Temperate Fruit & Orchards > Temperate Fruit Discussion

Cherimoya/Pawpaw hybrid

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usirius:
@All:
Thanks for sharing your opinions and thank you for your realistic assessments, advice and encouraging words. So I will observe the plants for a while and maybe this year I will also create a pure Cherimoya pollinated Cherimoyaflower to get real Cherimoya seeldings from my mother plant as base for comparison - this will happen earliest next year of course, so long I will keep on watching the current seedlings and creating new pollinations on the few remaining Cherimoya flowers of my Cherimoya plant. Sorryly most of the Asimina-pollinated Cherimoya flowers dried within two or three weeks. With Asimina pollinated Cherimoya flowers stay more longer alive than time unpollinated Cherimoya flowers is until they dry out - but most of Asimina-pollinated Cherimoya flowers die within two to three weeks. But a few are stiill alive and I hope that they will remain alive and no insect has helped me by doing pollination...
I will keep you informed.

Radoslav:
I am not a specialist, but if the situation is similar to crossing diploids with tetraploids in citrus breeding, then it will be impossible to save embryo without separation and rising in vitro.

usirius:
@Radislav: Thanks for your post. I think, and certainly most of the members of the forum who deal with hybridization, that it's as you write. By the way, we discussed this topic here in this section some time ago. Nevertheless, it cannot be excluded that pollination is successful even with different chromosome numbers of cross partners, because it can also be assumed that degenerated or modified cells or Cell information can be contained, further can by tricks such as the use of gibberlic acid (which I have not yet tried, I will still try next year), further also post-pollination with own pollen, inverse hybridization, hybridization of one among themselves incompatible individuals (I have such an Asimina) with Annona, and certainly still further possibilities then nevertheless a hybrid can develop, to what extent this forms a complete germinable seed, and to what extent this forms again a viable plant, is the question. Perhaps one would have to try to hybridize plants of the Annona family with more closely related Annonas (Atemoya) via a detour of hybrids. I think that, despite scientific evidence and experience, surprises might be possible.We will see.

Guanabanus:
Another technique, not mentioned above, is pre-germinating pollen before applying it to the pistil.  But I have no knowledge of how to do that.

usirius:
 Thank you for sharing the hint to another interesting sounding  method - I will do a research concerning  this. In case if success I let you know if course.

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