| 1. | Terrestrial plants are classified into three major photosynthetic types , namely , c3 , c4 and crassulacean acid metabolism ( cam ) plants , according to the mechanism of their photosynthetic carbon assimilation . c4 plants have co2 concentrating mechanism and higher photosynthetic efficiency than c3 plants , especially under high light intensity , high temperature , high oxygen partial pressure and drought conditions
本研究利用c _ 3植物、 c _ 4植物、旱稻与稗草等的杂交后代的材料，进行光合速率的测定，进一步分析植株在光能吸收传递、气孔调节、羧化反应等生理特性，研究高光效的生理机制。 |
