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Dissertations / Theses on the topic 'Salt tolerance in plants'

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Published: 4 June 2021

Last updated: 16 February 2022

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1

Ibrahim, Kadhim Mohammad. "Production of variation in salt tolerance in ornamental plants." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305403.

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2

Johnson, D. W., S. E. Smith, and A. K. Dobrenz. "Improved Regrowth Salt Tolerance in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/201009.

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3

Collins, R. P. "The role of calcium and potassium in salinity tolerance in Brassica rapa L. cv. RCBr seed." Thesis, Coventry University, 2012. http://curve.coventry.ac.uk/open/items/e0d653ff-7d6b-4827-9467-dc8bcb6ff621/1.

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The possibility of manipulating calcium (Ca2+) and potassium (K+) levels in seeds of Brassica rapa by altering parent plant nutrition and investigating the potential for increased salinity tolerance during germination, given that considerable amounts of literature imply that greater amounts of available exogenous Ca2+ and K+ can ameliorate the effects of salinity on both whole plant growth and germination, was evaluated. The investigation consisted of four growth trials. Two preliminary growth trials suggested that seed ion manipulation was possible without affecting the overall growth and vig

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4

Saleh, Livia [Verfasser]. "Chloride transport and salt tolerance mechanisms in plants / Livia Saleh." Kiel : Universitätsbibliothek Kiel, 2011. http://d-nb.info/1036243052/34.

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5

McKimmie, Tim, and Albert Dobrenz. "Salt Tolerance During Seedling Establishment in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203790.

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Deposition of salts from irrigation water is an increasing concern for Arizona farmers and agronomists. Selection for salt tolerance during the seedling stage has been undertaken over the past three years. Yield tests were conducted in greenhouses and a significant increase in dry matter production was shown in the selected material.

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6

Dobrenz, Albert, David Robinson, and Steve Smith. "Improving the Germination Salt Tolerance of Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200482.

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The development of alfalfa that can germinate at extremely high NaC1 levels will improve early emergence and establishment of this important forage crop in saline soils. We have identified plants in the eighth cycle of selection that germinated at -3.0 MPa (30,000 ppm). Seed from these plants displayed a 40% better germination at -2.1 MPa (21,000 ppm) than the previous cycle. Germination at higher salt concentrations were not different between the two germplasm sources.

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7

McKimmie, Tim, and Albert Dobrenz. "Alfalfa Salt Tolerance from Germination to Establishment." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200538.

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8

McKimmie, Timothy Irving 1948. "CHARACTERIZATION OF SALT TOLERANCE IN ALFALFA (MEDICAGO SATIVA L.)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276348.

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9

Andrade, Maria Isabel. "PHYSIOLOGY OF SALT TOLERANCE IN GUAR, CYAMOPSIS TETRAGONOLOBA (L.) TAUB." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275416.

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10

Lenis, Julian Mario. "Physiological traits underlying differences in salt tolerance among glycine species." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5646.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 13, 2009) Includes bibliographical references.

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11

McKimmie, T., and A. K. Dobrenz. "Variability in Salt Tolerance within a Population of Alflafa." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/201029.

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Genetic variability must exist for a selection program to be successful. Alfalfa seedlings were selected for salt tolerance after six weeks growth at 7500 ppm NaCl. The selection criteria considered plant height and survival. Variability for each factor within a population of alfalfa was shown. Both criteria were important and facilitated selection from those parents which contributed most to the salt tolerance of the population.

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12

McKimmie, T., A. K. Dobrenz, and P. L. Malchow. "Progress in the Development of Salt Tolerance in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/201010.

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Increasing crop salt tolerance can mean higher yields on irrigated farmland and salt -affected soils. Three cycles of selection were made for growth of alfalfa seedlings under 7500 ppm NaCl. Comparison of parent and selected populations was made for yield and germination under saline conditions. Yield of the last cycle was significantly improved. Germination of the last two cycles was higher than that of the parent and cycle 1.

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13

Attumi, Al-Arbe M. "A study of salt tolerance in Arabidopsis thaliana and Hordeum vulgare." Connect to e-thesis, 2007. http://theses.gla.ac.uk/114/.

