Hybridization/breathing new varieties

I have started this thread because a lot of people seem interested in pollen hybridization and developing new varieties of things, I have seen some discussion about it yet in parts of this forum where it’s hard to relocate each discussion.

I hope that this thread will be used to discus how to do these things, and how not to do these things.

In some ways these topics are easy to understand, in some ways they are very hard to understand. For example when something is hybridized, many times only through cloning does the hybrid changes stick, yet then there is citrus, when pollen hybridization is used on most citrus plants the hybridization is forever permanent, for every germination of plants grown by seeds.

Then there are grapes and tomatoes. People use pollen hybridization on those and the changes stick, people develop new varieties, and like the citrus the changes are permanent from generation after generation by seed. Yet is that the same thing as citrus, or is there some secret to it? I am wondering if each hybridization of those things, just maybe a tiny few things change permanently and most of the changes are not permanent though. Does that sound right?

Here is an interesting video I have found An Introduction To Plant Breeding - YouTube

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This is interesting, it shows what F1 is vs F2 in pollen hybridization, and it shows that an old trait can come back in seedlings and in children, including a bad trait like a disease. Mendelian Genetics - YouTube

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Interesting, if you have ever paid attention to hazelnut pollen compatibility/incompatibility you would have seen the word Alleles mentioned, a word used to help identify the pollen DNA of different varieties, to know if each plant’s pollen is compatible with another plants pollen or not Alleles and Genes - YouTube

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