[chrisgarand]

I haven't watched the video (it may be fascinating), I armchair researched this, and the reason why you don't get a Hass avocado tree is the same reason why you are not clones of your parents. Avocado seeds are largely mono-embryonic, they are a blend of the pollen from the flower, and the genetics from the parent tree. While the fruit develops from the tree's genetics, the seed is a blend.

Mono-embryonic seeds are not true to type, which means their seeds will not grow fruit like their parent tree. Techniques like grafting, air layering, and cloning were developed to quickly scale editable fruiting types. They reduce the risk of having a plant that is non-productive, and accelerates the anticipated fruiting period vs from seed (most tree types will be 8-15 years before fruiting, while a clone can produce in as little as 3 years, but generally no longer than 5).

I've been going over avocado seeds to find proof of poly embryonic types as these: https://academic.oup.com/jhered/article-abstract/35/7/209/81...

Information for avocado's seems to be lacking, I have a quick reference for which citrus can/will grow true to type, however with avocado's, there is some research, but few points of use for home growers. If there's anyone that can point me to a good resource, I would appreciate it!

[alisonkisk]

Parent comment is a summary of the video.

> Avocado seeds are largely mono-embryonc,

> they are a blend of the pollen from the flower, and the genetics from the parent tree.

Pollen carries genetics. Avocado seeds are a blend of genetics from both parent trees, instead of being clones of the mother tree.

In (many) polyembryotic plants, the mother inserts multiple clone alongside the (usually single) sexual embryo. (Interestingly, the mother can't produce seeds asexually, but can insert asexual embryos into the sexual seed.)