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Thesis (Ph.D.) - University of Glasgow, 2007.<br>Ph.D. thesis submitted to the Division of Biochemistry and Molecular Biology, Biomedical and Life Sciences (IBLS), University of Glasgow, 2007. Includes bibliographical references. Print version also available.

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14

Robinson, David Lowell 1955. "RECURRENT SELECTION FOR GERMINATION SALT TOLERANCE IN ALFALFA (SALINITY, FORAGES, BREEDING)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/277015.

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15

Poteet, David, David Robinson, Steve Smith, and Albert Dobrenz. "Genetic Gains and Stability for Germination Salt Tolerance in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203789.

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Improving the germination salt tolerance of alfalfa will help this crop endure both increasingly saline irrigation water and salt build -up in the soil. Seven previous cycles of selection for salt tolerance at germination plus the parental line, Mesa-Sirsa, were evaluated for percentage germination under various levels of NaCI solutions. Germination improved linearly from the earliest to the latest cycle of selection. Germination salt tolerance can be improved through recurrent selection techniques.

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16

Selcuk, Feyza. "Evaluation Of Salt Tolerance In Sto Transformed Arabidopsis Thaliana And Nicotiana Tabacum Plants." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/3/12604751/index.pdf.

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Salinity is one of the limiting factors of crop development. Together with causing water loss from plant tissues, salinity also leads to ion toxicity. Under salt stress, increase in Ca+2 concentration in cytosol can decrease the deleterious effects of stress. The binding of Ca+2 to calmodulin initiates a signaling cascade involving the activation of certain transcription factors like STO and STZ. This signal transduction pathway regulates transport of proteins that control net Na+ influx across the plasma membrane and compartmentalization into the vacuole. Previously Arabidopsis STO was ident

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17

Asfaw, Kinfemichael Geressu [Verfasser], and P. [Akademischer Betreuer] Nick. "Chemical Engineering of Plants for Salt Tolerance / Kinfemichael Geressu Asfaw ; Betreuer: P. Nick." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/1212512502/34.

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18

Selçuk, Feyza. "Evaluation of salt tolerance in sto transformed arabidopsis thaliana and nicotiana tabacum plants." Ankara : METU, 2004. http://etd.lib.metu.edu.tr/upload/12604751/index.pdf.

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19

Menzi, Pateka. "Gallic acid modulates salt stress tolerance in soybean plants by regulating antioxidant capacity." University of the Western Cape, 2017. http://hdl.handle.net/11394/5905.

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Magister Scientiae - MSc (Biotechnology)<br>Soybean [Glycine max L (mer)] is one of the top commodity crops in the world including South Africa (de Beer and Prinsloo, 2013). These small yet important podded legumes are a great source of protein and are used in many forms.

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20

Sessoms, Holly Nicol. "Water use potential and salt tolerance of riparian species in saline-sodic environments." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/sessoms/SessomsH0805.pdf.

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21

Jattan, Sarabjit Singh. "Studies on growth and salinity tolerance in Acacia nilotica Dalbergia sissoo and Prosopis juliflora." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315722.

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22

Ayala, Chairez Felix. "Physiology of salt tolerance in Salicornia bigelovii Torr." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186621.

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Growth of most crop plants (glycophytes) is reduced in saline environments. A few plant species (euhalophytes) not only tolerate, but require salt, and grow optimally in salinities between 100 and 200 mM NaCl. The halophyte Salicornia bigelovii Torr. shows optimal growth in 200 mM NaCl and reduced growth in low saline conditions. In spite of years of research, mechanisms that confer salt tolerance to some plants and sensitivity to others are poorly understood. This research was undertaken to obtain physiological information in an attempt to determine why S. bigelovii requires salt to reach max

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23

LEDBETTER, CRAIG ALLEN. "HERITABILITY OF SALT TOLERANCE DURING GERMINATION AND EMERGENCE IN SHORT STAPLE COTTON (GOSSYPIUM HIRSUTUM L.)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183961.

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Soil salinity is a serious problem for farmers in irrigated agriculture. Soil salts cause reduced stands and yields because of toxic ion and osmotic problems for surviving seedlings. The tolerance to sodium chloride during germination and emergence was studied in three commercial cultivars of short staple cotton (Gossypium hirsutum L.). It is this stage of the life cycle that cotton is most sensitive to salts in the soil solution. The objectives of this study were to increase the tolerance to sodium chloride during germination and emergence and to determine the narrow sense heritability of thi

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24

Dobrenz, A. K., D. C. Poteet, R. B. Miller, and S. E. Smith. "Carbohydrates in Germination Salt Tolerant and Non-Salt Tolerant Alfalfa Seed." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/201015.

