The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curingEisen, Gustavus A.
History
The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curing
Eisen, Gustavus A.
Raisins; Viticulture -- California
_Care of Cuttings, Planting and Grafting._--Great importance is attached
to procuring cuttings from a distance, or in getting new strains.
Cuttings from the nearest vineyard are never used, as they are
considered to produce inferior vines, and not do as well. To procure
cuttings or vines, the old vines are sometimes cut a few inches below
the surface of the soil, causing the parent plant to throw off numerous
suckers or shoots, which the following winter are separated and used as
we do rooted vines here in California. Three or four years will elapse
before they come into regular bearing. Some vineyards are produced by
grafting the black currant on the wine grape, and many wine vineyards
that do not pay are thus transformed into paying raisin vineyards. The
grafted vines come into bearing much sooner than those grown from
cuttings. The grafting is performed in Zante as follows: The soil is dug
away from the main trunk of the old vine to the depth of from twelve to
eighteen inches, and the trunk cut off square at the bottom of the pit.
Two or three scions are then inserted in the trunk, and made to slightly
project above the ground, in no case with more than two or three eyes.
Clay is then applied to the joint of the graft, and the trunk slightly
covered with leaves, and the hole then filled up with soil. The grafting
is done in the spring, and the cuttings must be kept dormant in dark and
cool cellars.
_Pruning the Vines._--The pruning is done in the fall, just as soon as
the leaves have fallen, and is performed in two parts. In December, the
vines are cleaned of all small, weakly or dead branches, and at that
time only the large and strong branches are left. In February, the
regular cutting back commences, two or three eyes being left on every
spur. There are as many different ideas of pruning the vines in Greece
as there are in California, each one having his favorite methods and
theories as to what is proper and what is not. Some vineyardists prefer
to delay the second pruning until after the vines have started to bud
out, and, when the young shoots are two weeks old, the old wood is so
cut that the bleeding of the vine will not run down on the bud. Bleeding
is at any time considered injurious. The principal pruning is therefore
conducted in February, as being the time most suitable to the currant
grape and conducive to the best crops. Mr. Manoti, a very intelligent
Zanteote currant grower, told Dr. Davy (_Ionian Islands_, page 343) that
he had at one time experimented with pruning the currant vine at
different times of the year. Those pruned in December yielded very few
grapes, which were large; those pruned in April gave plenty, but very
small berries. Again, those pruned in February were in every way the
best. Mr. Manoti added that if he had told one of his neighbors of his
experiments they would have laughed at him, and said, “Whoever thinks of
pruning the uva passa (or currant) in December or April.” This shows how
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