大气CO2与温度升高对北方冬小麦旗叶光合特性、碳氮代谢及产量的影响
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宗毓铮,张函青,李萍,张东升,林文,薛建福,高志强,郝兴宇
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Effects of Elevated Atmospheric CO2 Concentration and Temperature on Photosynthetic Characteristics, Carbon and Nitrogen Metabolism in Flag Leaves and Yield of Winter Wheat in North China
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ZONG YuZheng,ZHANG HanQing,LI Ping,ZHANG DongSheng,LIN Wen,XUE JianFu,GAO ZhiQiang,HAO XingYu
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表7 CO2浓度和气温升高对小麦灌浆期叶片碳氮代谢物的影响
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Table 7 Effects of elevated CO2 and increased temperature on the carbon and nitrogen metabolites of wheat at filling stage
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| 处理
Treatment | 可溶性总糖含量
Soluble sugar
content (mg·g-1 FW) | 淀粉含量
Starch content
(mg·g-1 FW) | 纤维素含量
Cellulose content
(mg·g-1 FW) | 可溶性蛋白
Soluble protein
(mg·g-1 FW) | 硝酸还原酶活性
Nitrate reductase activity (μg NO2-·g-1 FW·h-1) | | CK | 2.38±0.40d | 0.13±0.02b | 4.39±1.23a | 15.47±2.83b | 4.14±0.74a | | EC | 7.01±0.59a | 0.23±0.09a | 4.91±0.90a | 21.15±1.18a | 1.70±0.02b | | ET | 4.36±0.30c | 0.13±0.01b | 2.79±0.13b | 10.80±1.63c | 1.84±0.24b | | ECT | 5.99±0.72b | 0.28±0.03a | 3.16±0.99b | 8.25±1.15d | 1.98±0.34b | | P-value | PT | 0.15 | 0.47 | 0.02 | 0.00 | 0.00 | | PCO2 | 0.00 | 0.00 | 0.51 | 0.22 | 0.00 | | PT×CO2 | 0.00 | 0.41 | 0.91 | 0.01 | 0.00 |
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