Research Information System
International Journal of Agriculture, Environment and Food Sciences, vol.8, no.1, pp.94-110, 2024 (Peer-Reviewed Journal)
Green pruning practices are frequently used in viticulture. These practices
provide better light penetration, successful air circulation, prevents air
humidity and aids disease control in the grapevine canopy. However,
excessive leaf removal inhibits vine growth and good fruit ripening. In
this study, the effects of some foliar and canopy management practices
on cluster, vegetative growth traits and bud fruitfulness of the following
year were investigated. Some green pruning (unproductive shoot removal,
leaf removal, shoot tip removal, shoot topping), foliar microelements and
green pruning + microlements treatments were applied in ‘Trakya İlkeren’
grape cultivar. Microelement application increased cluster (382.1 g) and
berry weight (4.4 g), berry length (19.7 mm) and width (18.2 mm), cluster
length (19.5 cm) and width (13.9 cm), berry volume (3.30 cm3) and berry
firmness (7.46 N). The highest maturity index was detected in the control
group (23.4). While the most intense L* color value was determined in
the green pruning + micro element application, the b* color value was
determined in the green pruning application. It was determined that leaf
area (211.2 cm2), leaf chlorophyll index (32.75 SPAD), shoot diameter (11.13
mm), shoot length (194.71 cm) and internode length (76.81 mm) increased
with microelement application. Among the treatments, the most effective
application on bud fruitfulness in the following year was at microelement
application (1.34 clusters). The effects of the treatments on the amount of
Total soluble solids pH, titratable acid and a* color value were not significant.
In this study; green pruning + microelement application was recommended
for yield and quality sustainability. According to bud fruitfulness results, the
highest cluster numbers per node were obtained from pruning with 4 to 10
buds. It is recommended to prune medium or long to obtain higher yields
from this cultivar.