22,23,24-trisepibrassinolide

1. Growth Promotion: Increases plant DNA and protein content, stimulates plasma membrane ATPase activity, promotes cell elongation, and accelerates plant growth. For example, it increases yields of grain crops like rice and wheat by approximately 10%, while yields of fruit trees and cash crops can increase by 20%-30%.
‌2. Enhanced Photosynthesis: Increases RuBP carboxylase activity, accelerates CO₂ fixation, increases leaf area, deepens leaf color, and improves leaf quality.
‌3. Enhanced Stress Resistance: Enhances plant adaptability to stresses such as low temperature, high temperature, and salinity, reducing disease incidence.
‌4. Promotes Fruit Development: Accelerates fruit cell division, reduces fruit deformities, promotes organic matter transport, and accelerates ripening.