摘要
[Objective] The research aimed to compare the photosynthetic rates and growth conditions of four types of Atractylodes Lancea（ Thunb.） DC.. [Method] A. Lancea was divided into four types：the saw-tooth-leaf, the ellipse-leaf, the long-ellipse-leaf as well as the sharp-leaf, according to leaf morphology. The photosynthetic rates of four types of A. Lancea were determined by the portable photosynthetic instrument LI-6400 in natural environment. The parameters such as stem width, stem height, leaf area of single plant of aboveground parts were measured periodically. [Result] The photosynthetic rates of four types of A. Lancea were： the saw-tooth-leaf 20. 2 μmol/（ m^2·s）, the ellipse-leaf 18.96 μmol/（m^2·s）, the long-ellipse-leaf 15.6 μmol/（ m^2·s） and the sharp-leaf 17.6 μmol/（m^2·s）, respectively. The photosynthetic rate of the saw-tooth-leaf was higher than the other three types. The growth rate of the saw-tooth-leaf was the highest in the four types at 0.01 level. [Conclusion] The research provided certain theoretic basis for further research on A. Lancea.
现代研究表明，茅苍术有保肝、抗菌、抗病毒、抑制中枢及促进胃肠道蠕动等作用。笔者对江苏镇江不同叶型茅苍术的光合速率及地上部分各参数进行比较，为研究茅苍术育种问题提供依据。
基金
Supported by the Agriculture High-tech Research Program of Jiangsu Province(BG2006322)
Agriculture Program of Zhenjiang City(NY2006045).~~
