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Effects of Growth Regulators and Herbicides on Germination of Hydrilla Turions

Published online by Cambridge University Press:  12 June 2017

Kerry K. Steward
Kerry K. Steward*
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Fort Lauderdale, Florida
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Abstract

Turions of Hydrilla verticillata (Casp.) were treated with gibberellic acid (GA), napthaleneacetic acid (NAA), indoleacetic acid (1AA), 2-chloroethane phosphonic acid, 6,7-dihydrodipyrido(1,2,-a:2′, 1′-c)-pyrazinediium salts (diquat), 1,1′dimethyl-4,4′-bipyridinium salts (paraquat), mono-N,N-dimethylcocoamine salt of 7-oxabicyclo (2.2.1)heptane-2,3-dicarboxylic acid (cocoamine salt of endothall), or the dimethyl amine formulation of 2,4-dichlorophenoxyacetic acid (2,4-D). Germination and growth of subterranean turions was enhanced by GA and axillary turions by 1AA and 2,4-D. The herbicides exhibited little phytotoxicity to the propagules.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 3 , July 1969 , pp. 299 - 301
Copyright
Copyright © 1969 Weed Science Society of America 

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