Practical class experience report: Use of phytohormone in mint germination
Keywords:
Mint, Phytohormones, Germination, Sustainability.Abstract
Mint is an aromatic herb that is widely exploited and used in many regions due to its extensive demand in the food, beverage, cosmetics and hygiene products industries. Consumed fresh or in essence form, it is used to relieve digestive problems, headaches, nausea and cold symptoms. Oilseed phytohormones are essential compounds (hormones) that regulate plant growth and development. The aim of this experiment was to assess the germination rate of mint seeds by applying phytohormones produced from white beans. 400 mL of distilled water was placed in a blender with 100 g of white beans and blended for about 5 minutes. The mixture was then filtered through a strainer and the mass was separated from the liquid, then the liquid was filtered again using paper to better separate the liquid from the substrate. The treatments were then separated into T1 - 3 mL, T2 - 6 mL and T3 - 9 mL of liquid per bag of substrate, where the bag was filled with Carolina Soil® substrate with stones at the bottom. After 10 minutes, the mint was sown, with 3 seeds per bag, and then thinned out. These bags were taken to the nursery for evaluation 15 days after sowing. The experiment was carried out in triplicate and Tukey's test was applied at 5% probability. It was observed that treatment 3 (9 mL) showed a better response when applied to the soil, thus increasing the speed of mint germination compared to the other two treatments (3 mL and 6 mL). This can be reinforced by the understanding that the minimum use of fertilizer and hormone in the soil is the maximum production.
