生态学杂志2017，Vol.36Issue(12)：3510-3516,7.DOI:10.13292/j.1000-4890.201712.013
大气CO2浓度升高对辣椒光合作用及相关生理特性的影响
Effects of elevated [CO2] on photosynthesis and relevant physiological characteristics of pepper (Capsicum annuum L.)
摘要
Abstract
Studying the effect of elevated atmospheric CO2 concentration on photosynthesis and relevant physiological characteristics of pepper and revealing the relationship between atmospheric CO2 concentration and photosynthesis and physiological indexes of pepper can provide a theoretical basis for the cultivation and fruit processing of pepper.Changes in morphological parameters,leaf physiological indexes,photosynthesis,photosynthetic pigment content,Vc content,biomass and yield in response to elevated CO2 concentration (control level+200 μmol · mol-1) were determined in pot experiment using an open-top chamber (OTC) experimental facility.The results showed that the elevated CO2 concentration promoted the growth of pepper and increased plant height,yield and total biomass.At elevated CO2 concentration,leaf net photosynthetic rate (Pn),intercellular CO2 concentration (Ci) and water use efficiency (WUE) increased,stomatal conductance (Gs) and transpiration rate (Tr) increased in blossom and fruit period while decreased during fruiting stage.Elevated CO2 concentration also significantly increased Vc content in the leaves and fruits and the contents of chlorophyll and carbohydrate in the leaves of pepper.Elevated CO2 concentration improved the photosynthetic system and increased the photosynthesis of pepper leaves,and then promoted the accumulation of metabolic substances,which are beneficial to the growth and development of pepper.关键词
辣椒/CO2浓度升高/光合作用/维生素C/产量Key words
pepper/elevated [CO2]/photosynthesis/vitamin C/yield引用本文复制引用
袁蕊,聂磊云,郝兴宇,孙胜,宗毓铮,李萍..大气CO2浓度升高对辣椒光合作用及相关生理特性的影响[J].生态学杂志,2017,36(12):3510-3516,7.基金项目
国家科技支撑计划项目(2013BAD11B03-8)、山西省科技攻关计划项目(20150311006-2)、国家自然科学基金项目(31601212)、山西省煤基重点科技攻关项目(FT201402)和山西农业大学博士引进人才项目资助. （2013BAD11B03-8）
