Articles
RESPONSES OF PROCESSING TOMATO TO WATER REGIME AND FERTILIZATION IN CENTRAL ITALY
Article number
487_88
Pages
531 – 536
Language
Abstract
In a study carried out at Viterbo, 9 drip irrigation treatments and 3 fertilization treatments were compared in a split-plot experiment.
Water deficits were imposed by reducing irrigation volumes to 50% or 75% of crop evapotranspiration in 2 growth periods: before or after fruit set.
Irrigation deficit in the 1st growth period reduced the number of flowers leading to a decrease in the number of fruits and in the marketable yield.
Water deficits improved the quality of fruits increasing soluble solids and acidity.
Reducing irrigation by 25% before fruit set and by as much as 50% in the fruit development and ripening stages resulted in no significant decrease of soluble solid yield.
Fertilization affected mainly plant vegetative growth, increasing LAI and biomass.
Water deficits were imposed by reducing irrigation volumes to 50% or 75% of crop evapotranspiration in 2 growth periods: before or after fruit set.
Irrigation deficit in the 1st growth period reduced the number of flowers leading to a decrease in the number of fruits and in the marketable yield.
Water deficits improved the quality of fruits increasing soluble solids and acidity.
Reducing irrigation by 25% before fruit set and by as much as 50% in the fruit development and ripening stages resulted in no significant decrease of soluble solid yield.
Fertilization affected mainly plant vegetative growth, increasing LAI and biomass.
Publication
Authors
G. Colla, R. Casa, B. Lo Cascio, F. Saccardo, O. Temperini, C. Leoni
Keywords
drip irrigation, fruit quality, growth period, fruit set, water deficit
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