AUTHOR(S) / AUTOR(I): Zoran Pržić, Aleksandar Simić, Nebojša Marković, Željko Dželetović, Snežana Brajević
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DOI: https://doi.org/10.46793/SBT26.303P
ABSTRACT / SAŽETAK:
This study evaluated effects of N fertilizer type and application rate on bunch structural indicators of Cabernet Sauvignon clones (15 and 412) grown in a inter row grass-covered vineyard with (60% Festuca rubra, 30% Lolium perenne and 10% Trifolium repens). Experiment included two nitrogen fertilizers (AN and KAN) and rates of 0, 50, and 100 kg N ha⁻¹. The yield of fresh and dry biomass and visual assessment of grass quality were monitored. For soil fertility analysis samples were collected from 0-30, 30-60 and 80-100 cm. The bunch structural indicators, sugar and total acids content in must were determined. N treatments affected structural parameters: bunch weight (130.2–196.6 g), epicarp weight per 100 berries (5.6–7.1 g) and seed number per 100 berries (160–235). Sugar content in must ranged from 20.4% to 24.1%. The results indicate that nitrogen application rate under grass-covered vineyard play an important role for bunch structure and technological quality of Cabernet Sauvignon clones.
KEYWORDS / KLJUČNE REČI:
Cabernet Sauvignon, clones, grass cover, structural indicators, grape quality
ACKNOWLEDGEMENT / PROJEKAT:
The research was financed by the Ministry of Education, Science and Technological Development, Republic of Serbia, project number: 451-03-34/2026-03/200116.
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