摘要
为探究大气CO_(2)浓度升高背景下施肥对小麦光合性能及根系的影响,设置4种处理,采用盆栽控制试验。结果表明:与CK相比,施肥、CO_(2)倍增及二者交互作用提高了小麦叶片净光合速率、水分利用效率和胞间CO_(2)浓度,而降低了小麦叶片蒸腾速率和气孔导度;除MF处理降低小麦叶片叶绿素含量、EC处理降低小麦叶片氮平衡外,其余处理均显著提高了小麦叶片氮平衡和叶绿素含量。施肥、CO_(2)倍增及二者交互作用降低了小麦叶片花青素含量,其中ECMF处理小麦叶片花青素含量最低,显著降低了约58.97%(P<0.01);施肥、CO_(2)倍增及二者交互作用对小麦叶片最大荧光、初始荧光、最大光化学效率、根系总根长、总根表面积与总根体积均有促进作用。
To explore the effects of fertilization on the photosynthetic performance and root system of wheat under the background of increased atmospheric CO_(2) concentration,four treatments were set up and pot control experiments were adopted.That compared with CK,fertilization,CO_(2) doubling and their interaction increase the net photosynthetic rate,water use efficiency and intercellular CO_(2) concentration of wheat leaves,while reducing the transpiration rate and stomatal conductance of wheat leaves.Except for MF treatment which reduced the chlorophyll content and EC treatment which reduced the nitrogen balance,the remaining treatments significantly improved the nitrogen balance and chlorophyll content of wheat.Fertilization,CO_(2) doubling and their interaction reduced the anthocyanin content.Among them,the anthocyanin content in the ECMF treatment was the lowest,significantly reducing by approximately 58.97%.Fertilization,CO_(2) doubling and their interaction all promote the maximum fluorescence,initial fluorescence,maximum photochemical efficiency,total root length,total root surface area and total root volume of wheat leaves.
作者
崔一梦
王清涛
Cui Yimeng;Wang Qingtao(Hebei University of Engineering,Handan 056038,Hebei,China)
出处
《农业技术与装备》
2025年第6期201-204,共4页
Agricultural Technology & Equipment
关键词
小麦
CO_(2)倍增
有机无机肥混施
光合作用
叶绿素
根系
wheat
the concentration of CO_(2)increases
mixed application of organic and inorganic fertilizers
photosynthesis
chlorophyll
root system
作者简介
崔一梦(1999-),女,河北石家庄人,硕士研究生在读,研究方向为农艺与种业;通信作者:王清涛,博士,E-mail:wangqt13@lzu.edu.cn。
