How to effectively prevent and control hollow heart in spring watermelons
Symptoms: Gaps or hollow cavities appear in the flesh inside the watermelon fruit. Causes: It occurs easily when fruit is set at low nodes, when excessive nitrogen nutrition causes rampant vine growth, or when fruit set is poor and leaf area increases. The main cause is excessive accumulation of nutrients in the plant. Hollow fruit usually shows longitudinal grooves on the fruit surface, with thick rind, irregular fruit shape...
Symptoms: Gaps or hollow cavities appear in the flesh inside the watermelon fruit.
Causes: It occurs easily when fruit is set at low nodes, when excessive nitrogen nutrition causes rampant vine growth, or when fruit set is poor and leaf area increases. The main cause is excessive accumulation of nutrients in the plant. Hollow fruit usually shows longitudinal grooves on the fruit surface, with thick rind, irregular fruit shape, and relatively high sugar content. However, hollow fruit formed due to vigorous growth and excessively large leaf area has a large fruit shape and relatively high sugar content. Triploid seedless watermelons have vigorous growth, and hollow fruit is more commonly seen in them.
Control measures: Carry out reasonable and moderate fertilization and pruning, and adjust the number of fruits set and the node position of fruit set.