2019 they all took off good and looked great in late May but 20 solid days of cool rain in June destroyed all my squash that year. I'm pretty sure the farther of the Tetsukabuto seeds was butternut or at least mostly so.  I think butternut is a moschata. I still have plenty of seed, I might try again this year.

Joseph, I think I sent you some of those seeds, did they do any good for you?




Joseph Lofthouse

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Re: Interspecies squash hybrids
« Reply #23 on: 2020-04-28, 08:20:53 AM »
Reed: I planted them next to my Tetsukabuto crosses. It was a generally unproductive year for squashes, so none of them thrived, but they shared pollen around, and produced some fruits. So I'll try again next year.