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Post by cesarz on Feb 11, 2014 4:23:17 GMT -5
Yes I will transplant the "weeds" let them set seeds on their own just for you I will also post some pictures, some have red petioles and red spotted leaf. Do you only want the ones with the red genes in them?
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Post by cesarz on Aug 7, 2014 2:59:48 GMT -5
Cesarz, can you save some of those hybrids for me? Hi oxbowfarm, Sorry not one of the my natural hybrid Senposai "weeds" flowered, maybe they became sterile? |
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Post by rangardener on Dec 7, 2015 20:26:24 GMT -5
I came to this thread while looking for info on senposai.
From a 2007 research report by two Taiwanese breeders who dehybridized the Japanese senposai, the original senposai was created (by Kirin) as follows.
(female B. oleracea 2n = 18, cc) x (male B. rapa Komatsuna 2n = 20, aa)
(embryo rescue, tissue culture) >>
ac F1
(chromosome amplification)>>
aacc (female donor)
(female B. oleracea 2n = 18, cc) x (male B. rapa Bok-Choy 2n = 20, aa)
(embryo rescue, tissue culture) >>
ac F1
(chromosome amplification)>>
aacc (male donor)
aacc (female) x aacc (male)
>> aacc Senposai
In the Taiwanese report (only the abstract is in English) they also showed the hybrid version of (original) senposai did not set seeds well, while the dehybridized version set seeds profusely.
I have some supposed dehybridized senposai seeds from Taiwan, BUT I am not totally sure about the claimed identity. I did grow up a batch of seeds last year. I also grew out some hybrid senposai (from Evergreen) for comparison, they sure showed quite some difference. Similar to the report, my supposed OP version was more yellowish in color. Very tender and tasty, fast growing, but also bolt rather fast, and set a lot seeds. Whatever it is, it is not like any Asian vegetables I have ever seen before.
I was also thinking about crossing this with other B. napus, but I am not sure it is worth doing given that I am not even sure about the identity of my OP senposai.
I saw Southern Exposure has another OP senposai. I plan to try that one next year just for fun, should be good eat, too.
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Post by oxbowfarm on Dec 9, 2015 21:08:06 GMT -5
This is interesting and good info. I've been growing my own Senposai seed for some time now, originally Fedco sourced. It definitely has a very high tendency to early bolting and a very low vernalization requirement, from the komatsuna/bok choi B. rapa side I am sure. Lots of variation in phenotype.
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Post by triffid on Apr 15, 2020 16:16:32 GMT -5
Sorry to resurrect an old topic but I've been thoroughly sold on Senposai from reading through this thread, and watching your videos Oxbow. But I now have a problem because Senposai has ceased to exist over here. Would someone be willing to trade a pinch of seeds?
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