4种类型茅苍术生长的比较

摘要

[Objective]The research aimed to compare the photosynthetic rates and growth conditions of four types of Atractytodes Lancea(Thtmb.) DC..[Method]A.Lancea was divided into four types:the saw-tooth-leaf,the ellipse-leaf,the long-ellipse-lesf 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 The growth rate of the saw-tooth-lesf was the highest in the four types at 0.01 level.[Conclusion]The research provided certain theoretic basis for further research on A.Lancea.