The period spanning from the onset of flowering to the swelling of young fruitlets constitutes a critically important stage in the grape growth cycle. The effectiveness of management during this phase directly determines both the yield and quality of the grapes produced in the current year.

Flower bud differentiation is the critical factor determining high yields, stable production, and superior quality in crop fruit production. Only through effective management during this specific period can high crop yields be guaranteed.

Scientific and Rational Use of Plant Growth Regulators: On the morning of the day a female flower opens—or on the day prior—prepare a diluted solution of Pinsoa 0.1% Forchlorfenuron. Uniformly spray the solution onto both the upper and lower surfaces of the developing fruit (ovary).

The first batch of watermelons in spring sets fruit early, matures early, and commands a high price. However, unstable spring weather makes fruit setting difficult, leading to a high risk of fruit drop. Improving the fruit setting rate and preventing fruit drop is a primary concern for watermelon growers.