Physiology of Oil Seeds
- 1 April 1971
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 47 (4), 488-492
- https://doi.org/10.1104/pp.47.4.488
Abstract
Germination, ethylene production, and carbon dioxide production by dormant Virginia-type peanuts were determined during treatments with plant growth regulators. Kinetin, benzylaminopurine, and 2-chloroethylphosphonic acid induced extensive germination above the water controls. Benzylaminopurine and 2-chloroethylphosphonic acid increased the germination of the more dormant basal seeds to a larger extent above the controls than the less dormant apical seeds. Coumarin induced a slight stimulation of germination while abscisic acid, 2,4-dichlorophenoxyacetic acid, and succinic acid 2,2-dimethylhydrazide did not stimulate germination above the controls. In addition to stimulating germination, the cytokinins also stimulated ethylene production by the seeds. In the case of benzylaminopurine, where the more dormant basal seeds were stimulated to germinate above the control to a larger extent than the less dormant apical seeds, correspondingly more ethylene production was induced in the basal seeds. However, the opposite was true of kinetin for both germination and ethylene production. When germination was extensively stimulated by the cytokinins, maximal ethylene and carbon dioxide evolution occurred at 24 and 72 hours, respectively. Abscisic acid inhibited ethylene production and germinaton of the seeds while carbon dioxide evolution was comparatively high. The crucial physiological event for germination of dormant peanut seeds was enhancement of ethylene production by the seeds.Keywords
This publication has 8 references indexed in Scilit:
- Involvement of Ethylene in Responses of Etiolated Bean Hypocotyl Hook to CoumarinPlant Physiology, 1970
- Physiology of Oil SeedsPlant Physiology, 1970
- Dormancy Regulation in Subterranean Clover Seeds by EthylenePlant Physiology, 1969
- Control of Apple Ripening by Succinic Acid 2,2-Dimethyl Hydrazide, 2-Chloroethyltrimethylammonium Chloride, and EthylenePlant Physiology, 1969
- Ethylene, Seed Germination, and EpinastyPlant Physiology, 1969
- Ethylene as a Component of the Emanations From Germinating Peanut Seeds and Its Effect on Dormant Virginia-type SeedsPlant Physiology, 1969
- Effects of Kinetin, IAA, and Gibberellin on Ethylene Production, and Their Interactions in Growth of SeedlingsPlant Physiology, 1968
- Auxin Stimulation of Ethylene EvolutionPlant Physiology, 1966