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通过 3种 CO2 浓度 ( 70 0× 10 -6、 50 0× 10 -6、 350× 10 -6)模拟实验表明 :CO2 浓度增加使小麦籽粒的蛋白质、赖氨酸、脂肪含量增高 ,淀粉含量下降 ,品质得到提高 ;玉米则相反 ,其蛋白质、赖氨酸、脂肪含量随 CO2 浓度升高而减少 ,淀粉含量略有增高 ,品质有所下降。 70 0× 10 -6的小麦籽粒粗蛋白、赖氨酸、粗脂肪、粗淀粉比 350× 10 -6分别增长 3.0 %、 3.0 %、 8.5%和 - 2 .3% ,玉米增长- 7.5%、 - 10 .5%、 - 3.7%和 0 .6% ;50 0× 10 -6小麦分别增长 4 .4 %、 9.1%、 11.3%和 - 1.7% ;玉米增长 - 5.0 %、 - 5.3%、 - 4 .0 %和 2 .6%
The simulation experiments of three CO2 concentrations (70 0 × 10 -6, 50 0 × 10 -6, 350 × 10 -6) showed that the increase of CO2 concentration increased the content of protein, lysine and fat in wheat grain and the starch content decreased , While the quality of corn was improved. On the contrary, the content of protein, lysine and fat decreased with the increase of CO2 concentration, the content of starch increased slightly and the quality declined. The crude protein, lysine, crude fat and crude starch of 3.0 ×, 3.0%, 8.5% and -2.3% of wheat and 7.5% of corn increased from 350 × 10 -6 to 70 × 10 -6, -10.5%, -3.7% and 0.6% respectively; 50 × 10 -6 wheat increased by 4.4%, 9.1%, 11.3% and -1.7% respectively; 4 .0% and 2.6%