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Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Gultekin OZDEMIR, Abdullah SESSIZ, Resat ESGICI, Ahmet Konuralp ELICIN

This study was carried out to determine the cutting properties of different wine grape canes as a function ofmoisture content, canes’ diameter and variety. Cutting properties of cutting force, cutting strength, cuttingenergy and specific cutting energy were measured in eight different wine grape varieties. Canes of 'Tannat’,'Merlot’, 'Cot’, 'Chardonnay’, 'Viognier’, 'Cabernet Sauvignon’, 'Shiraz’ and 'Cabernet Franc’ were profiledfor their cutting properties during the dormant season. The results of data analysis showed that there was asignificant difference between mean values of cutting properties varying based on variety. The resultsdemonstrated that the maximum cutting force, cutting strength and cutting energy for 'Cabernet Franc’ grapevariety were 1397.60 N, 21.68 MPa and 3.68 J, respectively. The minimum cutting force, cutting strength andcutting energy were obtained at 'Tannat’ grape variety and it was 981.65 N, 13.94 MPa, and 2.39 J,respectively. Whereas, the maximum specific cutting energy obtained at 'Chardonnay’ was 0.256 Jmm-2, whilethe minimum specific cutting energy obtained at 'Tannat’ grape variety was 0.219 Jmm-2. In conclusion, findingsdemonstrated that the cutting properties were related to the physiological, physical and mechanical properties ofthe grape branches. Therefore, the grape variety should be taken into account for the design of a suitable prunermachine.

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