PHOTOSYNTHESIS AND VEGETATIVE-PRODUCTIVE ACTIVITIES OF THE OLIVE CULTIVARS 'ARBEQUINA', 'LECCINO' AND 'MAURINO' IN A VERY HIGH DENSITY OLIVE GROVE IN CENTRAL ITALY
A three-year-old very high-density olive grove was used in central Italy to compare photosynthesis and vegetative and productive activities of cultivar Arbequina against those of cultivars Leccino and Maurino, typical of central Italy. Arbequina had low vigor even though its canopy volume was not significantly less than that of Maurino, which was taller and had a more compact canopy than Arbequina. The total leaf surface area of Maurino was less than that of Arbequina and Leccino. Arbequina appears to put more resources into the formation of leaf surface area rather than into skeleton. Leccino had high vigor. The productivity of Maurino was greater than that of Arbequina and similar to that of Leccino. The production efficiency, calculated as the quantity of product per unit of leaf surface area or trunk section area, was higher in Maurino than in the other two cultivars. The greater production efficiency of Maurino could be the result of greater net photosynthesis per unit of leaf surface area and better distribution of light into the canopy, due to less empty space in the canopy compared to Arbequina and even less in comparison to Leccino. Although Maurino has a LAI that is greater than that of Leccino, it has better illumination within the canopy that is attributable, only in part, to the smaller canopy size. The satisfactory response of Maurino to the wall-training system will be of great interest if these initial findings are confirmed in the next years.
Proietti, P., Nasini, L., Ilarioni , L. and Balduccini, A.M. (2011). PHOTOSYNTHESIS AND VEGETATIVE-PRODUCTIVE ACTIVITIES OF THE OLIVE CULTIVARS 'ARBEQUINA', 'LECCINO' AND 'MAURINO' IN A VERY HIGH DENSITY OLIVE GROVE IN CENTRAL ITALY. Acta Hortic. 924, 111-116
Olea europaea L., tree leaf area, production efficiency, LAI, light distribution in the canopy