Abstract:

Different concentration of ethephon and paclobutrazol was sprayed on the 15-year-old ‘Shixie’ longan fruiting trees during the terminal bud budding dates and the adaptive reagent preventing spring inflorescence with branch leaves was selected by observing the effects of ethephon and paclobutrazol on longan flower-bud differentiation. The results showed that 233 mg/L ethephon + 90 mg/L paclobutrazol, or 300 mg/L ethephon + 90 mg/L paclobutrazol showed the best on preventing longan spring inflorescence with branch leaves and causing flower cluster forming when they were sprayed at the beginning of spring longan flower cluster terminal bud becoming germinating and softening.