Fig. 7. (a) Average fresh weight per ripe fruit of tomato cultivar Counter grown
in nutrient solutions containing either low (N1) or high (N2) nutrient concentration
(controls), or after transfer of plants to lower (N2/1) or higher (N1/2)
nutrient concentration. The inset shows the differences between N2/1 or N1/2
and their corresponding controls as correlated with time. Average concentrations
of (b) osmolytes, sugars and acids or (d) proline of ripe tomato fruit, or (c
and e) contents per fruit as dependent on the treatment applied