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new Papua New Guinea Microcitrus- Citrus wakonai
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pagnr
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PostPosted: Sun Nov 24, 2013 1:24 am    Post subject: new Papua New Guinea Microcitrus- Citrus wakonai Reply with quote

It seems that the original story that the Mt White Lime C. garrowayi, occurs both in Cape York Australia and Goodenough Island in PNG is not correct.
The PNG species has been described as a new kind, C. wakonai, related to
C. warburgiana from PNG and C. inodora from Nth Qld.
C. wakonai pronounced wokani, is named for the local village in the area.
The plant is called " kamakuku "
The plant has a very short juvenile period, as low as 144 days from germination, compared to C. wintersii 14 months.
C.wakonai x Citrus hybrids can flower in 12 months.

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citrange
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PostPosted: Sun Nov 24, 2013 8:39 am    Post subject: Reply with quote

Yes, that's another very interesting species that I would love to add to my collection. (The complete article can be downloaded free if you register at JSTOR.) But the Bundaberg Research Centre is not releasing material for distribution - they are carrying out cross breeding trials of rootstocks themselves. See also
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I am still trying to get hold of seeds of Citrus gracilis.
I think I'm getting close - in contact with an Australian who has several mature fruiting plants on his land, but hasn't yet found any seeds!

Mike/Citrange
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Sylvain
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PostPosted: Mon Nov 25, 2013 7:19 am    Post subject: Reply with quote

The article
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I am too very, very interested to have few viable seeds.
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bussone
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PostPosted: Mon Nov 25, 2013 6:30 pm    Post subject: Reply with quote

citrange wrote:
Yes, that's another very interesting species that I would love to add to my collection. (The complete article can be downloaded free if you register at JSTOR.) But the Bundaberg Research Centre is not releasing material for distribution - they are carrying out cross breeding trials of rootstocks themselves. See also
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I am still trying to get hold of seeds of Citrus gracilis.
I think I'm getting close - in contact with an Australian who has several mature fruiting plants on his land, but hasn't yet found any seeds!

Mike/Citrange


Want some evergreen poncirus seeds?

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It's a bitter orange without any redeeming qualities! Apparently at one time the population was reduced to 19 trees, of which only one remains at its original location.

Incidentally, that's a fascinating article your gracilis reference links to.

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Apparently there's a fertile wintersii/poncirus hybrid out there. Wintersii may be especially promiscuous for citrus -- apparently it can fertilely hybridize w/ the Gabon Cherry Orange (Citropsis gabunensis).

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citrange
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PostPosted: Sat Dec 14, 2013 8:15 pm    Post subject: Reply with quote

I've been trying to collect some more information about C. wakonai.
Not easy, but what I have so far may interest you - even though much of it is a compilation of bits and pieces found on the internet. See

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I've been corresponding with one of the discoverers of C.wakonai but he can't send seeds. We need someone to go to Goodenough Island to get some! Try reading this account of a student doctor who went there - a truly horrendous journey that was nearly fatal!

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Anyone feel in need of some adventure?
Citrange/Mike
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Millet
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PostPosted: Sun Dec 15, 2013 1:46 am    Post subject: Reply with quote

Thanks Mike. I spent most of the night with your post, and your web site. Read every word. Simply Fantastic. Your investigation into the C. Wakonai, and the subsequent information (especially the story about the student doctor), that you provided us was outstanding. - Millet
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Radoslav
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PostPosted: Sun Dec 15, 2013 7:46 am    Post subject: Reply with quote

good job Idea Citrange Trilly-19-41
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Sylvain
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PostPosted: Sun Dec 15, 2013 7:32 pm    Post subject: Reply with quote

You did a nice job mike.
I have too species of Citropsis and really need few seeds of C. wakonai to cross with and use as bridge toward citrus.

Quote:
Anyone feel in need of some adventure?
If someone pays the plane ticket, this summer I go there and send you seeds. This is exactly the situations I love.
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yuzuquat
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PostPosted: Sun Dec 15, 2013 11:30 pm    Post subject: Reply with quote

Hi Sylvian

Have you considered using a different microcitrus to try and hybridise with citropsis.

C. wakonai was probably chosen because it is reputed to flower at a year old. Unless you are also looking to carry this trait into the hybrid the microcitrus parent is not relevant.

In fact in the absence of C. wakonai hybridisation using another of the microcitrus would be good practice to prove the crossing of the 2genera was really the rule rather than the exception.
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Millet
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PostPosted: Mon Dec 16, 2013 2:13 am    Post subject: Reply with quote

Procimquat, a citrus variety that is easy to locate, flowers and fruits from seed in one year or less. - Millet
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yuzuquat
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PostPosted: Mon Dec 16, 2013 8:46 am    Post subject: Reply with quote

If just trying to prove hybridisation between microcitrus and citropsis is possible then M. australis and M. wintersi are most readily available here in Europe and seem easier to grow than M. australasica. M. x virgata maybe interesting for its vigour but resulting hybrids may be seedless - not necessarily a bad thing unless you want to use as bridge to commercial citrus varieties.

If that is the objective why not try faustrime to get citropsis genes into a lime bloodline or faustrimedin to get into calamondin bloodline.

At a pinch as microcitrus also crosses with fortunella why not try one of the kumquats.
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citrange
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PostPosted: Mon Dec 16, 2013 5:42 pm    Post subject: Reply with quote

Quote:
If someone pays the plane ticket, this summer I go there and send you seeds. This is exactly the situations I love.

Really? More malaria?
I'd go myself, but I'm not sure they've got enough supplies of soft toilet-paper!
So instead, I'll sponsor your trip for 200.
Another 9 sponsors should cover your fares.
Mike/Citrange
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Sylvain
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PostPosted: Tue Dec 17, 2013 6:16 am    Post subject: Reply with quote

Yuzuquat, everything you said is what I think.
Indeed the fact that C.Wakonai flowers in less than one year is very interesting particularly because this trait is (partially) hereditary.
Bridging needs many back cross, time is the enemy.
I think this crossing (Microcitrus x Citropsis) has been possible because they are "near" ancestors, aging from the time when east Africa, India, south China and north Australia were joined.
So we must try the cross of all the Citropsis and all the Microcitrus.

Citrange: "Really? More malaria?"
I swear, this time I'll take my pills. Smile
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Sylvain
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PostPosted: Tue Dec 24, 2013 10:01 am    Post subject: Reply with quote

Foufouche on the French forum put 100 in the pot.
Very Happy

You all noticed that in the same place there are C. wintersii and C. warburgiana too... Smile
And maybe others still unknown.
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citrange
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PostPosted: Tue Dec 24, 2013 3:12 pm    Post subject: Reply with quote

Quote:
in the same place there are C. wintersii and C. warburgiana

Same country, but not quite in the same place.
C. wintersii is around Port Moresby.
From there is about an hours flight to Alotau, with C. warburgiana somewhere underneath the flight path.
Then, roughly 15 hours boat to Goodenough for C. wakonai.
To find C. wakonai will be a real challenge. To find all three in one trip would be almost impossible.
But prove me wrong!!!
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