模拟酸雨对桃梨叶片和果实的影响  

Effect of simulated acid rain on leaves and fruits of peach and pear.

作　　者：吕均良[1,2] 李三玉[1,2] 黄寿波 

机构地区：[1]浙江农业大学园艺系 [2]浙江农业大学生物科学系

出　　处：《浙江农业大学学报》1998年第6期603-607,共5页

基　　金：浙江省教委科研基金

摘　　要：研究了模拟酸雨对桃梨叶片和果实的影响．结果表明：①经ｐＨ３．５，２．５，２．０的酸雨处理后，叶片在短期内出现不同程度的可见性伤斑，叶绿素含量和净光合速率下降，细胞膜透性明显增大．相对电导率与模拟酸雨ｐＨ值的相关系数为－０．８４６６＊（桃）和－０．８５６０＊（梨）．②模拟酸雨处理后的果实大小和品质有下降趋势（但差异不显著）．而且果实的贮藏性明显下降．③桃和梨受酸雨危害的情形基本一致。This study was intended to obtain information about the effects of simulated acid rain on leaves and fruits of peach and pear The results are as follows ①The leaves treated with simulated acid rain with pH 3 5, 2 5 and 2 0 showed injury spots of various extent and reduction in chlorophyll content and net photosynthetic rate However, the treatment led to marked increase in cell membrane permeability There was significant negative correlation between relative electric conductivity and the pH value of simulated acid rain with the correlation coefficients of -0 846 6 * (for peach) and -0 856 0 *(for pear) ②Treatment with simulated acid rain also caused a reduction in fruit weight and overall quality, but not so significantly. The shortening of storage life is, however, remarkable ③The effects of simulated acid rain on peach and pear were essentially alike with the former being more sensitive

关 键 词：模拟酸雨 桃 梨 细胞膜透性 光合作用 贮藏性 

分 类 号：S662.101[农业科学—果树学] X517.032.3[农业科学—园艺学]