The aim is to know the adequate quantity of Gibberelic Acid (GA 3) in-vitro dissemination at the potato. We selected young healthy seedling Diacol Capiro and Parda Pastusa plant varieties. We extracted the vegetative buds of 7 mm long approximately. We sowed each vegetative bud in a 60 cm 3-test tube that contained 6 ml. of culture medium, Vitamins, GA3, Sucrose, and Agar; with a pH 5.8. The tubes were placed in the growth-room under constant conditions of 1000 lux per 24-h, and at a temperature 20±2 C. We used a completely
