1. Growth and amino-acid content of the bleeding sap and roots of flowering and fruiting tomato plants were compared with those of deflowered plants. 2. The vegetative growth of fruiting plants decreased. 3. The amino-acid concentration of the bleeding sap increased at first with the age of the plants. After flowering it decreased in the flowering and fruiting plants, and was about constant in the deflowered plants. Roots of fruiting plants contained less amino-acid. 4. Although the bleeding sap of some roots contained hardly any amino acids, the amino-acid content of the roots was about normal. It is concluded that a pool of free amino-acids is present in the root, which is not directly available for the bleeding sap.