摘要
用联苯胺比色法测定了玖瑰香葡萄、鸭梨、杏和毛桃叶片中ＰＯＤ活性。结果表明：不同ＰＶＰ加入量对果树叶片的ＰＯＤ活性有很大影响，ＰＶＰ加入量为０．１２５ｇ时，玖瑰香葡萄叶片的ＰＯＤ活性最大；加入０．０５ｇＰＶＰ时，杏叶片的ＰＯＤ活性最大；加入０．２ｇＰＶＰ时毛桃叶片的ＰＯＤ活性最大（叶片均取０．５ｇ左右。）
ThePODactivityinleavesofgrape(cv.MuscatHamburg),dockpear,apricotandwildpeachwasinvestigatedusingthemethodofBenzidinecolorimetricanalysis.TheresultsshowedthatPVPhadgreatinfluenceontheactivityofPODinfruittreeleaves.ThegreatestactivityofPODwouldbeobservedwhentheaddedamountofPVPwas0.125gforgrape,0.05gforapricotand0.2gforwildpeach.
