Eichhornia crassipes (Mart) Solms in wastewater treatment: Reducing low-temperature stress

Persistent Link:
http://hdl.handle.net/10150/291651
Title:
Eichhornia crassipes (Mart) Solms in wastewater treatment: Reducing low-temperature stress
Author:
Lawler, Jennifer Rae Noelle, 1962-
Issue Date:
1989
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Studies were carried out from July 1988 to August 1989 to assess the growth and winter survival of water hyacinth, Eichhornia crassipes (Mart.) Solms, in treatment of secondary domestic wastewater in Tucson, Arizona. Percent of surviving overwintered plants for the following frost protection treatments from November 1988 to March 1989 was: 25 (control), 48 (plastic tarps), 70 (sprinklers), 34 (fog) and 76 (greenhouse). Both control plants and protected plants had longer roots at the effluent end of the ponds than the influent ends during winter months. Greenhouse-protected plants had greater root and entire plant lengths, and greater fresh and dry weights. Dry weight per unit area (kg m⁻²) was higher for greenhouse plants though all protected plants showed decline in dry weight per unit area with temperatures below 10 C. Qualitative observations indicated that protected plants showed less chlorosis and necrosis from low temperatures than control plants, however, plants in all frost protected treatments experienced low temperature stress. Aphids were seen in some of the ponds throughout the study and contributed to severe lamina and petiole damage.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Water hyacinth.; Water -- Purification -- Biological treatment -- Arizona -- Tucson.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Plant Science
Degree Grantor:
University of Arizona
Advisor:
Palzkill, David A.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEichhornia crassipes (Mart) Solms in wastewater treatment: Reducing low-temperature stressen_US
dc.creatorLawler, Jennifer Rae Noelle, 1962-en_US
dc.contributor.authorLawler, Jennifer Rae Noelle, 1962-en_US
dc.date.issued1989en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractStudies were carried out from July 1988 to August 1989 to assess the growth and winter survival of water hyacinth, Eichhornia crassipes (Mart.) Solms, in treatment of secondary domestic wastewater in Tucson, Arizona. Percent of surviving overwintered plants for the following frost protection treatments from November 1988 to March 1989 was: 25 (control), 48 (plastic tarps), 70 (sprinklers), 34 (fog) and 76 (greenhouse). Both control plants and protected plants had longer roots at the effluent end of the ponds than the influent ends during winter months. Greenhouse-protected plants had greater root and entire plant lengths, and greater fresh and dry weights. Dry weight per unit area (kg m⁻²) was higher for greenhouse plants though all protected plants showed decline in dry weight per unit area with temperatures below 10 C. Qualitative observations indicated that protected plants showed less chlorosis and necrosis from low temperatures than control plants, however, plants in all frost protected treatments experienced low temperature stress. Aphids were seen in some of the ponds throughout the study and contributed to severe lamina and petiole damage.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectWater hyacinth.en_US
dc.subjectWater -- Purification -- Biological treatment -- Arizona -- Tucson.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant Scienceen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorPalzkill, David A.en_US
dc.identifier.proquest1339212en_US
dc.identifier.oclc23671059en_US
dc.identifier.bibrecord.b17656412en_US
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