(1) Symptoms and Causes When the watermelon is ripe, the peel will crack and lose its value. In general, thin-skinned varieties are more likely to crack fruits than thick-skinned varieties. In addition, after continuous drought, sudden flooding or continuous raining, large amounts of nutrients enter the fruit, so that the melons grow much faster than the pericarp, and to a certain extent, the pericarp is broken and the cracking is formed.
(2) Prevention and control methods When thin-skinned varieties are cultivated, care should be taken when harvesting and transporting to reduce shocks and collisions. Water should be supplied evenly during the fruit expansion period to prevent it from drying out. The open-cultivated watermelons, such as continuous drought and sudden heavy rain, can be used to twist the vines or fruit handles to reduce the transport of water into the fruit, and can also achieve the purpose of reducing fruit cracking.
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