果树学报2011，Vol.28Issue(5)：750-754,5.
梨杂种苗童区和成年区叶片光合荧光特征及超微结构研究
Photosynthetic fluorescence characteristics and ultrastructure of juvenile zone and adult zone in pear hybrid seedlings
摘要
Abstract
7-year-old pear hybrid seedlings of Huasu × Xizilv were used to investigate the photosynthetic fluorescence characteristics and ultrastructure characteristics of juvenile zone and adult zone.Results indicated that under different light intensities,the photosynthetic fluorescence characteristic variation trends of leaves are similar in juvenile zone and adult zone.But the leaves in adult zone have much higher net photosynthetic rate（Pn）,stomatal conductance（Gs）,transpiration Rate of winter wheat（Tr）,intercellular CO2 concentration（Ci）,light saturation point（Im）,apparent quantum yield（AQY）,photochemical quenching（qP）,quantum yield of PSII photochemistry（ФPSⅡ）,non-pho-tochemical quenching（NPQ） and electron transport rate（ETR）compared to juvenile zone,which maybe correlated with the different chlorophyll content and ultrastructure characteristics.关键词
梨/杂种苗/童区/成年区/光合作用/叶绿素荧光/超微结构Key words
Pear/Hybrid seedlings/Juvenile zone/Adult zone/Photosynthetic/Fluorescence characteristics/Ultrastructure分类
农业科技引用本文复制引用
蔺经,杨青松,王中华,李晓刚,常有宏..梨杂种苗童区和成年区叶片光合荧光特征及超微结构研究[J].果树学报,2011,28(5):750-754,5.基金项目
江苏省省自主创新项目(CX(10)108) （CX(10）
