[NAFEX] rooting hardwood grape cuttings upside down
Lon J. Rombough
lonrom at hevanet.com
Wed Apr 6 23:40:25 EDT 2005
That's a variation on one of the oldest methods, burying cuttings
upside down in sand pits outdoors. The idea is that the top layers of
sand get warm first, so the bottoms of the cuttings callus before the
deeper levels get warm enough for the buds to push. The basic
principle is mainly to keep the bottom of the cutting warm and the top
as cool as possible. I've seen rooting benches in a cooler, with a
heat cable under the cuttings. The top stays in the very cool air and
the buds stay tight, while the bottom gets warm and roots.
Grapes, writing, consulting, my book, The Grape Grower, at
http://www.bunchgrapes.com Winner of the Garden Writers Association
"Best Talent in Writing" award for 2003.
On Apr 6, 2005, at 6:45 PM, rooting wrote:
We had a request for information which was a bit different from our
A commercial grower in CA wants to
>take this years hardwood grape cuttings
>basal dip them in solution containing Hortus IBA Water Soluble Salts
@50ppm IBA for 4-6 hours. (http://www.hummert.com)
He says his normal procedure is to totally cover the treated cuttings
in vermiculite UPSIDE DOWN.
He asks if he should also dampen the vermiculite with the IBAWSS
His procedure is to remove the cuttings from the vermiculite when the
roots start to form>then plant.
I believe that his intention is to have the latent buds remain dormant
until after the roots form since he does not want the bud imitation to
be a sink.
My normal procedure would be to have him
>long basal soak in the IBAWSS solution for the same concentration and
>then plant in a protected location.
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