Properly applying suitable plant growth regulators to solanaceous vegetables during the flowering stage can significantly boost fruit set. This technique is particularly effective under adverse conditions—such as low temperatures, poor light, or inadequate pollination—and is a standard, proven method for flower and fruit retention in the cultivation of these crops.
Core Mechanisms for Promoting Fruit Set
Fine-tunes the balance of endogenous hormones, helping the plant successfully complete the entire sequence of flower bud differentiation, pollination, and ovary expansion under unfavorable conditions, thereby reducing flower and fruit drop.
Enhances pollen viability and promotes pollen tube elongation, substantially increasing fertilization success rates and preventing issues like "empty flowers" (unfertilized blossoms) and bud drop caused by poor pollination.
Thickens the receptacle and helps petals adhere longer; fosters robust early fruit development and uniform fruit set distribution, establishing a solid foundation for subsequent fruit enlargement.
