The Effect of Temperature on Germination of Southern-type Garlic during Early Growth Stage

Changes of germination rate of southern type garlic were investigated using chambers with 5 temperature treatments of 10°C, 15°C, 20°C, 25°C, and 30°C. Two sets of 32-hole tray, planted 64 garlic cloves, were set in each chamber, and investigated germination rate with daily-base. Germination rate of garlic were highest at 15°C treatment, and were decreased by increasing or decreasing temperature from experiment. From 50% germination days at each temperature, which were estimated from curve fitting using experiment data, an exponential equation was developed to estimated germination rate from daily temperature. Based on the equation, germination rate was highest of 0.1007 % per day at 13.4°C. To test germination model, garlic were planted with different planting date in the field. Field experiment data revealed that germination model can predict well the initiation time and the pattern of germination of garlic with well cultivated condition.