通过调整叶果比、环剥和应用CPPU等处理 ,研究了源库关系的变化对‘秦美’猕猴桃果实特性的影响。结果表明 ,源库关系的变化对果实大小的影响大于对品质和其他特性的影响 ;结果蔓上叶果比2～ 4∶1可以满足果实正常生长发育的需要 ;果实库力是影响果实大小的主要因素。对果实细胞数目与果实大小、硬度与Ca含量之间的关系进行了讨论。 By adjusting the ratio of leaf to fruit, girdling and applying CPPU, the effects of the relationship between source and sink on the fruit properties of ’Qin Mei’ kiwifruit were studied. The results showed that the change of source-sink relationship had more effect on the fruit size than that on the quality and other characteristics. The results showed that the leaf-fruit ratio of 2 to 4:1 could meet the requirement of normal fruit growth and development. The fruit- major factor. The relationship between the number of fruit cells and fruit size, hardness and Ca content was discussed.