"GreenCeed" wrote in message
ups.com...
Yea nearly every fruit and nut tree is grafted on sturdy root stock.

The top part generally makes bigger and/or greater fruit, but has a
weaker root stock on it, so they graft the top good fruit side to the
bottom smaller fruit etc. but with a better root stock

If im right.

That's one reason, cost is another, a single tree can produce a few hundred
graft stems or buds a year, where it might only produce a few dozen seeds.
Again where the fruit/nut from the a plant produced by seed might not have
all the desired characteristics.

Also in orchards grafted plants are often shorter, which means the harvest
is closer to the ground. There are all kinds of cost and safety benefits
associated not having to have people stand on tall ladders.