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1原因一是由于畸形花所致;二是由于在果实发育后期或转色期遇到强光照射,高温干旱,特别是久旱后灌大水,容易导致果皮生长与果肉组织的膨大速度不同步,膨压增大而出现裂果;三是使用植物生长调节剂不当,使用时浓度过大,水肥跟不上,引起生理失调而产生裂果:四是摘心过早,造成养分集中供应到果实而造成裂果。2预防措施2.1选择抗裂品种,一般选择果皮厚的中小型品种。2.2育苗期,特别是花芽分化期温度不要过高或者过低,白天温度保持在2-4℃左右,夜间温度保
1 due to malformation caused by the flower; the second is due to encounter late in the fruit development or color cast light irradiation, high temperature and drought, especially after a long drought irrigation water, easily lead to pericarp growth and pulp tissue expansion rate is not Synchronization, turgor increased cracking appear; third is the use of improper plant growth regulator, the use of excessive concentration, water and fat to keep up, causing physiological disorders and produce cracking: Fourth, the topping is too early, resulting in concentrated nutrient supply to the fruit Cause cracking fruit. 2 Preventive Measures 2.1 Selection of anti-cracking varieties, the general choice of small thick peel varieties. 2.2 nursery period, especially in flower bud differentiation temperature not too high or too low, the daytime temperature is maintained at about 2-4 ℃, night temperature protection