Agriculture Reference
In-Depth Information
SCION
The upper part of the grapevine that is grafted onto a rootstock.
SHOOTS
The green growth of the trunk, cordon or spur. Shoots will grow long if not
trimmed back or pulled.
SHOOT DEVELOPMENT
A shoot begins to develop at bud burst and begins to elongate as
leaves unfurl at the apex. As the fruit ripens the shoot tip will slow down or stop growing.
SHOOT POSITIONING
The process of training the direction of shoots up between the
double wires of the trellis system.
SHOOT POSITIONING WIRE
The double strand of wires above the fruiting wire into which
shoots are trained.
SHOOT PULLING
The process of taking off laterals and suckers from the grapevine.
SHOOT SPACING
The distance between shoots on the cordons or arms of a more mature
vine.
SHOOT THINNING
See Shoot pulling.
SHOOT TRAINING
Process of tying shoots to stakes and wires, and pushing them to grow
between the shoot positioning wires.
SHOOT VIGOR
The speed and strength of a grapevine's growth.
SPUR
A short, fruiting portion of first-year growth (cane), which is pruned down to one
to three nodes.
STOMATA
Tiny pores under the leaf of the plant which allow plant respiration. Stomata
are light-sensitive, so they close at night and open during the daylight hours.
SUCKER
A shoot arising at or above ground level. A water sucker, or water shoot, is a
shoot that will not bear fruit.
SUCKERING (ALSO KNOWN AS DESUCKERING)
The process of removing shoots at or just
above ground level and those arising from the trunk or spurs, usually water shoots.
