ISHS Acta Horticulturae 278: Symposium on Scheduling of Irrigation for Vegetable Crops under Field Condition
EVAPOTRANSPIRATION, GROWTH AND YIELD OF FRESH MARKET TOMATO (LYCOPERSICON ESCULENTUM MILL.) AT TWO IRRIGATION LEVELS |
| Authors: | G. Gianquinto, P. Ceccon, R. Giovanardi |
| Abstract:
A two-year experiment was carried out on fresh market tomato grown in lysimeters to evaluate evapotranspiration, crop coefficients and vegetative and productive behaviour. In the two years, the crops were grown with different training systems, which affected the canopy architecture and the ground cover; two irrigation levels were tested (irrigation at 80 % soil available water and irrigation at 50 % a.w.). The seasonal ET resulted higher in the well irrigated treatment; a fraction of these amounts was extracted from the initial soil water content. Crop coefficients (Kc) were markedly influenced by both the canopy architecture and the model used to evaluate the reference ET. No remarkable differences on vegetative traits and on the earliness of the crop were experienced between the treatments. A reduced yield was observed at the lower irrigation level, due to a decrease in the average weight of the fruits. | |
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