4、,随着贮藏时间的延长,POD活性也都经过了上升、下降的反复过程。低温条件下POD活性变化得相对缓慢。POD活性伴随着机械伤害而上升,机械损伤越严重,POD活性越高。关键词:砀山酥梨,机械损伤,生理生化,乙烯,呼吸强度IAbstractDangShanpeeriswellknownallofthe world ofitslong historyand the place oflocal varieties.Because ofthe peeriscrisp and contenthighmoisture, whenin transportation willlead to mechanicald
5、amageinevitably,So lead the commodityvalue and food quality decline.In domestic and foreigncountriesthe researchabout DangShanpeerare mainly concentrated inhow to storage,the researchabout mechanicaldamage willcause physiologicaland biochemicalchangeshave notbeenreports.Thisexperimentmadethe method
6、ofthe mechanicaldamagebyartificialsimulation,choosing two different damage degreesand stored intwo different temperature conditions,Do the researchabout physiologicaland biochemicalchangesin injured area fruits,Inorder todepth understanding the scienceofthe physiologicaland biochemicalreactionmechan
7、ismafter the mechanicaldamage,provide theoreticalbasisforpostharvestfruitsand vegetableshow to better storageand transport.The resultsshow that: 1.The mechanicaldamage canobviouslyinducethe generation