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[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/(m2·s),the ellipse-leaf 18.96 μmol/(m2·s),the long-ellipse-leaf 15.6 μmol/(m2·s)and the sharp-leaf 17.6 μmol/(m2·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.
[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. 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 / (m2 · s), the ellipse-leaf The long-ellipse-leaf 15.6 μmol / (m2 · s) and the sharp-leaf 17.6 μmol / (m2 · s), respectively. The photosynthetic rate of the saw-tooth-leaf was 18.96 μmol / 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 provides certain theoretic basis for further research on A.Lancea.