HIGH-TEMPERATURE INHIBITION OF SEED GERMINATION OF HEMP (CANNABIS SP.)

This study aimed to inhibit the germination of hemp seeds (Cannabis sp.) by heat treatment. The hemp seeds were kept at eight different temperatures of 20°C (control) and 45, 55, 65, 75, 85, 95 and 105°C for eight different exposure times (0 minutes (control) and 1, 10, 60, 180, 360, 720 and 1440 minutes). The experiment was repeated four times. The seeds that were subjected to the treatment were placed into the germination environment at 20±1°C. The seeds that germinated at the 3rd, 7th and 12th days were counted and their germination was observed. The counts at the 12th day showed that germination of the hemp seeds was inhibited by the heat treatments at 85, 95 and 105°C. The study revealed that hemp seeds should be kept at 85°C for 24 hours to inhibit their germination.