KARAERIK UZUM

138 Agricultural and Natural Research & Reviews
2. Research about ‘Karaerik’ grape cultivar
2.1. Clone selection
The first clone selection study for the ‘Karaerik’ grape cultivar was initiated
by the Erzincan Horticultural Research Institute and the project was completed
in three stages. The selection of the first clone candidates was started in the
growers’ vineyards in the Üzümlü region, where the ‘Karaerik’ grape cultivar
was widely grown between 1982-1988. The second phase of the study, the
‘Clone Collection Vineyard’, was established with the cuttings taken from the
40 selected clone vine candidates. At the end of the study, the clone candidates
were evaluated according to their weighting ranking score, and finally, the six
clones with the highest score (clone 23, 18, 19, 3, 13, 15, and 30) were selected
for the ‘Karaerik’ grape cultivar. Then, ‘Clone Comparison Vineyard’ was
established with these clone candidates. As a result of selection, clones 23 and
18 were selected because they showed the highest performance as table grapes
(Karadoğan et al., 2014). The second clone study for this grape cultivar was
carried out within the scope of a doctoral thesis and was completed in 2002
(Köse 2002). The research was carried out in Üzümlü, Bayırbağ and Pişkidağ
regions of Erzincan province between 1999-2001. In the study, 22 clones (24
Ü-KE 83, 24 Ü-KE 213, 24 Ü-KE 317, 24 Ü-KE 325, 24 PKE 407, 24 P-KE
410, 24 P-KE 425, 24 P-KE 1585, 24 Ü-KE 490, 24 P-KE 432, 24 Ü-KE 451, 24
Ü-KE 489, 24 Ü-KE 460, 24 P-KE 1823, 24 Ü-KE 477, 24 Ü-KE 500, 24 P-KE
521, 24 Ü-KE 971, 24 P-KE 1590, 24 Ü-KE 306, 24 P-KE 1833 ve 24 P-KE
1987), with a score of 650 and above were selected from among 200 clone vine
candidates according to weighting ranking score.
2.2. Ampelography
The first ampelography study carried out on this grape cultivar was in 1968
and it was determined that there were two types of ‘Karaerik’: ellipsoidal and
round (İştar 1968). For this grape cultivar, the shoot tip is yellowish-green,
with sparse felt hairs. Shoots are rounded, often corrugated, distinctly leathery,
sparsely hairy. The mature leaf is thin, straight, less wavy, deep five-part, slices
are prominent. The upper color of the leaf is bright green, the lower color is
matte green. Both the upper and lower parts of the leaf are sparsely hairy. The
petiole is of medium thickness, round, and sparsely hairy. It has U and V-shaped
petiole sinus. The shape of the cluster is largely clustered, branched cone,
medium density, homogeneous, and the berries are large. The peduncle is of
medium length, brittle, its upper side is brown, the lower side is greenish-red,