The Cassava Physilogy Program., Centro Internacional de Agricultura Tropical (CIAT)., Apartado Aereo, 6713, Cali, Colombia, SA.
Photosynth Res. 1984 Sep;5(3):243-50. doi: 10.1007/BF00030025.
Maximum photosynthetic CO2 exchange rates (Pn) of single attached leaves were determined for several cassava cultivars selected from different habitats and grown in pots outdoors at CIAT, Colombia, S.A. Pn rates were in a narrow range of 22 to 26 μmol CO2 m(-2)s(-1) for all cultivars tested when measured at high photon flux density, normal air, optimum temperature and with low leaf-air vapor pressure differences. For all tested cultivars (9 cvs.), there was a broad optimum temperature for Pn between 25 to 35°C. At temperatures below and above this range Pn declined in all cultivars with Pn rates reaching 80% of maximum at 20 and 40°C. Pn temperature coefficient (Q10) from 15-25°C was 1.6±0.2 across cultivars. No consistent relation existed between Pn, optimum temperature, and the original habitat.
最大光合 CO2 交换率（Pn）的单附着叶片的几种木薯品种从不同的栖息地选择和在盆中生长在哥伦比亚 CIAT，S.A.的户外。当在高光通量密度、正常空气、最佳温度和低叶-空气蒸汽压差下测量时，所有测试的品种的 Pn 率都在 22 到 26 μmol CO2 m(-2)s(-1)的狭窄范围内。对于所有测试的品种（9 个品种），Pn 的最适温度范围很宽，在 25 到 35°C 之间。在这个范围以下和以上的温度下，所有品种的 Pn 都下降了，在 20 和 40°C 时，Pn 率达到最大的 80%。15-25°C 之间的 Pn 温度系数（Q10）在品种间为 1.6±0.2。Pn、最适温度和原始栖息地之间不存在一致的关系。
