Research on Preventing the Cracking of Fresh-eating Jujubes in Hilly Regions in Sichuan

The experiment on preventing the cracking of fresh-eating golden silk jujubes has indicated that chemical spraying the field and plastic film covering can reduce the loss of dehiscent fruits in Deyang. Specifically, it is the most significant preventing cracking fruit effect to spray the liquid mixture of 20 mg·L^-1 a-NAA and 15 mg·L^-1 kinetin among plant growth regulators, and the cracking rate is 16.88%, which decreases by 24.35% as compared with the water control (41.23%). Meanwhile, Meigaimei is the best commodity chemical in reducing the cracking rate (16.98%), lowering 24.25% than the water control. However, the effect on preventing cracking of plastic film covering whose cracking rate is 16.39% reaches extremely significant level (p-0.01) as compared with the control, decreasing by 24.83% than the cracking rate of the control.