hybrid between quince and apple
This picture was taken from a Czech site, from a breeding research program, with the title "Cydomalus" and caption "Malus domestica x Cydonia oblonga ".
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"Slightly more than 50% of the F2 seedlings were found to be
allotriploids (3x = 2n = 51), the rest were found to be tetraploids (4x = 2n =
68). Most of the allotriploids resembled quince morphologically. All these
plants formed only single-flowered inflorescences and set mostly seedless
quince-type fruits. About 15% of the allotriploids displayed apple-like
characters and had seedless fruit with intermediate taste. Inflorescences of
this group had up to five flowers, but the majority had two to three flowers.
All allotriploids produced slightly viable pollen. Allotetraploid (4x = 2n =
68) hybrids position is intermediate between the diploids and triploids. It
mainly consists of large pollen grains of probably diploid (2x = 34) genotype.
The other part of pollen is smaller in size, maybe haploid (x = 17), but very
small sterile grains also occurred. Germination percentage […] was close to
50%. Fruits were flat-rounded, yellow with dense pulp, containing normally
developed seeds (up to 25), most which germinated well. "
The paper went on to say that for the F3 generation has been
grown on its own roots but after 10 years of age they had not produced fruits.
Not surprising, since genetic incompatibilities can often not show up until the
third generation.
The paper gives a description of an apple-like triploid
hybrid: “Fruits ripen at the end of June to July. The fruit weight varies from
120 to 320 g. Skin colour is yellow, sometimes a little pink on the sunny side.
Flesh is yellowish, juicy, sour-sweet”
"Genotypic variation in apple × quince progenies", I.S. Rudenko and I.I. Rudenko. Progress in Temperate Fruit Breeding, Volume 1 of the series Developments in Plant Breeding, pp 229-233
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For information about hybrids between quince and pear, which seem to have a closer affinity to one another, see the thread: Any Pear or Apple varieties with an aroma like Quince?
I suspect there might be a possibility that the quince variety known as "Karp's sweet" might actually have resulted from a chance pollination of a quince tree by apple pollen, without anyone realizing it. This quince variety is known as "apple quince" in the Majes Valley of southern Peru where it originated.
Comments (6)
parker25mv
8 years agolast modified: 8 years agoOh, and in case you're wondering...
In the 1980’s Max Zwintzscher was the first to report
obtaining a fertile F2 plant from an F1 hybrid between Malus domestica and
Pyrus communis. This was seen as a big breakthrough.
I might be wrong here, but from all the research I have been reading I seem to get the impression it is easier to hybridize pear or apple with quince than pear and apple together directly._
And now I'm going on a wild flight of speculation, but I have a hypothesis this might be how the rare pear variety 'Nurun Burun' was bred; first an Asian pear got pollinated by quince, and then the resulting hybrid was later crossed with regular pear (Pyrus communis). This indirect breeding path may have allowed the aromatic quince genes to be more easily introduced into the European pear stock. 'Nurun Burun' can be found in Azerbaijan so it would have been easy for growers there to get their hands on Asian pears from China hundreds of years ago from traders travelling the Silk Road.
parker25mv
8 years agolast modified: 8 years agoRelated Discussions
Grafting asian pear onto medlar or quince
Comments (4)I know they graft European pears onto quince, because that is what my Bosc is clearly grafted on. Definitely quince foliage from the persistent suckers that emerge at or near ground level. I would think Asian pear would work as well on quince. I was never very successful getting a decent crop of quinces until last year and especially this year when I found out about the Triazicide Once and Done from this forum. I grew nearly perfect, worm free quinces this year. A couple of coddling moths in a handful of the cores, but just a few, but, I slacked off spraying after about late July. Had I done just one early-mid-August spray, they probably would have been pristine. Not complaining, I got way too many as it was....See MoreHow did I miss Quinces and Persimmons?
Comments (6)How about Asian persimmons (Fuyu and such)? They are even better, but a little different, than American persimmons. I would kill to be able to really grow them here. I'm experimenting, but long term they won't make it due to weather. Really, there are all kinds of unusual fruits out there that many people haven't tried. If I lived in Zone 7, I'd be experimenting with things like Butia capitata, the Chilean Jelly Palm, with various hardy types of pomegranates, with the various Citranges, which are hybrids of regular citrus and the hardy Poncirus trifoliata, with figs, with Pineapple Guavas. I do have a question about your quince -- 1" and brown doesn't sound like any quince I know, even the flowering quinces -- those generally have a 2 to 4 inch diameter fruit with is kind of an orange color when ripe. I am wondering if what you sampled isn't a quince, but is perhaps a Medlar, which is related to quince, but has roughly 1 to 2 inch, brown fruits that aren't eaten until fully softened (called "bletted") and are said to taste like applesauce with cinnamon?...See More(OT) Quince
Comments (27)I don't know the name(s) of ours; they were bought at different times but look like they're all the same kind. They could be the variety you describe: the fruit corresponds, but I haven't seen our trees getting big, though one will have to pruned lower this year. I don't know if they've just grown slowly (no water or fertilizer) or if they naturally stay the size of a large shrub. They seem to want to develop a shrubby habit. Ours fruited heavily this year. Up to this year we've left most of the fruit on the tree. On the other hand I've never had our soil tested for its mineral content. The clay, once adequately amended with organic matter, seems to be good for a lot of plants. I take note of your comments about potassium. N.B. we had just the first tree for a while and it did fruit, so I take it it's not a self-sterile kind. By the way, you mentioned in another thread that the during the process of decomposition organic matter in the soil will consume nitrogen, making it desirable to add nitrogen for the plants growing there. Does it make a difference if the organic matter was collected while still alive (hay, pruned live twigs and canes) or had died (dead leaves and organic detritus)? Seems I read something about this once....See MoreThoughts on breeding new varieties of Quince for eating off the tree
Comments (7)As for how my quince trees are doing, see this other related thread: [Crimea quince fruit review[(https://www.houzz.com/discussions/crimea-quince-fruit-review-dsvw-vd~5476273) Kuganskaya is pretty good eating quality, and no doubt if it was crossed with a pear it would lead to something completely edible out of hand. Virtually almost like a Granny Smith Apple but much more acidic. Astringency virtually isn't noticeable in just one or two small slices. Karp's Sweet is still alive and very slowly growing, but it's in a different climate (zone 10 ) so isn't growing as fast as the other quinces. It did set just a few blossoms though last year. It's late December and the tree still has green leaves which have not dropped. I don't really feel that the waxy peel and fuzz are impediments to out of hand eating, so not really concerned about that. (In any case, these "edible" quinces don't really have as much waxy fuzz as the other normal ones)...See Morefrancis_eric
8 years agoparker25mv
7 years agolast modified: 7 years ago
Odin Arsa
11 months ago
Володимир Меженський