Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 2
Written by Alin DOBREI, Eleonora NISTOR, Alina Georgeta DOBREI, Mihaela MĂLĂESCU, Dragoș George CONSTANTINESCU, Teodor CRISTEA, Anca DRĂGUNESCU
The research carried out between 2021 and 2023 was primarily focused on managing the timing and frequency of copper application - an essential treatment in the control of diseases and pests. The grape varieties (Victoria, Muscat de Hamburg, Merlot, Cabernet Sauvignon, Fetească neagră) involved in the research were for table grapes and wine, with peculiar tolerance to frost, diseases, and pests. Experimental plots were organized based on several copper treatments correlated with disease and pest management. Several grape yield parameters, as well as berry composition and canes (berry sugar and vitamin content, cane carbohydrate content), were tracked for each of the six experimental plots within each grape variety. Simultaneously, an examination of how the vines survived during the winter as regards of wood maturity and bud viability was carried out, taking into account the major influence of copper on these parameters. The results showed that the grape varieties behaved differently from year to year, depending on the individual qualities of each variety.
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