摘要： 苹果(新红星和金矮生)果实生理落果的早期、后期乙烯释放率较低,其高峰期乙烯释放率较高.果实乙烯释放率与1-氨基环丙烷-1-羧酸(ACC)含量因发育状况不同而不同.生理落果的早期,果实中的过氧化物酶活性较低,高峰期过氧化物酶活性迅速增大.果实不同部位的过氧化物酶(POD)活性及同工酶谱有明显差别.

关键词: 苹果, 果实, 早期发育, 乙烯, 过氧化物酶

Abstract: The ethylene evolution rate from apple fruits is lower at the early and late stages of "physiological drop" than that at the drop peak stage. Both ethylene evolution rate and ACC content in the fruits vary in accordance with the development state of the fruits. The peroxidase (POD) activity in the fruits is lower at the early stage of "physiological drop" and very high at the drop peak stage. Both POD activity and isoenzyme spectrum are different in different organs.

Key words: Apple fruits, Early development, Ethylene, Pcroxidasc