叶面营养对杨梅叶片光合作用及果实品质的影响  

Effects of foliar nutrition on leaf photosynthesis and fruit quailty of Chinese bayberry

作　　者：求盈盈[1] 沈波[2] 郭秀珠[3] 谢小波[1] 郑锡良[1] 戚行江[1] 张逸帆[2] 倪沙[2] 

机构地区：[1]浙江省农业科学院园艺研究所,杭州310021 [2]杭州师范大学生命与环境科学学院,杭州310036 [3]浙江省亚热带作物研究所,浙江温州325005

出　　处：《果树学报》2009年第6期902-906,共5页Journal of Fruit Science

基　　金：浙江省科技计划(2006C2098);浙江省科技协作计划(SN200802);杭州市科技发展计划(20070632B37)

摘　　要：研究了4种叶面营养液喷施对东魁杨梅果实品质及叶片光合作用的影响,结果表明,与对照相比,各处理果实的纵横径、平均单果质量、可溶性固形物、可食率、硬度和维生素C均有不同程度提高,果实Ca、Fe、K、灰分质量分数普遍提高,而出汁率略有下降;4种叶面营养处理均能快速提高叶片净光合速率(Pn)、蒸腾速率(E)与气孔导度(Gs),且E和Pn均与Gs的变化呈正相关关系;喷施叶面营养对叶绿素质量分数影响较小,但6月3日测量的4个处理的Fv/Fm和Yield均高于对照,说明叶面营养提高了PSⅡ反应中心内部的光能转换效率。Effects of 4 kind foliar nutrition liquids sprayed on fruit quality and leaf photosynthesis of Dongkui bayberry cultivar（Myrica rubra Sieb.et.Zucc.） were studied.Results showed that the fruit diameter（transversal and vertical）,the average fruit weight,the content of total soluble solids,the edible percentage,the firmness and the content of vitamin C in fruit were enhanced following all four foliar nutrition treatments.The contents of Ca,Fe,K and total ash were enhanced as well,while the juice percentage was slightly reduced.All the 4 foliar nutrition treatments could fastly increase the photosynthetic rate（Pn）,the transpiration rate（E） and the stomatal conductance（Gs） of leaf,and the value of either E or Pn was positively correlated with the value of Gs.Chlorophyll content was little changed,while Fv/Fm and yield were higher following foliar nutrition application,which suggested that the treatments might increase light conversion efficiency inside PSII reaction centre.

关 键 词：杨梅 叶面营养 光合作用 果实品质 叶绿素荧光参数 

分 类 号：S667.6[农业科学—果树学]