Naslov
The influence of early hand and mechanical leaf removal on Sauvignon blanc, Merlot and Cabernet Sauvignon (Vitis vinifera L.)

Autori
Drenjančević, Mato ; Jukić, Vladimir

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka 48. hrvatskog i 8. međunarodnog simpozija agronoma / Marić, Sonja ; Lončarić, Zdenko - Osijek : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2013, 296-297

ISBN
978-953-7871-07-9

Skup
48. hrvatski i 8. međunarodni simpozij agronoma

Mjesto i datum
Dubrovnik, Hrvatska, 17.02.2013. - 22.02.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
early leaf removal ; yield ; soluble solids ; total acidity ; Vitis vinifera

Sažetak
The aim of this research was to identify the impact of early hand and mechanical leaf removal on yield, soluble solids and total acidity in must of Sauvignon blanc, Merlot and Cabernet Sauvignon. The research was carried out during year 2012, located in Zmajevac, east continental vinegrowing region, subregion Podunavlje, vineyards Baranja. The experiment was set up according to split-plot desing with three cultivars in three replications and was composed of control treatment (without leaf removal), mechanical defoliation and hand defoliation (removing 6 lower leaves per shoot). Hand and mechanical defoliation was performed either pre-bloom (E-L stages 16-17). Hand defoliation treatments significantly decreased average yield for P≤0, 01, considering the control and mechanical defoliation treatments. There were no significant differences in yield between control and mechanical defoliation treatments. Hand defoliation affected the reduction of yield in cultivar Sauvignon blanc the most. Applied treatments haven't affected the change of sugar content in must. Total acidity in must hasn’t variated in varieties same as in certain treatments. Cabernet Sauvignon significantly increased average total acidity for P≤0, 01, considering the other two cultivars. Merlot significantly increased average sugar content, considering the other two cultivars.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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