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Post by trixtrax on Jul 20, 2014 22:15:44 GMT -8
My notes from previous years show Santa Ana to be somewhat frost resistant and a generally awesome variety.
Red Eye 86F-302-8
Skagit series
"Maori Purple" a name I gave to a clone from Wendy's seedlings was superiorly frost hardy to anything else I have ever grown, but not very productive.
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atash
Junior Member
Learning from my mistakes since 1964
Posts: 96
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Post by atash on Jul 22, 2014 11:58:40 GMT -8
Thanks, Trixtrax. I think Santa Ana might have been on Tom's list for developing into a "perennializable potato". I think the goal or concept is something you dig as needed.
That's not a bad idea. My own goal is something that you are unlikely to lose to a surprise freeze.
According to Curzio, you have another variety via him, called "Papa Chonca" (not to be confused with Papa Cacho) that he overwinters in Wisconsin...and someone successfully overwintered in New England!
There was a discussion about it on FB. Several people stated "almost weedy". Several folks also stated that the foliage survives a few frosts before succumbing to long, hard freezes.
Their enthusiasm was tempered by the fact that it's a late bearer. It's possibly day-length sensitive but I didn't get the specifics as they aren't sure.
Still have it?
I was curious if it is capable of blooming in this climate. Some folks never got blossoms, and some did only late in the year. I'm wondering if it has any fertility that could be exploited. If it's too late-bearing for a temperate latitude--which ironically is not unusual for tropical Andean potatoes--it might be possible to fix it crossing it to other stuff and selecting earlier seedlings.
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atash
Junior Member
Learning from my mistakes since 1964
Posts: 96
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Post by atash on Jul 22, 2014 12:25:18 GMT -8
If all my seedlings are tetraploid, I would bet there is something about that cross that only tetras are going to be fertile, or at least more likely to be fertile. It's probably trying to work around an inter-species breeding barrier. I assume that if I use their pollen to back-cross to the x ajanhuiri, I will get at least the same rate of success, or maybe better, than I did the first time. I will give it a shot. I have a precious few buds on some of my plants that are still actively-growing, and I'm getting better rates of success on pollinations the more of them I do.
I also went anotTher direction trying to add the genes of another frost-tolerant variety to the mix...one Tom has been calling "Bolivar". The idea is to hope for luck-o-the-draw synergy.
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Post by nathanp on Jul 22, 2014 19:41:29 GMT -8
I have Papa chonca where I live in Rhode Island, and was a part of the FB discussion you mention. Here is a picture of what sprung back from overwintered tubers. These are approximately 3-5 tubers that I must have missed when I harvested in late October or early November after several frosts. One observation, it does not show much resistance to foliar late blight, which is a problem in my area. Tubers did not appear affected, but it showed up very late in the year last year. I am growing approximately 12 plants in three locations, including several from pull sprouts, and three in a potato bin. Not counting this overwintered patch. No flowers yet this year so far. And it did not flower last year. I am assuming I will have tubers to share in the fall.
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Post by marches on Jul 23, 2014 9:19:00 GMT -8
Thanks, Trixtrax. I think Santa Ana might have been on Tom's list for developing into a "perennializable potato". I think the goal or concept is something you dig as needed. That's not a bad idea. My own goal is something that you are unlikely to lose to a surprise freeze. According to Curzio, you have another variety via him, called "Papa Chonca" (not to be confused with Papa Cacho) that he overwinters in Wisconsin...and someone successfully overwintered in New England! There was a discussion about it on FB. Several people stated "almost weedy". Several folks also stated that the foliage survives a few frosts before succumbing to long, hard freezes. Their enthusiasm was tempered by the fact that it's a late bearer. It's possibly day-length sensitive but I didn't get the specifics as they aren't sure. Still have it? I was curious if it is capable of blooming in this climate. Some folks never got blossoms, and some did only late in the year. I'm wondering if it has any fertility that could be exploited. If it's too late-bearing for a temperate latitude--which ironically is not unusual for tropical Andean potatoes--it might be possible to fix it crossing it to other stuff and selecting earlier seedlings. Taters are perennial here when left in the ground anyway. I wouldn't like to treat them as a perennial crop due to disease buildup. My interest in frost resistance is more to extend the season and produce more crops. Plant frost hardy varieties to get multiple crops in, starting early in spring or late winter and finishing in early winter.
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Post by nathanp on Aug 12, 2016 17:07:36 GMT -8
Recently, someone was generous enough to donate his time to count guard cells from leaves on some of the crosses from Atash. Here are the results. What is interesting is the high number of triploids.
Variety GCCAv Ploidy Sisu 14 Tetraploid This is the original mother from the cross to Magic Dragons
These are the two sibling offspring that were crossed to each other. Sisu Dragon 13 Tetraploid Magic Sisu 11 Triploid
These were 2015 TPS (F1) of the cross above. 19 plants grown out, 14 saved to grow out as 2nd year tubers. Leaves from 5 survived the cross country trip to be tested. The SD x MS was crossed in both directions, so TPS may have been SD x MS or MS x SD. SD x MS F1 #6 13 Tetraploid SD x MS F1 #8 12 Tetraploid SD x MS F1 #10 12 Tetraploid SD x MS F1 #11 9 Triploid SD x MS F1 #14 11 Triploid
These are 2016 TPS tubers (F2) F1 of the F1, from several berries on a single F1 plant. I lost track of which F1 plant they came from, but my guess is one of the triploid plants. MS x SD F2 #1 11 Triploid MS x SD F2 #2 11 Triploid MS x SD F2 #3 10 Triploid MS x SD F2 #4 11 Triploid MS x SD F2 #5 9 Triploid MS x SD F2 #6 10 Triploid
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