Watermelon ripeness can be judged based on accumulated temperature

(Agricultural Wealth Network) This is a more objective and precise method. Generally, for extra-early-maturing small-fruit varieties, the accumulated temperature from flowering to maturity is around 700°C; for early-maturing varieties, it is around 800°C; for mid-maturing varieties, 900 to 1000°C; and for late-maturing varieties, above 1000°C. To use accumulated temperature as the basis for harvest, the average temperature should be measured and recorded every day, and the number of days from flowering to maturity or the average temperature during fruit growth should be calculated. For example, if a variety requires an accumulated temperature of 800°C to mature and the daily average temperature during the fruiting period is 25°C, then after the female flower blooms it needs 800÷25=32 (days) to mature.