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dc.contributor.authorCastro Neto, Manoel Teixeira de,1958-
dc.creatorCastro Neto, Manoel Teixeira de,1958-en_US
dc.date.accessioned2011-11-28T14:13:30Z
dc.date.available2011-11-28T14:13:30Z
dc.date.issued1988en_US
dc.identifier.urihttp://hdl.handle.net/10150/191999
dc.description.abstractFour barley (Hordeum vulgare L) and two wheat (Triticum aestivum L) cultivars were grown with a preplant irrigation plus rainfall at the University of Arizona Marana Agricultural Center to study the relationship of growth and physiological characteristics to yield under limiting moisture condition. Grain yield of barley cultivars were ranked in the order Bold = 4-21-13 > 309-1, but increased yields were not related to early maturation dates or to other reproductive or vegetative characteristic which was examined. Grain removal by birds prevented the determination of wheat yields, but Zaragoza, which is known to perform well with limited water, had a deeper root system and higher water potentials than LIP-40. Laboratory measurements of severe osmotic stress (-0.8, -0.9 and -1.15 MPa) effects on leaf growth and physiology of barley leaves showed stress stopped leaf expansion immediately and led to rapid leaf shrinkage before growth resumed. Growth occurred in the basal 0.5 cm, and growth resumed when water potential of the growing region became -0.19 MPa lower than that of the external solution.
dc.language.isoenen_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.subjectHydrology.
dc.subjectBarley -- Physiology.
dc.subjectWheat -- Physiology.
dc.subjectPlant-water relationships.
dc.subjectPlants -- Effect of drought on.
dc.titlePhysiological studies of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) grown under limiting water conditionsen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.contributor.chairMatsuda, Kaoruen_US
dc.identifier.oclc213331504en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.contributor.committeememberBriggs, R.en_US
dc.contributor.committeememberBartels, P.en_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
dc.description.notehydrology collectionen_US
refterms.dateFOA2018-06-25T04:13:34Z
html.description.abstractFour barley (Hordeum vulgare L) and two wheat (Triticum aestivum L) cultivars were grown with a preplant irrigation plus rainfall at the University of Arizona Marana Agricultural Center to study the relationship of growth and physiological characteristics to yield under limiting moisture condition. Grain yield of barley cultivars were ranked in the order Bold = 4-21-13 > 309-1, but increased yields were not related to early maturation dates or to other reproductive or vegetative characteristic which was examined. Grain removal by birds prevented the determination of wheat yields, but Zaragoza, which is known to perform well with limited water, had a deeper root system and higher water potentials than LIP-40. Laboratory measurements of severe osmotic stress (-0.8, -0.9 and -1.15 MPa) effects on leaf growth and physiology of barley leaves showed stress stopped leaf expansion immediately and led to rapid leaf shrinkage before growth resumed. Growth occurred in the basal 0.5 cm, and growth resumed when water potential of the growing region became -0.19 MPa lower than that of the external solution.


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