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The Differential Action of 2,4 –Dichlorophenoxyacetic Acid on the Hypocotyl and Radicle of Germinating Seedlings

dc.contributor.authorTurner, David Langley Arthur
dc.date.accessioned2009-04-07T00:03:56Z
dc.date.accessioned2022-10-20T10:59:04Z
dc.date.available2009-04-07T00:03:56Z
dc.date.available2022-10-20T10:59:04Z
dc.date.copyright1966
dc.date.issued1966
dc.description.abstractStudies with the germination inhibitors 2,4-dichlorophenoxyacetic acid (2,4-D) and 4 amino-3,5,6-trichloropicolinic acid (Tordon) have shown that seedlings, treated with concentrations of these inhibitors which just permit germination, are considerably shortened in length and frequently terminate in dome-like callus growths. The callus-tissue-distortion seemed confined to the radicle, suggesting that the cells of the radicle might be in some way distinct from those of the hypocotyl. Germinating seeds treated with 2,4-D at concentrations ranging from 0.1 to 1000 parts per million show a decreasing percentage of germination corresponding to the rise in 2,4-D concentration. Observations at set time intervals after imbibition reveal not only that there is a similar correlation in the reduction of overall seedling length, but also that the ratio of hypocotyl length to radicle length is altered by increasing 2,4-D concentrations. Such observations suggest that the cells of the radicle might be physiologically distinct from those of the hypocotyl.en_NZ
dc.formatpdfen_NZ
dc.identifier.urihttps://ir.wgtn.ac.nz/handle/123456789/22277
dc.languageen_NZ
dc.language.isoen_NZ
dc.publisherTe Herenga Waka—Victoria University of Wellingtonen_NZ
dc.subjectBotany
dc.titleThe Differential Action of 2,4 –Dichlorophenoxyacetic Acid on the Hypocotyl and Radicle of Germinating Seedlingsen_NZ
dc.typeTexten_NZ
thesis.degree.disciplineBotanyen_NZ
thesis.degree.grantorTe Herenga Waka—Victoria University of Wellingtonen_NZ
thesis.degree.levelMastersen_NZ
thesis.degree.nameBachelor of Scienceen_NZ
vuwschema.type.vuwAwarded Research Masters Thesisen_NZ

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