1, Acorus calamus Linn; Endophyte; antimicrobial activity.

2, The highest and the lowest yield rate of Acorus calamus rhizome metabolize products were observed in methanol soakage extract (9.23%) and ultrasonic extract (2.55%), respectively.

3, After 7 months of operation , all the Acorus calamus was replaced by Alternanthera philoxeroides.

4, Acorus calamus was more efficient for accumulating N and P, while Iris tectorum had more N and P per plant as a result of its much higher biomass.

5, From November to December, Acorus calamus was still in growth.

6, The results showed that Acorus calamus grew normally in any of the 5 eutrophic waters.

7, OBJECTIVE:To analyze and compare the chemical constituents of volatile oil of rhizome and root in Acorus calamus L.

8, Study on Chemical Constituents of Volatile Oil in Rhizome and Root of Acorus calamus L.

9, Results showed that the sequence of inhibition effect of three plants was Acorus calamus ,[http:///acorus calamus.html] orris and canna.

10, METHODS:The steam distillation was used to prepare the volatile oil from the rhizome and root of Acorus calamus L .

11, The results indicated the COD, TN and TP could be removed from the floating bed system of Acorus calamus L and the mixed floating bed system of Acorus calamus L and Yperus slternifolius, respectively.

12, An experimental study using artificial roughness selected to simulate Acorus calamus L, and four densities, has been conducted to investigate its influence on the flow resistance and structure.

13, In order to isolate and screen endophytic fungi with inhibitory activity from Acorus calamus L.