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苹果采收是否适期,对果品产量、品质、贮藏力及经济收入等都有显著影响。据调查,苹果在充分成熟前,一般每天可增重1—1.5%。早采两周比适期采收,元帅减产20.3%,金冠减产18%,国光减产16.7%,红玉减产16.6%。且果实含糖量低,着色差,品质、风味不好。此外,在贮藏期间还易感染多种生理病害,如褐烫病、苦痘病等。同时对低温伤害也较敏感。但采收过晚,耐贮藏性就会大大降低。有些品种还会因落果过多,造成减产。因此
Appropriate apple harvest, the fruit yield, quality, storage and economic income have a significant impact. According to the survey, before the apple is fully matured, the daily gain can be increased by 1-1.5%. Two weeks earlier harvest than the appropriate harvest, the Marshal cut 20.3%, 18% reduction Golden Delicious, Guoguang 16.7% cut, red jade cut 16.6%. And the fruit sugar content is low, poor color, quality, flavor is not good. In addition, during storage is also susceptible to a variety of physiological diseases, such as brown hot disease, bitter pox disease. It is also sensitive to cold damage. However, harvesting too late, storability will be greatly reduced. Some varieties will also drop too much, resulting in reduced production. therefore