Naslov
Impact of late winter pruning of Portugieser grapevines (Vitis vinifera L.) on yield components and grape composition

Autori
Anić, Marina ; Osrečak, Mirela ; Štambuk, Petra ; Ljubičić, Lovre ; Karoglan Marko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Skup
58th Croatian & 18th International Symposium on Agriculture

Mjesto i datum
Dubrovnik, Croatia, 11.02.2023. - 17.02.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
grapevine, anthocyanins, late pruning, polyphenols

Sažetak
Postponing pruning until early spring has been shown to be an effective way of delaying vine phenology. We investigated the effects of the timing of late winter pruning on ‘Portugieser’ vines in northwestern Croatia (2021), on yield, berry primary and phenolic composition. Late winter pruning (at the time of budbreak of basal buds and when two to three leaves were separated) was compared with standard winter pruning. Late winter pruning at budbreak resulted in grapes with the highest total phenolic and anthocyanin content and the lowest sugar and flavonol content at harvest, while late winter pruning performed when two to three leaves were separated had the highest titratable acidity and lowest total phenolic content.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA