Influence of different levels of irrigation on some physical-chemical parameters of strawberry fruits (Fragaria hybridus)

Abstract

The influence of different levels of irrigation of a strawberry culture (cultivar SH2) on solubles solids, reducing sugars, pH and titratable acidity of the fruit, was investigated. Five irrigation levels based on the evaporation rate of the Class A Tank, namely 0,4; 0.6, 0.8, 1.0 and 1.2 "f" factor were tested. Four replications of 36 plants each were used for every level of irrigation. The fruits were harvested at approximately 15 day intervals, in a total of six harvestings. Statistical analysis of the results showed significative differences in pH, soluble solids and titratable acidity, but without explainable tendency except for soluble solids contents, which were higher in the factor 0.4 (less water reposition) and lower in the factor 1.2. These differences, however, have little or none technological significance.