Effect of Herbicides on the Growth ofChlorellaandBacillususing the Paper Disc Method
- 1 September 1973
- journal article
- research article
- Published by Cambridge University Press (CUP) in Weed Science
- Vol. 21 (5) , 449-451
- https://doi.org/10.1017/s0043174500027478
Abstract
Twenty herbicides were tested for activity in a paper disc agar bioassay. The growth of Chlorella pyrenoidosa Chick was inhibited by dinoseb (2-sec-butyl-4,6-dinitrophenol), diquat [6,7-dihydropyrido(1,2-a:2′,1′-c)pyrazinediium ion], paraquat (1,1′-dimetnyl-4,4′-bipyridinium ion), 3′,4′-dichloro-2-methylvaleranilide, propachlor (2-chloro-N-isopropylacetanilide), and linuron [3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea]. The growth of Bacillus subtilis Cohn was inhibited by dinoseb, diquat, paraquat, and 3′,4′-dichloro-2-methylvaleranilide. This assay using C. pyrenoidosa or B. subtilis offers a convenient means for the testing of herbicides.Keywords
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