ABSTRACT This experiment about the effect of Gibberellin (GAZ) on growth and production of cauliflowers was ca- rried out at Tidar Village, South Magelang District, Magelang Town, Central Java from July until September 1987. The type of soil is Latosol, the altitude is 343 meters above sea level, soil pH: 6 and average temperature: 24°c. Experiment method was used Randomiz…