关键词: 鸭梨, 多胺, 呼吸, 乙烯

Abstract: In this paper, the effects on respiration,ethylene production,flesh firmness,soluble solids and content of carbondioxide in core freated with polyamine were researched by experments to ‘Ya’pear. The results showed that spermidineand spermine had a significant restraint effect on the respiration and ethylene production. When stored for 240 days, the fruitsoluble solids and fruit firmnes of polyamine treatment had a significantly higher content than those of the control (p<0.01),whilethe exponent of fruits core browning had a significantly lower value than that of control (p<0.01).

Key words: Ya&rsquo, pear, polyamine, respiration, ethylene