dc.contributor.author |
Turner, David Langley Arthur |
|
dc.date.accessioned |
2009-04-07T00:03:56Z |
|
dc.date.accessioned |
2022-10-20T10:59:04Z |
|
dc.date.available |
2009-04-07T00:03:56Z |
|
dc.date.available |
2022-10-20T10:59:04Z |
|
dc.date.copyright |
1966 |
|
dc.date.issued |
1966 |
|
dc.identifier.uri |
https://ir.wgtn.ac.nz/handle/123456789/22277 |
|
dc.description.abstract |
Studies 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.format |
pdf |
en_NZ |
dc.language |
en_NZ |
|
dc.language.iso |
en_NZ |
|
dc.publisher |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
dc.title |
The Differential Action of 2,4 –Dichlorophenoxyacetic Acid on the Hypocotyl and Radicle of Germinating Seedlings |
en_NZ |
dc.type |
Text |
en_NZ |
vuwschema.type.vuw |
Awarded Research Masters Thesis |
en_NZ |
thesis.degree.discipline |
Botany |
en_NZ |
thesis.degree.grantor |
Te Herenga Waka—Victoria University of Wellington |
en_NZ |
thesis.degree.level |
Masters |
en_NZ |