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system needs irrigation and introduces new cultivars in new environments.
So the evaluation of varietal ecophysiological response to irrigation is a crucial
topic. For this reason it was planned a research on two cultivars, Coratina and
Arbequina, trained according to high-density system. In 2009 the irrigation
was conducted according to the conventional management by applying an
irrigation frequency of 4 days. The leaf water potentials reached values
similar to the limits reported for the recovery within 48 hours. However,
plants showed a leaf water status and gas exchange recovery just after 24
hours from watering. The results
highlighted some varietal differences: Arbequina showed a better response to irrigation, while Coratina performed
a higher water use efficiency by a lower leaf transpiration.