Forum area for discussing hybridizing tomatoes in technical terms and information pertinent to trait/variety specific long-term (1+ years) growout projects.
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#1 |
Tomatovillian™
Join Date: Jan 2012
Location: Rhode Island
Posts: 444
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I recently crossed Cherokee Purple with Pineapple. In one case, I used Pineapple as the pollen donor and in the other, I used CH Purple as the pollen donor. In the F1 result, the time to ripening of the Pineapple pollen donor matched a typical Pineapple plant and the Cherokee Purple pollen donor matched that of a typical CH Purple plant. Was this to be expected? is time to ripening dictated by the pollen donor or is it hit or miss?
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#2 |
Tomatovillian™
Join Date: Feb 2013
Location: South Bend, IN
Posts: 104
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wow, interesting. following
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#3 |
Tomatovillian™
Join Date: Nov 2009
Location: Warsaw, Poland 52° N
Posts: 363
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Yes, sure it's interesting. Don't know if there's any "conventional wisdom".
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#4 |
Tomatovillian™
Join Date: Feb 2012
Location: Newfoundland, Canada
Posts: 6,794
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marc,
Just wondering what is the time to ripening for CP vs for Pineapple? I have a couple of crosses started here, where the pollen donor had a very short ripening time (31 days from pea sized set to ripe) compared to the female parents (47 and 49 days). If the fruit ripen and I get seed, I'll be sure to let you know the results next year. But maybe someone will answer the question before then? ![]() |
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#5 |
Tomatovillian™
Join Date: Jun 2011
Location: Idaho
Posts: 241
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Now that is interesting. Did you do more than one plant from each cross? Did the fruit seem relatively the same other than DTM? Pics?
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#6 | |
Tomatovillian™
Join Date: Jan 2012
Location: Rhode Island
Posts: 444
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![]() Quote:
http://www.tomatoville.com/showthread.php?t=29755 |
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#7 |
Tomatovillian™
Join Date: Feb 2012
Location: Newfoundland, Canada
Posts: 6,794
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Marc, you might find the attached paper interesting, especially the introduction which summarizes past findings at the time (1992).
"Powers and Lyon (1941) divided earliness into three stages: 1) days from sowing to anthesis, 2) days from anthesis to first fruit set, and 3) days from first fruit set to first ripe fruit. They concluded that there was sufficient variation within these stages to consider each a unique and heritable trait." This has been borne out by present day molecular studies, notably Lindhout et al (1994), identified 3 distinct loci corresponding to the three defined stages. http://link.springer.com/article/10.1007%2FBF00022528 The intro attached below also talks about the dominance of earliness, and says " The F1 hybrid mean for earliness closely resembles that of the early parent and is often significantly earlier than the late parent (Corbeil, 1964; Daubeny, 1961; Honma et al., 1963; Lyon, 1941; Powers and Lyon, 1941; Tayel et al.,1959). " That would be most noticeable where there's a big difference in earliness of the parents. There's been lots of research on the "sowing to anthesis" stage, but most everything I've found has rolled the second two stages into one instead of looking at them separately. Maybe there are reciprocal dominance effects in one of those stages that hasn't been noticed because of the overall dominance of earliness traits. ![]() |
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#8 |
Tomatovillian™
Join Date: Jan 2012
Location: Rhode Island
Posts: 444
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Wow great info. Thank you very much.
Did you see the photos. Vey similar fruit in every way but ripening time. Can't wait for F2 rusults. Going to try to get a lot more planted |
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#9 |
Tomatovillian™
Join Date: Feb 2012
Location: Newfoundland, Canada
Posts: 6,794
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Yeah they look delicious, Marc !!!!
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#10 |
Tomatovillian™
Join Date: Dec 2017
Location: Metro Denver
Posts: 766
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Bumping this-
Marc did you ever stabilize this cross? Sounded like it could be super tasty! |
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