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3年生白桦同时接受3种外源糖溶液(蔗糖、果糖、葡萄糖)和3种高浓度CO2(700、1400、2100μLu001fL-1CO2)处理。处理1个月后,测定了叶片的总糖、蔗糖、果糖和蛋白质含量。结果表明:在700μLu001fL-1和1400μLu001fL-1 CO2下,外源糖溶液增加了叶片的可溶性糖和蛋白质含量,其中外源蔗糖的效果最好;外源糖溶液与2100μLu001fL-1CO2结合,会抑制叶片积累总糖和蛋白质;在700μLu001fL-1和1400μLu001fL-1CO2下,喷施葡萄糖、果糖的叶片在蛋白质含量上没有明显差别;;同700、1400μLu001fL-1CO2相比,除喷施果糖植株外,2100μLu001fL-1CO2明显增加了叶片的总糖、蔗糖、果糖和蛋白质含量;;在喷施同种外源糖溶液的情况下,叶片的糖含量与CO2浓度呈正相关性。图6参7。
The 3-year-old birch also received 3 exogenous sugar solutions (sucrose, fructose, glucose) and 3 high concentrations of CO2 (700,1400,2100 μL u001fL-1CO2). After one month of treatment, the total sugar, sucrose, fructose and protein content of the leaves were determined. The results showed that exogenous sugar solution increased soluble sugar and protein content of leaves at 700μL u001fL-1 and 1400μL u001fL-1 CO2, of which exogenous sucrose was the best; exogenous sugar solution and 2100μL u001fL- 1CO2, inhibited the accumulation of total sugar and protein in leaves; sprayed with glucose at 700μL u001fL-1 and 1400μL u001fL-1CO2, there was no significant difference in the protein content of the fructose leaves ;; with 700,1400μL u001fL-1CO2 Compared with spraying fructose plant, 2100μL u001fL-1CO2 significantly increased the content of total sugar, sucrose, fructose and protein in leaves. In the same exogenous sugar solution sprayed, the leaf sugar content and CO2 Concentration was positively correlated. Figure 6 Reference 7.