jibro
Full Member
Czech Rep. | USDA 6b
Posts: 163
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Post by jibro on Dec 7, 2020 8:08:29 GMT -5
My first attempt to create even more cold hardy hybrid than Citrumelo (-15°C ) possibly with even more nasty fruits  was maybe successful. I pollinated more edible FD VS with Citrumelo 5* pollen and one seedling has more wide and rounded leaves than FD and it had also unusual third and fourth "heartshaped" leaves, so it looks promising.
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till
Full Member
Posts: 160
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Post by till on Dec 7, 2020 11:35:38 GMT -5
Cool!
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Florian
Junior Member
Solothurn, Switzerland
Posts: 83
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Post by Florian on Dec 7, 2020 14:45:13 GMT -5
Who knows. Suddenly, you have a freak that has better fruit than either FD or Citrumelo. Unlikely, but you never know:-).
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jibro
Full Member
Czech Rep. | USDA 6b
Posts: 163
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Post by jibro on Jan 12, 2021 8:52:56 GMT -5
Some update: new leaves of this hybrid now look more like Citrumelo, it looks like I have one hybrid... 
Difference between this hybrid and nucellar FD seedling
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jibro
Full Member
Czech Rep. | USDA 6b
Posts: 163
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Post by jibro on Jun 2, 2021 3:26:05 GMT -5
I grafted this possible hybrid seedling to a 1,5cm thick trifoliate rootstock, I used approach grafting, so the seedling still has its roots. It was made on March 11, the seedling was 12 cm high and had damaged leaves probably from over-fertilization.
 Today I removed grafting tape...   And it works  the seedling is almost 50 cm (19,6 inches) heigh after just 3 months from grafting.  Unfortunately, stem and thorns are curved, and leaves look more like pure trifoliate now, so I am not sure if it is really hybrid...  |
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Post by mikkel on Jun 2, 2021 6:43:06 GMT -5
Michurin claimed that the rootstock form the new graft if it still immature as in this case in the direction of the rootstock. I have no idea whether it is right or wrong. If it would be true it is forced in the direction of Poncirus by the rootstock.
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jibro
Full Member
Czech Rep. | USDA 6b
Posts: 163
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Post by jibro on Jun 2, 2021 13:17:49 GMT -5
Not sure about that Michurin theory too I am hoping that this strong rootstock may help to get first flowering sooner than usual 8-10 years, so I will let the seedling grow up to 2 - 3 m as a single stem and hopefully get the answer maybe in 2024...meantime I will test how hardy is... I am planning to graft it into the crown of mature trifoliate too... |
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Post by mikkel on Jun 2, 2021 15:42:50 GMT -5
I am planning to do a grafting experiment with Limonia acidissima. At the moment I have seedlings emerging, so probably a long term project, but on the UC Riverside website it was mentioned that sometimes Limonia force the budwood to flower immediately. Would be nice if that worked for immature budwood too.... But let's talk about it in 2 years
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Post by ilya11 on Jun 2, 2021 16:12:56 GMT -5
It seems that limonia by itself has a long juvenile period.
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Post by mikkel on Jun 3, 2021 16:31:54 GMT -5
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jibro
Full Member
Czech Rep. | USDA 6b
Posts: 163
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Post by jibro on Jun 4, 2021 0:56:59 GMT -5
According this article it is 15 years: uses.plantnet-project.org/en/Limonia_acidissima_(PROSEA)But there is also confirmation about early flowering...
It is interesting and if it really works it could save a lot of time... I wonder if this effect will also work in case if you will use this limonia as interstock on Flying Dragon rootstock or maybe the best solution would be to graft small limonia seedling onto strong poncirus rootstock as I did with my hybrid and get a bigger plant ready for grafting quickly...
Performance of sweet orange grafted onto woodapple rootstock in low country dry zone of Sri Lanka.
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Post by mikkel on Jun 5, 2021 8:47:10 GMT -5
this is definitely worth a try.
I find it difficult to interpret the statement in the last link you sent.
Grafted plants bore fruits as early as 9 months after grafting, although it took up to 21 months for all plants to flower. Plants grown from seedlings flowered 5 years after transplanting. Fruit set occurred several times per year in grafted plants.
Grafted plants vs. seedling plants
I wonder what "seedling plants" refer to? Citrus seedlings grafted onto Limonia or Citrus seedlings on their own roots compared to Limonia grafted plants?
There isn`t any source of the whole article. Any can help?
So far I haven't found any Limonia plants , only seeds, so it will be a while before I can test it. It could also be difficult to overwinter them in a greenhouse, Limonia is certainly more sensitive to cold.
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Post by mikkel on Jun 5, 2021 8:47:41 GMT -5
the correct link is
another link
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Boris
New Member
Posts: 26 
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Post by Boris on Jul 8, 2021 7:24:00 GMT -5
... so I am not sure if it is really hybrid... Hi! I also got the idea of backcrossing with PT. If it turns out to be a hybrid and its cold resistance is at the PT level, then you will have a more edible "trifoliate" for further crossbreeding. Great! |
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Post by mikkel on Oct 4, 2021 14:26:30 GMT -5
I wonder if this effect will also work in case if you will use this limonia as interstock on Flying Dragon rootstock or maybe the best solution would be to graft small limonia seedling onto strong poncirus rootstock as I did with my hybrid and get a bigger plant ready for grafting quickly...
I have considered grafting Limonia as a 2nd rootstock. My seedlings are still small and it will probably be years before they are suitable as a true rootstock. I wonder whether immature Limonia seedlings will also force Citrus to flower or whether fully mature plants are needed for this.
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was maybe successful. I pollinated more edible FD VS with Citrumelo 5* pollen and one seedling has more wide and rounded leaves than FD and it had also unusual third and fourth "heartshaped" leaves, so it looks promising.
the seedling is almost 50 cm (19,6 inches) heigh after just 3 months from grafting.
