Abstract
Fruit setting, fruit thickening characteristics of the parthenocarpic tomato variety ‘Renaissance’ in spring, early summer, autumn and winter which are the blooming seasons of the main cropping system in Aichi prefecture were examined. Fruit setting percentage of ‘Renaissance’ in spring, early summer, autumn, winter was very high. There were no undergrown fruit and the parthenocarpic characteristics of ‘Renaissance’ were very strong in these seasons. In ‘Renaissance’, fruit weight and days required till harvest were not influenced by production of seeds or treatment with 4-chlorophenoxy acetic acid (15 mg/L). These results suggested that productivity of ‘Renaissance’ was higher than that of the non-parthenocarpic tomato variety.
