
Since Phylloxera ravaged the European vines in the late 19th century,
all vines in Europe are the result of a laborious process of grafting the
European variety onto American rootstock (known as the "peu" or
"foot" of the vine). In the following photographs, Anton is seen
grafting the Ull de Llebre variety onto rootstock planted last year. As
seen in the page on planting, vines start life in one of two ways: either
being planted pre-grafted (usually nursery-prepared) or by planting the
rootstock one year, and grafting on the desired variety the following spring. Although
Anton makes it look extraordinarily simple (and does it very quickly) there
is an art to grafting correctly, and you see less and less farmers doing
it nowadays. (Anton himself used pre-grafted stock this year).
The grafts are prepared using branches of Ull de Llebre pruned (in another
of their vineyards) in the winter. They have been kept in a dark damp place
to avoid them drying out. As can be appreciated on the right they are cut
into a V-shape, down to the core of the branch (a slightly darker section
in the middle of the branch). They are then kept wet until inserted into
the rootstock.

The growth of the peu is cut back, leaving just the roots
and the beginning of the trunk.The new stock will be grafted on just below
the surface of the earth. Note that the peu has just started shooting (these
photos were taken in mid-April).
The trunk is split down the middle (again note the darker heart at the
centre) and the V-shaped graft spliced into it. The end result is shown
at the top of the page. This is a simple graft which is generally effective.
Vines can also be grafted using a sort of slanted W-shape (see right) which
whilst more fail-safe, is considerably more time consuming, and not generally
worth the extra difficulty.
The graft is traditionally tied up with Raffia (a reed like plant) but
nowadays is more likely to be done with bio-degradable plastic strips or
tape. The binding must hold the graft secure until it "takes"
but must then not throttle the vine, hence the importance of it being bio-degradable
(as well as the obvious ecological issue).
Finally the whole plant is covered with earth to ensure that the graft
doesn't dry out. It will remain this way until the new growth breaks the
surface and the graft consolidates. Anton expects a near 100% success ratio
of the grafts, and the few that fail can be re-grafted either next month, or if it fails later in the year, next spring. Although this makes it appear very straightforward, various "uncontrollables" (particularly inclement weather) can affect how well the grafts take.
Once the newly-grafted vines have consolidated themselves, there is still
one further task before Anton and Sergi can relax. The grafts are liable
to grow roots at the point of the join, and these must be removed in early
summer. The object of removing these roots is twofold. Firstly, as they
are relatively near the surface, they would be torn up anyway by ploughing,
and more importantly, if they are the result of the Ull de Llebre rooting,
they would make the vine vulnerable to the phylloxera bug, thus invalidating
the whole process. See Grafting part II to see how it's done.
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