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dc.contributor.authorByrd, Abigail Denniston, 1953-
dc.creatorByrd, Abigail Denniston, 1953-en_US
dc.date.accessioned2013-03-28T10:05:14Z
dc.date.available2013-03-28T10:05:14Z
dc.date.issued1987en_US
dc.identifier.urihttp://hdl.handle.net/10150/276451
dc.description.abstractCuphea (Lythraceae) is a genus of interest as a possible domestic source of medium-chain fatty acids. The genus is in the preliminary phases of domestication. An unsuccessful attempt was made to produce interspecific hybrids between species in several sections of the genus and with varying chromosome numbers. An analysis was made of the time of day and size bud to collect for cytological study of meiotic phases. Chromosome numbers were reported for C. ignea and C. pinetorum. Arm-pairing data were collected for 4 species and one interspecific hybrid. Metaphase I bivalent size was measured for 4 species. A genetic study was done in C. procumbens. Hypotheses regarding the inheritance of flower color, viscid plant hairs, seed coat spots, seed coat hairs and seed dormancy are proposed. A PEG osmoticum pre-germination treatment was found ineffective in breaking dormancy.
dc.language.isoen_USen_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.subjectCuphea -- Genetics.en_US
dc.subjectPlant hybridization.en_US
dc.titleGENETIC AND CYTOGENETIC INVESTIGATIONS IN THE GENUS CUPHEAen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.identifier.oclc17567574en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1331391en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b16335934en_US
refterms.dateFOA2018-08-27T07:50:42Z
html.description.abstractCuphea (Lythraceae) is a genus of interest as a possible domestic source of medium-chain fatty acids. The genus is in the preliminary phases of domestication. An unsuccessful attempt was made to produce interspecific hybrids between species in several sections of the genus and with varying chromosome numbers. An analysis was made of the time of day and size bud to collect for cytological study of meiotic phases. Chromosome numbers were reported for C. ignea and C. pinetorum. Arm-pairing data were collected for 4 species and one interspecific hybrid. Metaphase I bivalent size was measured for 4 species. A genetic study was done in C. procumbens. Hypotheses regarding the inheritance of flower color, viscid plant hairs, seed coat spots, seed coat hairs and seed dormancy are proposed. A PEG osmoticum pre-germination treatment was found ineffective in breaking dormancy.


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