Manipulating Growth, Yield, and Quality of Tomato Fruit (Solanum lycopersicum L.): Influences of Gibberellin and Paclobutrazol

Kusumiyati, Kusumiyati; Trihamni, Hafiftin; Hamdani, Jajang Sauman

doi:10.22059/ijhst.2024.372246.771

Manipulating Growth, Yield, and Quality of Tomato Fruit (Solanum lycopersicum L.): Influences of Gibberellin and Paclobutrazol

Document Type : Research paper

Authors

Kusumiyati Kusumiyati

Hafiftin Trihamni

Jajang Sauman Hamdani

Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran, Sumedang, Indonesia

10.22059/ijhst.2024.372246.771

Abstract

The decline in tomato productivity is often attributed to climate change, as it disrupts the flowering and fruit formation processes. Gibberellin (GA3) and paclobutrazol (PBZ) function to stimulate flowering in plants. This research aimed to analyze the influences of GA3 and PBZ on the growth, yield, and quality of Tymoti F1 tomato fruits. The experiment was conducted from June to September 2022. A randomized complete block design (RCBD) was used consisting of the control (0 ppm), GA3 (50 ppm, 100 ppm, and 150 ppm), and PBZ (50 ppm, 100 ppm, and 150 ppm) treatments. The results showed that GA3 at 100 ppm increased plant height, number of flowers and fruits, fruit weight, Hue° value, and vitamin C content. The GA3 treatment at 150 ppm enhanced lycopene, β-carotene, and total carotenoid content. Paclobutrazol at 50 ppm improved the peel color (L* and b*). PBZ at 100 ppm increased the fruit diameter, and at 150 ppm increased the leaf chlorophyll index, flowering age, fruit set, soluble solids content (SSC), fructose, glucose, and total sweetness index (TSI) in the fruits.

Keywords

Concentration

Flowering

Fruit set

GA3

Growth regulator