Abstract
Effects of salt application on total soluble solids (TSS) and fruit weight were investigated in tomato plants grown in hydroponics.
In plants pinched above the third truss, there was a high negative correlation between TSS content and fruit weight. When electrical conductivity (EC) was reduced after anthesis of the third truss, TSS content was maintained around 9 % without severe reduction of fruit weight.
In plants pinched above the 8th truss, TSS content was about 9 % in all 8 trusses and the fruit weight of the upper trusses was not reduced by increasing the nitrogen concentration of the solution and maintaining EC 6 dS·m−1 throughout the cultivation.
