• 关键词：CO₂  玉米  产量  品质

• 基金项目：

• 王春乙
• 中国气象科学研究院,北京 100081

• 白月明
• 中国气象科学研究院,北京 100081

• 温民
• 中国气象科学研究院,北京 100081

• 摘要：利用OTC-1型开顶式气室对玉米进行了不同CO₂浓度处理的试验研究,结果表明,CO₂浓度增加,对玉米发育期和株高几乎没有影响,生物产量和籽粒产量呈上升趋势,籽粒成分变化较为复杂；CO₂浓度增加,对玉米籽粒粗蛋白、粗纤维和总糖含量的影响呈负效应,对淀粉的影响呈正效应。

• Abstract：The effects of increase in CO₂ concentration on corn were studied using OTC-1 open top chamber. The results showed that increase in CO₂ concentration have no effects on corn development stage and height, but increased the biomass and grain yield. With CO₂ concentration increased, negative effects on corn seed rough protein, rough fiber and contents of total carbohydrate were observed but the starch of corn was positively effected.

• Key words：CO₂ concentration  corn  yield

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