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Alfalfa which is extremely salt tolerant during germination has been developed by researchers at the University of Arizona Carbohydrates were analyzed in the original parental gemiplasm 'Mesa- Sirsa' and Cycle₅Syn₂ and Cycle₈Syn₂ seed to determine why this seed could germinate in extremely saline conditions. Raffinose and sucrose were both significantly higher in the salt -tolerant germplasm compared to the parental germplasm; however, the magnitude increase of these free sugars was not sufficient to explain the increased ability of the seed to absorb water in a stress environment. The galacto

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25

Chaudhary, M. T. "Salt tolerance and toxicity in NaCl-selected and nonselected cells and regenerated plants of Medicago media." Thesis, Swansea University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636234.

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Batch suspension cultures of Lucerne (<I>Medicago media </I>cv Rambler), initiated directly from surface-sterilized leaflet explants, were used to produce cell lines tolerant to 200, 250 and 300 mol m<SUP>-3</SUP> NaCl by successive subculture into media of progressively higher salinity. The degree of salt tolerance of the cell lines was highly dependent on the concentration of Ca<SUP>++</SUP> in the growth medium. The plants of <I>M media</I> regenerated from salt-adapted cell suspension culture were significantly more tolerant to NaCl than the unselected Rambler plants, another cultivar of <

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26

Morita, Tateo 1958. "Effect of inbreeding on germination salt tolerance in alfalfa." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276644.

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The performance of an alfalfa (Medicago sativa L.) population has been improved by recurrent selection for germination salt tolerance. However, recurrent selection may lead to increased inbreeding. Since alfalfa is subject to severe inbreeding depression, accumulation of inbreeding during the selection process may negatively affect performance. This experiment was designed to determine the effects of inbreeding on germination performance in alfalfa under saline and non-saline conditions. The germination performance of seed having three different levels of inbreeding as examined. No adverse eff

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27

Badenhorst, Petrus Cornelius. "Identification of molecular markers for Thinopyrum distichum chromosomes contributing to salt tolerance." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51794.

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Thesis (MSc.)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: The detrimental effect of soil salinity on crop production is a growmg problem worldwide (Tanji, 1990b). The degree to which plants can tolerate high concentrations of salt in their rooting medium is under genetic control with different genetic and physiological mechanisms contributing to salt tolerance at different developmental stages (Epstein & Rains, 1987). Only limited variation exists for salt tolerance in the cultivated cereals. This has prompted attempts to select tolerant progeny following hybridisation of cul

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28

Do, Thi-Cam-Van [Verfasser]. "Compost and residues from biogas plant as potting substrates for salt-tolerant and salt-sensitive plants / Thi Cam Van Do." Bonn : Universitäts- und Landesbibliothek Bonn, 2013. http://d-nb.info/104305667X/34.

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29

Elphick, Carmen Heather. "Na'+ transport and Ca'2'+ signalling in higher plant salt tolerance." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341845.

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30

Goertz, Steven Harvey. "Salt tolerance of tepary (Phaseolus acutifolius Gray) and navy (P. vulgaris L.) beans at several developmental stages." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184646.

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Two accessions of tepary (phaseolus acutifolius Gray var. latifolius) and navy (P. vulgaris L. 'Fleetwood') beans were studied for salt tolerance at several• developmental stages. Genotypes were germinated at 0.0 through -2.5 MPa NaCl at 25°C and 35°C for nine days. Tepary accessions had higher germination percentages and rates than navy for ≤ - 2.0 MPa at 250C and ≤ - 1.5 MPa at 35°C. Fresh weights of root plus hypocotyl decreased severely with the first increment of NaCl (-0.5 MPa) for all genotypes. Fresh weight of navy was reduced more at 35°C than at 25°C. Genotypes were stressed in vermi

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31

Liu, Jiping. "Characterization and molecular cloning of sos3: A gene important for salt tolerance and potassium nutrition in higher plants." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/283921.

