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- W938766076 abstract "于分蘖、拔节和抽穗3个时期在空气CO2浓度(380 μmol·mol-1)下测定稻田中稗草叶片的净光合速率(Pn),发现在开放式CO2浓度增高(FACE)条件下生长的稗草叶片后2个时期的Pn显著低于普通空气中生长的对照,比对照下降约20%,说明FACE条件下稗草叶片光合作用对高CO2浓度发生了明显的适应.同时,叶片的气孔导度(Gs)和胞间 CO2浓度(Ci)的下降更为明显.与对照相比,叶片可溶性蛋白含量明显降低,拔节期只有对照的62.4%;高CO2浓度下生长的稗草叶片Rubisco 含量也降低,分蘖期和拔节期分别为对照的87%和84%,但其差异未达到显著水平.可以认为,长期生长在高CO2浓度下的C4植物稗草叶片光合作用的适应是叶片气孔部分关闭和可溶性蛋白含量下降的结果." @default.
- W938766076 created "2016-06-24" @default.
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- W938766076 date "2002-10-15" @default.
- W938766076 modified "2023-09-24" @default.
- W938766076 title "水稻田稗草叶片光合作用对开放式空气CO2浓度增高（FACE）的适应" @default.
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