What causes hollow heart and fruit cracking in watermelons

(Agricultural Wealth Network) Causes of hollow heart and fruit cracking in watermelons: First, insufficient water supply during the fruit-swelling stage; second, temperatures that are too low during the fruiting period; third, poor plant growth. Fourth, harvesting the fruit too late. Causes of fruit cracking in watermelons: First, a sudden change in the water supply to the fruit during the fruiting period; after the watermelon absorbs water, the flesh expands too quickly, and the rind cannot grow fast enough to keep up with the flesh, so it splits. Second, when a long cloudy spell suddenly clears, the temperature rises too quickly and too high, which can also cause fruit cracking. Third, cracking is also likely to occur when the fruit is subjected to impact, squeezing, insect damage, weed damage, and other injuries. Fourth, varietal reasons. Varieties with rinds that are too thin or too crisp are prone to cracking.