Material Information
- Title:
- ALLELOPATHIC EFFECTS OF CRUDE AND PURIFIED COMMON RAGWEED (Ambrosia artemisiifolia L.) ROOT EXTRACTS ON THE INVASIVE BRAZILIAN PEPPER (Schinus terebinthifolia Raddi) AND SEVERAL FLORIDA NATIVE PLANT SPECIES
- Physical Description:
- Book
- Language:
- English
- Creator:
- Binninger, Sean
- Publisher:
- New College of Florida
- Place of Publication:
- Sarasota, Fla.
- Publication Date:
- 2014
Thesis/Dissertation Information
- Degree:
- Bachelor's ( B.A.)
- Degree Grantor:
- New College of Florida
- Degree Divisions:
- Natural Sciences
- Area of Concentration:
- Biology
Subjects
- Genre:
- bibliography ( marcgt )
theses ( marcgt )
government publication (state, provincial, territorial, dependent) ( marcgt )
born-digital ( sobekcm )
Electronic Thesis or Dissertation
Notes
- Abstract:
- Ambrosia artemisiifolia (common ragweed) is a widespread native throughout North America and is invasive in Europe and Asia. Therefore, it has the potential to affect many habitats and plant communities. Its allelopathic effects were studied to help determine its environmental impacts.
Previous experimental protocol showed thiarubrine A from root extracts negatively affects plant growth. Therefore, a crude root extract was applied to Schinus terebinthifolia (Brazilian pepper), Aeschynomene americana (shyleaf), Solidago stricta (wand goldenrod), Callicarpa americana (American beautyberry), and Symphyotrichum dumosum (rice button aster) seeds. A purified root extract, obtained by liquid-liquid extraction and column chromatography, was applied to Brazilian pepper and shyleaf seeds. The effects of herbicide treatments (bromacil, diuron, and hexazinone) were compared to those of the crude extract. Germination rate, seedling elongation, and seedling biomass were examined to determine treatment effects.Methanol and the purified extract caused significantly lower germination rates than water or the crude extract with shyleaf and significantly reduced Brazilian pepper and shyleaf seedling elongation compared to water. Methanol showed greater negative effects on growth than expected, while the crude extract had less of a negative effect on germination and biomass than expected. Bromacil and hexazinone were much more growth-inhibiting than the crude extract.
- Statement of Responsibility:
- by Sean Binninger
- Thesis:
- Thesis (B.A.) -- New College of Florida, 2014
- General Note:
- RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
- Bibliography:
- Includes bibliographical references.
- General Note:
- This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
- General Note:
- Faculty Sponsor: McCord, Elzie
Record Information
- Source Institution:
- New College of Florida
- Holding Location:
- New College of Florida
- Rights Management:
- Applicable rights reserved.
- Resource Identifier:
- Classification:
- S.T. 2014 B5
- System ID:
- AA00024717:00001
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