American grape training : $b An account of the leading forms now in use of training the American grapesBailey, L. H. (Liberty Hyde)
Science
American grape training : $b An account of the leading forms now in use of training the American grapes
Bailey, L. H. (Liberty Hyde)
Viticulture -- United States
A modification of this horizontal arm system is shown in fig. 9. It is
used about Forestville, in Chautauqua county, New York. The arms in this
case are very short, and canes are taken out only at two or three
places. The picture shows a vine in which two canes are taken from the
end of each arm, making four canes for the bearing top of the vine.
These canes are cut back to spurs in the fall, as explained in the above
paragraph. Sometimes one or two other canes are taken out of these arms
nearer the main trunk. The advantages urged for this style of training
are the stronger growth which is insured by so few canes, and the small
amount of old or permanent wood which is left to each vine.
[Illustration: 9. SHORT ARM SPUR TRAINING.]
The horizontal arm training is less popular than it was twenty years
ago. It has serious faults, especially in the persistence of the old
spurs, and probably will eventually give place to other systems. Aside
from the spur pruning, the system is much like the following, which is a
modification to allow of a renewal pruning and to which the reader is
referred for further details. This modification, which may be called the
High Renewal, and which is one of the most serviceable of any of the
styles of training, although it has never been fully described, we shall
now consider.
_The High Renewal_, or upright training which is now very extensively
employed in the lake regions of New York and elsewhere, starts the head
or branches of the vine from eighteen to thirty inches from the ground.
The ideal height for most varieties is probably about two feet to the
first wire, although thirty inches is better than eighteen. If the vines
are lower than two feet, they are liable to be injured by the plow or
cultivator, the earth is dashed against the clusters by heavy rains, and
if the shoots become loose they strike the ground and the grapes are
soon soiled. A single trunk or arm is carried up to the required height,
or if good branches happen to form lower down, two main canes are
carried from this point up to the required distance to meet the lower
wire, so that the trunk becomes Y-shaped, as seen in figs. 10, 16 and
17. In fact, vineyardists usually prefer to have this head or crotch a
few inches below the lowest wire, to facilitate the spreading and
placing of the canes. The trellis for the upright systems nearly always
comprises three wires, although only two are sometimes used for the
smaller growing varieties, and very rarely four are used for the
strongest kinds, although this number is unnecessary. The lowest wire is
stretched at eighteen, twenty-four or thirty inches from the ground, and
the two upper ones are placed at distances of eighteen or twenty inches
apart.
[Illustration: 10. THE SECOND SEASON OF UPRIGHT TRAINING.]
[Illustration: 11. MAKING THE T-HEAD.]
Public-domain text, read in full here on John Shaqi.
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