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借助于ＯＴＣ－１型开顶式气室，进行了自然状态下及ＣＯ_２浓度倍增时棉花生长发育及产量形成过程的模拟诊断试验，结果表明：ＣＯ_２浓度倍增对棉花生育进程、生物量和产量等均有明显的正效应。
With the aid of OTC-1 type open-top gas chamber, the simulated diagnosis experiment of cotton growth and yield formation under natural condition and doubling of CO 2 concentration was carried out. The results showed that the doubling CO 2 concentration affected the growth process, biomass and yield of cotton Have obvious positive effect.