Enhancement of Gibberellic Acid Sensitivity in Corn (Zea mays) by Fluridone and R-40244
- 1 January 1980
- journal article
- research article
- Published by Cambridge University Press (CUP) in Weed Science
- Vol. 28 (1) , 11-12
- https://doi.org/10.1017/s0043174500027673
Abstract
Fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4 (1H)-pyridinone} and R-4-0244 [1-(m-trifluoromethylphenyl)-3-chloro-4-chloromethyl-2-pyrrolidone], herbicides that block carotenoid synthesis, increase the sensitivity of corn (Zea mays L. ‘Merit’) to exogenously-applied gibberellic acid (GA). Increase in shoot length due to the application of GA to imbibing corn seeds was considerably enhanced by simultaneously applying either fluridone or R-40244. Fluridone was more active in this respect than R-40244.Keywords
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