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Old November 12, 2017   #121
Nan_PA_6b
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Any updates on this project?

Also, one anecdote: when I knew nothing about tomatoes, I grew a six pack of Romas from K-Mart. At the end of the season, a frost killed the plants, but the fruits remained on the vine & ripened for another two weeks. Anyone else have this happen with Romas?

Nan
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Old November 12, 2017   #122
goodwin
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Yes, I'm using the LA1777 cross as a rootstock. And I now have a strain with edible fruit - actually pretty good-tasting fruit. I'm not sure it is entirely stable, though.
Use of the litchi tomato as a rootstock was also successful. Those grafted plants made it through a light frost. I read later that it was being used as a rootstock in East Asia for other reasons.
Hopefully, I'l get around to posting some photographs one of these days.
You are right. A freeze that kills the leaves appears to shock the plant into ripening the fruit. Peppers are the same way. You can do the same thing by pulling the plant upward until the root mass breaks a little. The remaining tomatoes will ripen quickly.

Lee
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Old November 13, 2017   #123
bower
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I would love to hear if FusionPower did proceed with his original idea for the multi parent cross combining record cold tolerance, earliness, and cold setting?

I ended up crossing my F1 of Eva Purple Ball X PI 120256 to a pink mini-beef F2 of Stupice X Black Cherry in 2015, shooting to combine Stupice's earliness and cool weather set, with the cold tolerance of PI 120256 and taste genetics of the others. I grew out my six seeds of this F1 this season, and it was one of the highlights for sure... Really vigorous plants that set well in all our conditions hot or cold and had a fine yield of sweet and tasty fruit. I saved seed from the pink and red F1s that had the best set as well as best tasting of all. The one plant I put outdoors also ripened nearly all fruit by September, and quite a bit more than any other outdoor contenders.

Nothing close to the capabilities/traits described in the OP, however!. I have another line which is outstanding for foliage health and cold tolerance, keeping on through some light frost nights, but they too were sincerely toast the night we dropped to 27F.
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Old 3 Weeks Ago   #124
Keen101
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I was able to get a few fruits late in the season from Joseph's Fern x S. habrochaites (LA1777). It seemed very self-incompatible. Surprised i got seed at all. Got many fruits on the S. peruvianum. Many fruits on the F1 [S. pennellii x domestic]. I am growing an F2 of it this winter. It has huge Potato Leaves!! Got a few fruits of S. habrochaites, also seemed highly self-incompatible. Fern x LA1777 showed lots of purple foliage when it got cold. Think it was one of the last to survive but alas when it got really cold all the tomatoes died.
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Old 3 Weeks Ago   #125
goodwin
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I also was able to get one cross to LA1777 which I'll plant out again this season. It has segregated 'wildly' the past two years, but some strains still have that odd scent to the foliage and the cold-hardiness.
Your PL plant is a interesting development. What is the fruit like?
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Old 2 Weeks Ago   #126
Keen101
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Quote:
Originally Posted by goodwin View Post
Your PL plant is a interesting development. What is the fruit like?
Yeah, i don't know yet. Trying to grow it indoors is probably not ideal. It has started to develop a few fruits they fell off later. I'm trying to keep it watered with some extra flower and fruit hydroponic nutrient fertilizer. It has formed some new flowers and one has formed a small developing fruit from hand pollination. The appearance now resembles the slow formation of the last F1 generation and slow growing fruit, but who knows what it will be like fully developed.

Here is a photo of the F1 parent fruit without the potato leaf trait. [S pennellii hybrid]


here is an old photo of this new potato leaf plant without fruit. [S pennellii hybrid]


p.s. I will add that the pennellii strains do not have the characteristic "tomato smell", but nor do they really have a bad "wild tomato" smell either. Hardly any smell at all, if any smell it is a very light almost lemony smell kinda like lemon basil. Not terrible at all. So i'm really liking that. Some of the other wild tomatoes smell funky. But i kinda think normal tomatoes don't always smell the best either in large numbers. I don't know. Will be interesting to see how smells develop in future generations and how those smells affect flavor.

Last edited by Keen101; 2 Weeks Ago at 04:19 PM.
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