Growth and Development of Tomato Fruit as Affected by 2, 3, 5-Triiodobenzoic Acid (TIBA) Applied to the Peduncle

Abstract

Effect of 2, 3, 5-triiodobenzoic acid (TIBA) on growth of pollinated tomato (Lycopersicon esculentum Mill. cv. Momotaro) fruits was investigated. Lanolin with and without TIBA was applied to peduncles of tomato trusses and the flowers pollinated by vibrating them. In TIBA-treated plants, indole-3-acetic acid (IAA) level was maintained higher in fruits up to 21 days after pollination, the seeds weighed less than those from normally pollinated fruits, the degree of puffiness was more severe, and many fruits had symptoms of a physiological disorder, blossomend rot.