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dc.contributor.advisorMancino, Charles F.en_US
dc.contributor.authorMoharram, Hisham Nagaty, 1961-
dc.creatorMoharram, Hisham Nagaty, 1961-en_US
dc.date.accessioned2013-04-03T13:07:02Z
dc.date.available2013-04-03T13:07:02Z
dc.date.issued1991en_US
dc.identifier.urihttp://hdl.handle.net/10150/277942
dc.description.abstractMany factors influence the salt tolerance of plants. This study investigated the effects of form and concentration of nitrogen fertilizer on the salt tolerance of 'Tifway' bermudagrass grown under four salinity levels in a nutrient solution. The design was a 4 x 2 x 2 factorial in an RCB design. The four salinity levels were 0 (1.6 to 3.6), 10, 22, and 42 dS m⁻¹. Nitrogen was applied in the NH₄⁺ and NO₃⁻ form and at 52.5 and 210.0 mg N L⁻¹ of nutrient solution. The results indicated that NH₄⁺ improved the salt tolerance of 'Tifway' bermudagrass in terms of aesthetic value (color and leaf firing), osmotic adjustment (free amino acid content), and tolerance of specific ion effects (Na, Ca, and the Na:K ratio). The 210.0 mg N L⁻¹ concentration improved the root:shoot ratio of 'Tifway' bermudagrass and reduced salt ion accumulation in shoots.
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.subjectAgriculture, Agronomy.en_US
dc.subjectBiology, Plant Physiology.en_US
dc.titleEffects of form and concentration of nitrogen fertilizer on the salt tolerance of 'Tifway' bermudagrassen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1345416en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b27028793en_US
refterms.dateFOA2018-08-19T12:29:54Z
html.description.abstractMany factors influence the salt tolerance of plants. This study investigated the effects of form and concentration of nitrogen fertilizer on the salt tolerance of 'Tifway' bermudagrass grown under four salinity levels in a nutrient solution. The design was a 4 x 2 x 2 factorial in an RCB design. The four salinity levels were 0 (1.6 to 3.6), 10, 22, and 42 dS m⁻¹. Nitrogen was applied in the NH₄⁺ and NO₃⁻ form and at 52.5 and 210.0 mg N L⁻¹ of nutrient solution. The results indicated that NH₄⁺ improved the salt tolerance of 'Tifway' bermudagrass in terms of aesthetic value (color and leaf firing), osmotic adjustment (free amino acid content), and tolerance of specific ion effects (Na, Ca, and the Na:K ratio). The 210.0 mg N L⁻¹ concentration improved the root:shoot ratio of 'Tifway' bermudagrass and reduced salt ion accumulation in shoots.


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