SOME RELATIONS BETWEEN LEAF AREA AND FRUIT SIZE IN TOMATOES

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Abstract
Tomato plants grown in the greenhouse during the summer were defoliated to 1, 2, 3, or 4 leaves per plant and these plants were permitted to bear 1, 2, 3 or 4 fruits per plant. With 1 leaf per plant the efficiency was the greatest. By increasing the food producing area the fruit size was increased considerably, though not in proportion to the increase in the food material. This indicates that the fruit size is affected after the setting as well as before. The fact that the fruits did not increase in size in proportion to the increase in photosynthesizing area indicates that other factors than the nutrition at the time of enlargement influence the ultimate size of tomato fruits.

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