Practical class experience report: Use of phytohormone in mint germination

Mint is an aromatic herb widely explored and used in many regions due to its high demand in the food, beverage, cosmetics and hygiene products industries based on the plant. Consumed in natura or in essence form, it is used to relieve digestive problems, headaches, nausea and cold symptoms. Phytohormones of oilseeds are essential compounds (hormones) that regulate the growth and development of plants. The objective of this experiment was to evaluate the germination rate of mint seeds applying phytohormones produced from white beans. 400 mL of distilled water was placed in a blender with 100 g of white beans, and allowed to blend for approximately 5 minutes. The mixture was then filtered in a colander and the mass separated from the liquid, then the liquid was filtered again using paper to better separate the liquid from the substrate. From there, the treatments were separated into T1 - 3 mL, T2 - 6 mL and T3 - 9 mL of liquid per substrate bag, where Carolina Soil® substrate with stones was placed in the bag. After waiting 10 minutes, the mint was sown, with 3 seeds per bag, for later thinning. These bags were taken to the nursery for evaluation after 15 days of sowing, and the experiment was carried out in triplicate and the Tukey test was subsequently applied at 5% probability. It was observed that treatment 3 (9 mL) presented a better response when applied to the soil, thus increasing the speed of mint germination in relation to the other two treatments (3 mL and 6 mL). This can be reinforced, as it is understood that the minimum use of fertilizer and hormone in the soil is the maximum production.