华北农学报Issue(3)：153-162,10.DOI:10.7668/hbnxb.2015.03.027
甘蓝型油菜叶片和角果气体交换参数差异的比较
Comparison of Photosynthetic Gas Exchange Parameters Between Leaf and Pod of Brassica napus under Different Conditions
摘要
Abstract
To research difference of photosynthesis characteristic between leaf and pod of rape , the hybrid of Brassica napus Qinyou No.7 with double low and high oil content was chosen to compare the difference of photosyn-thetic gas exchange parameters between leaf and pod under different illumination , CO2 concentration , temperature and time in one day .The results were as below:The change trends of photosynthetic gas exchange parameters of leaf and pod were same along with the change of illumination ,CO2 concentration ,temperature and time in one day .Under the condition of same illumination , the net photosynthetic rate ( Pn ) , stomatal conductance ( Cond ) , tramspiration rate (Trmm),water use efficiency (WUE),limitation stomatal value (Ls) and light quantum efficiency of leaf were all higher than pod in contrast with the intercellular CO 2 concentration ( Ci) ,light saturation point ,light compensa-tion point and light respiration rate of leaf were lower than pod .Under the condition of same CO 2 concentration ,the Pn,WUE,Ls and carboxylation efficiency of leaf were higher than pod ,but the Ci,CO2compensation point and CO2 saturation point and were lower than pod .The optimum temperature of photosynthesis of leaf was lower than pod and the Pn,Cond,Trmm,Ls of leaf were higher than pod in contrast with Ci and WUE of leaf were lower than pod in the range of each optimum temperature and same temperature .The Pn,Cond,Ls and WUE of leaf were higher than pod but the Ci and Trmm were lower than pod in range of whole daily change .关键词
甘蓝型油菜/角果与叶片/气体交换参数/差异Key words
Brassica napus/Leaf and pod/Gas exchanges parameters/Difference分类
农业科技引用本文复制引用
张耀文,赵小光,田建华,王辉,王学芳,李殿荣,赵兴忠,王竹云..甘蓝型油菜叶片和角果气体交换参数差异的比较[J].华北农学报,2015,(3):153-162,10.基金项目
陕西省科技统筹创新工程计划项目（2014KTCQ02-01）；渭南市重大科技专项（2013TCZX-1）；国家油菜现代产业技术体系建设专项（CARS-13）；杨凌示范区科技计划项目 （）
