Articles

DISTRIBUTION OF DRY MATTER AND AMOUNT OF MINERAL ELEMENTS IN IRRIGATED AND NON-IRRIGATED OLIVE TREES

Article number
474_79
Pages
381 – 384
Language
Abstract
Soil water deficit modifies physiological and metabolic activity in olive trees and leads to a different distribution of dry matter and nutrients absorbed by the roots.

The aim of this study was to evaluate the effects of water deficit on the distribution of dry matter between the different olive tree organs and the amount of mineral elements absorbed from the soil during the first years after planting.

This study was carried out in Southern Italy on ownrooted trees planted in 1992 at distances of 6×6 m.
During the first year, the whole plot was irrigated.
From 1993 onwards, 38 trees were not irrigated.

Significant differences between treatments were observed on dry matter accumulation and partitioning, root-canopy ratio and yield.
The results showed that water deficit caused the reduction of canopy growth and the increase of the root-canopy ratio.
The total amount of mineral elements and dry matter was higher in the irrigated plants with respect to the non-irrigated ones.

Publication
Authors
G. Celano, B. Dichio, G. Montanaro, V. Nuzzo, A.M. Palese, C. Xiloyannis
Keywords
Olea europaea L., water deficit, fertilization
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