Research Information System
ÇOMÜ ZIRAAT FAKÜLTESI DERGISI, vol.11, no.2, pp.239-245, 2023 (Scopus)
‘Crimson Seedless’ grape variety is a late maturity and small berry size. Berry size is one of the most
important quality parameters of table grapes. This trial was carried out in the Crimson Seedless (Vitis vinifera L.)
grower vineyard in Sarıgöl (dadağlı) locality of Manisa province in the 2022 vegetation period. A randomized
complete block design was used with vines as blocks and clusters as the experimental unit’s four treatments and
four replications. Vine bunches of Crimson Seedless grape variety, ten years old, were sprayed extensively with
a GA3 (Gibberellic Acid) solution (20 mg L-1
) on the 25th of April 10th of May, and 10th of June/2022, while
girdling (G) was applied from removing 3 mm diameter bark all around from 10 cm below the top of the vine
trunk at fruit set stage. Control (C) only water was sprayed. This study aimed to reveal gibberellic acid and cane
girdling applications on Crimson Seedless cluster and berry characteristics. Harvest (
oBrix 19) was done on the
10th of October/2022 and after that, the cluster weight (g), cluster length (cm), cluster width (cm), berry weight
(g), berry length (mm), berry diameter (mm), berry length/berry diameter, total soluble solid, total acidity and
maturity index were determined in fresh fruit samples randomly taken from each vine. It was found that all
applications generally had statistically (P<0.05) significant effects on grape cluster weight, cluster length, cluster
width, berry weight, berry length (BL), berry diameter BD), BL/BD, total soluble solid, total acidity, and
maturity index in Crimson Seedless variety.
As a result of this study, general recommendations are made of GA3+G, and G as the most suitable applications
for growing the Crimson Seedless table grape variety.