Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate

Önder Kamiloğlu

doi:10.16882/hortis.1847119

Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate

Abstract

In viticulture, growing techniques affect fruit quality and yield, depending on environmental conditions and the characteristics of varieties. In this study, the effects of leaf removal (LR1(ABS), LR1(V), LR2(BF/ABS), and LR2(BF/V)) and berry thinning (BT) treatments (BT(+) and BT(-)) in the Prima early table grape variety were examined. Leaf removal treatments at different periods in shoots increased cluster width (LR1(V) and LR2(BF/ABS)) and cluster size (LR1(V)). In terms of berry characteristics, no significant effect of leaf removal was determined. Berry color index (CIRG) values were higher in the LR2(BF/ABS) and LR2(BF/V) treatments compared to the single-period leaf removal treatments (LR1(ABS), BT(-), LR1(ABS), BT(+), LR1(V), BT(-), LR1(V), BT(+)). It was observed that performing leaf removal once at the berry set (LR1(ABS)) increased acidity content, while performing it at the veraison (LR1(V)) raised pH and maturity index values. While Photosystem II (PSII) and SPAD values of leaves in the leaf removal treatments were found similar, the highest PSII value of lateral shoot leaves was found in the LR1(V) treatment. Berry thinning at the rate of 1/3 in the cluster significantly increased cluster width, cluster homogeneity, berry length, 100-berry weight, and CIRG values compared to the control plants. Consequently, due to the partially observed different effects of leaf removal and berry thinning, it was concluded that investigating the effects of these treatments on some yield, quality, and canopy microclimate characteristics considering the timing and method of treatments together with varieties and changing climate characteristics would be beneficial.

Keywords

References

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Details

Primary Language

English

Subjects

Horticultural Production (Other)

Journal Section

Research Article

Authors

Önder Kamiloğlu
0000-0002-1470-8953
Türkiye

Early Pub Date

December 29, 2025

Publication Date

December 29, 2025

Submission Date

December 1, 2025

Acceptance Date

December 26, 2025

Published in Issue

Year 2025 Volume: 42 Number: 3

DOI

https://doi.org/10.16882/hortis.1847119

IZ

https://izlik.org/JA28DG84RN

Cite

RIS / Bibtex

APA

Kamiloğlu, Ö. (2025). Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate. Horticultural Studies, 42(3), 136-144. https://doi.org/10.16882/hortis.1847119

AMA

1.Kamiloğlu Ö. Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate. HortiS. 2025;42(3):136-144. doi:10.16882/hortis.1847119

Chicago

Kamiloğlu, Önder. 2025. “Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis Vinifera L.) Grapevines Grown in Hot-Warm Climate”. Horticultural Studies 42 (3): 136-44. https://doi.org/10.16882/hortis.1847119.

EndNote

Kamiloğlu Ö (December 1, 2025) Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate. Horticultural Studies 42 3 136–144.

IEEE

[1]Ö. Kamiloğlu, “Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate”, HortiS, vol. 42, no. 3, pp. 136–144, Dec. 2025, doi: 10.16882/hortis.1847119.

ISNAD

Kamiloğlu, Önder. “Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis Vinifera L.) Grapevines Grown in Hot-Warm Climate”. Horticultural Studies 42/3 (December 1, 2025): 136-144. https://doi.org/10.16882/hortis.1847119.

JAMA

1.Kamiloğlu Ö. Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate. HortiS. 2025;42:136–144.

MLA

Kamiloğlu, Önder. “Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis Vinifera L.) Grapevines Grown in Hot-Warm Climate”. Horticultural Studies, vol. 42, no. 3, Dec. 2025, pp. 136-44, doi:10.16882/hortis.1847119.

Vancouver

1.Önder Kamiloğlu. Effects of Berry Thinning and Leaf Removal on Yield and Fruit Quality of Prima (Vitis vinifera L.) Grapevines Grown in Hot-Warm Climate. HortiS. 2025 Dec. 1;42(3):136-44. doi:10.16882/hortis.1847119