Soybean (Glycine max L.) is a strategic food commodity in Indonesia, but its production declined by 34.06% in 2024 compared with the previous year. This study aimed to determine the growth and production of several soybean varieties in response to gibberellin (GA3) concentrations during the generative phase, as well as the interaction between the two factors. The study was conducted on farmland in Pasar 1 Tanjung Sari, Medan City, North Sumatra, at an altitude of ± 25 m above sea level, from January to March 2023. A Factorial Randomized Block Design with two factors and three replications was used. The first factor was soybean variety (Argomulyo, Grobogan, and Anjasmoro) and the second factor was gibberellin concentration (0, 25, 50, and 75 ppm). The observed parameters were the number of branches per sample, flowering age, and the number of pods per sample. The results showed that variety had a significant effect on the number of branches and the number of pods per sample, but had no significant effect on flowering age. The Grobogan variety produced the highest number of branches (8.22 branches) and pods (173.46 pods). Gibberellin application and the interaction between variety and gibberellin had no significant effect on any of the observed parameters. Keywords : gibberellin, soybean, varieties

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