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本文报道用红外线CO_2分析仪测定六种龙舌兰科(Agavaceae)植物光合作用强度的数值及其幅度,测定的结果指出:假菠萝麻的光合作用强度较高(4.80毫克CO_2/平方分米/小时),番麻次之(4.54),11648居第三(4.00)。文中六种龙舌兰光合作用强度的幅度约2—5,初步认为它们是CAM类型植物,其光能利用率低于碳三(C_3)植物。文中亦报道了同一品种不同植株,不同叶序的叶片,不同光照和空气流量等内、外部因素对龙舌兰科植物光合作用强度的影响。
In this paper, we measured the photosynthesis intensity and amplitudes of six Agavaceae plants by infrared CO_2 analyzer. The results showed that the photosynthesis intensity of Fake Pineapple was higher (4.80 mg CO_2 / dm 2 / Hour), followed by flax (4.54), third in place of 11,648 (4.00). In this paper, the photosynthetic intensities of the six agave species ranged from about 2-5, suggesting that they are CAM type plants with lower light energy utilization rates than C 3 plants. The article also reported the same species of different plants, leaves of different leaf orders, different light and air flow and other internal and external factors on the Tenebaceae photosynthesis intensity.