YIELD EFFICIENCY AND MECHANICAL HARVESTING WITH TRUNK SHAKER OF SOME INTERNATIONAL OLIVE CULTIVARS
The cultivar choice is fundamental for oil production as the cultural techniques such as mechanical harvest as well as environmental adaptability. In the period 2004-2007, in central Italy, in the region of Umbria, a trial was carried out to evaluate how some cultivars, such as Arbequina, Kalamata, Leccino, Manzanilla de Sevilla, Picholine, Picholine Marocaine and Sorani, adapt to environmental conditions and respond to mechanical harvesting by trunk shaker. The years 2006 and 2007 were characterised by very low rainfall during the ripening period and the 2005 year was off because a late frost damaged the inflorescences. The most productive cultivar resulted to be Leccino (19 kg olive/tree), followed by Kalamata, Picholine and Manzanilla de Sevilla. Besides, during the year, the cultivars Leccino, Kalamata and Picholine showed a steady productive behaviour. On the contrary Picholine Marocaine and Sorani showed a limited yield. The most vigorous cultivars, measured as crown volume, were Leccino and Kalamata (26 m3 in average) followed by Picholine and Sorani (19 m3 in average). The highest yield efficiencies were observed in Manzanilla de Sevilla and Arbequina (1 kg of olive/m3 of crown) and the lowest in Sorani (0.26 kg of olive/m3 of crown). The mechanical harvesting percentage was very high, over 91%, in Kalamata, Sorani, Picholine and Leccino; it was good (over 83%) in Picholine Marocaine and Manzanilla de Sevilla. Kalamata, Picholine Marocaine, Picholine and Manzanilla de Sevilla showed fruits with weight over 3 g and Leccino and Arbequina of 1.72 and 1.14 g respectively. All the oils were respondent to commercial standard with a variable content of polyphenols. The cultivars Leccino, Kalamata and Picholine for their good agronomic characteristics deserve, more than the others, to be tested on large scale for new plantations.
Farinelli, D., Ruffolo, M., Boco , M. and Tombesi, A. (2012). YIELD EFFICIENCY AND MECHANICAL HARVESTING WITH TRUNK SHAKER OF SOME INTERNATIONAL OLIVE CULTIVARS. Acta Hortic. 949, 379-384
'Arbequina', 'Kalamata', 'Leccino', 'Manzanilla', 'Picholine', 'Picholine Marocaine', 'Sorani'