Sorbus domestica

[khoomeizhi]

Jul 27, 2014 12:21:06 GMT -5 philip said:

Unfortunately breeding for bigger fruit truly is a long_term project since a tree grown from seed can take 20 years before it makes any fruit.

you can speed up trialing quite a bit if you've got a full-sized tree to graft bits from your crosses onto. fruit in just a couple years instead of waiting for a seedling to become an adult. definitely interested in this tree.

and i've noticed there's a lot of S. aucuparia crosses too, bill...makes me wonder what species' fruit is like before crossing...

[darrenabbey]

Dec 1, 2014 18:55:05 GMT -5 khoomeizhi said:

you can speed up trialing quite a bit if you've got a full-sized tree to graft bits from your crosses onto. fruit in just a couple years instead of waiting for a seedling to become an adult. definitely interested in this tree.

This would make a lot of potential projects go much faster. Thank you for mentioning the idea.

[philip]

Yes, that is a great idea! I knew it was possible to graft a cutting from an old tree to a young sorbus domestica plant as rootstock and thus quickly get a young tree that will fruit but i never thought of doing it the other way round. That would definitely speed up the process of selecting for good fruiting qualities, but will the old tree and its sap influence the development of the fruit on the new branch? And will it then make different fruit than the seedling grown on its own? I don't know!

[philip]

    
2 true service trees grown from seed. These were sown at the same time. One was looked after well (planted into a bigger pot at the right time and grown in a polytunnel) the other not. The big one is just over 1 foot tall. I was told by a professional horticulturist who grows true service trees for tree nurseries that they can get up to 3 feet tall in one growing season (with the best earth, a good greenhouse etc...)
The plant at the right is now at the ideal stage to be planted out in its final location. That way the root system can develop well. These trees should not be kept in pots for too long.
Since many animals like to eat these trees they have to be well protected by means of fencing. To protect the roots from rodents it is effective to break glass bottles and throw the broken glass into the hole around the roots. This ensures the safety of the roots. Young plants benefit from being protected against frosts for the first couple of years. Mature trees can take at least up to -20 Celsius, maybe more.
In nature self-seeded plants, already very rare, almost never make it due to other tree species growing much faster and out-shading them.

[khoomeizhi]

Dec 3, 2014 15:00:14 GMT -5 philip said:

Yes, that is a great idea! I knew it was possible to graft a cutting from an old tree to a young sorbus domestica plant as rootstock and thus quickly get a young tree that will fruit but i never thought of doing it the other way round. That would definitely speed up the process of selecting for good fruiting qualities, but will the old tree and its sap influence the development of the fruit on the new branch? And will it then make different fruit than the seedling grown on its own? I don't know!

i can't take credit for the idea, it's one a group i'm in that's starting nut orchards is planning on using for speeding up trailing in seed-grown walnuts and hickories.

will it be different than it would be on its own roots? i know folks who would insist yes, some who would insist no. at the very least, if you've got scion from multiple seedlings on one big tree, you can compare taste/texture/size/productivity/whatever your standards are, relative to the others in the same situation. 

[philip]

I planted a true service tree "Sossenheimer Riese" that i had bought 2 years ago. This is the one with the largest fruit of all german varieties.

I decided to try an attempt taking a cutting of it. I used the "bouturage semi-aoûté" method especially suited for taking cuttings of prunus trees.

www.greffer.net/?p=586

Here is the link to a detailed description in french. It's a fascinating method for taking cuttings of peach and cherry trees.

I am giving it a go with my sorbus domestica but i have my doubts because the twig was already too woody,  i think.

Anyway, nothing ventured, nothing gained.

[philip]

This is the "sossenheimer riese" growing in a field. It is very exposed so i tied it. It also has some serious fencing cause there is always cows that get into that field.

A true service tree grown from seed. It is the bigger of the two seedlings in the picture in an earlier post

The cutting i am trying to root

[Troy]

Does anyone know where I can find a sorbs domestic seedling in the USA? No one seems to carry them.

[Troy]

Make that a Sorbs Domestica Seedling.

[Arnould]

Hello Troy,
Why not go and get some fruits by yourself? So you would be sure to get the very seeds of sorbus domestica. And you could measure the trees and sizes of fruits and give us those very interesting informations here... To do this you should only be able to travel to California, Sebastopol by end of September. Google "sorbus domestica Luther Burbank" for more and keep us informed please!

[Gay]

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