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The major goal of my dissertation research was to use genetic approaches to identify and characterize the components (genes) that are important for salt tolerance in Arabidopsis. Identification and characterization of such genes might provide insights into why these genes are important, and how these genes function in salt response and salt tolerance in higher plants. During my dissertation research, the sos3-1 mutant was isolated and characterized. The mutant plants are hypersensitive to Na⁺ and unable to grow with low K⁺. Increased Ca²⁺ levels can partially suppress the growth defect of the

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32

Miranda, Casey R. "Effects of Recycled Water On Landscape Plants." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/354.

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ABSTRACT EFFECTS OF RECYCLED WATER ON LANDSCAPE PLANTS Casey Ray Miranda Recycled water is water that has been previously used, has suffered a loss of quality, and has been properly treated for redistribution (Wu et al. 2001). The use of recycled water as an alternative to fresh water in the landscape can have positive and negative effects. Experimentation on 40 different plant species during a 32 week period (2 phases of 16 weeks), was conducted to analyze the effects of recycled water irrigation on the appearance of landscape plants. Each species of plant was planted into 10 individual n

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33

Alemayehu, Makonnen. "Germination and emergence salt tolerance of sorghum (Sorghum bicolor L.) as influenced by seed quality and generations." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184933.

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Artificially aged and non-aged seeds of 22 grain sorghum (Sorghum bicolor L.) F₁ hybrids and their F₂ and F₃ generations were evaluated for germination salt tolerance. Six of the hybrids, along with their F₂ and F₃ generations, were tested for emergence salt tolerance. Effects of seed production environments on germination salt tolerance were also studied using F₂ generations of 12 sorghum hybrids produced under full-season irrigation, limited irrigation, and double-cropping conditions. Germination tests were conducted in a growth chamber, on trays, while the emergence test was conducted in a

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34

Scott, A. M. "Salinity and the growth of Crithmum maritimum and Lavatera arborea." Thesis, Lancaster University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371066.

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35

Smith, Steve, and Albert Dobrenz. "Improved Alt Tolerance in Alfalfa: Past Success and Prospects for the Future." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200537.

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36

Visser, Hendrik Johannes. "Molekulere merking van Thinopyrum distichum chromosome betrokke by soutverdraagsaamheid en die karakterisering van trigeneriese (Triticum/Secale/Thinopyrum) sekondêre hibriede." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2570.

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Thesis (MSc (Genetics))--Stellenbosch University, 2008.<br>Thinopyrum distichum (2n = 4x = 28; J1dJ1dJ2dJ2d) is a hardy, salt-tolerant maritime wheatgrass indigenous to southern Africa. In order to transfer its salt-tolerance to cultivated cereals, the Thinopyrum chromosomes involved must first be characterized with molecular markers. Thinopyrum distichum chromosomes 2J1d, 3J1d, 4J1d and 5J1d have previously been found to be major determinants of salt-tolerance. A genotype panel consisting of two triticale/Th. distichum allopolyploids, two Th. distichum/2*triticale doubled-haploids, eight tri

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37

Aysin, Ferhunde. "Transformation Of Nicotiana Tabacum Plants With Na+/h+ Antiporter (atnhx1) Gene Isolated From Arabidopsis Thaliana For Evaluation Of Salt Tolerance." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12608910/index.pdf.

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Large, membrane-bound vacuoles of plant cells are suitable organelles for the compartmentation of ions. These vacuoles contain Na+/H+ antiporters for movement of Na+ within the organelle in exchange for H+. They provide an efficient mechanism to prevent the occurance of detrimental outcomes of Na+ accumulation in the cytosol. Identification of AtNHX1 gene that confers resistance to salinity by expressing a Na+/H+ antiport pump facilitates the understanding of the salt stress tolerance mechanisms of plants. The aim of the present study was to isolate and clone the Arabidopsis thaliana AtNHX1

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38

McKimmie, T., and A. K. Dobrenz. "Developing Salt Tolerant Alfalfa Beyond the Germination Stage." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200494.

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39

Sagers, Joseph. "Salt Tolerance of Forage Kochia, Gardner's Saltbush, and Halogeton: Studies in Hydroponic Culture." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5130.

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Halogeton (Halogeton glomeratus) is a halophytic, invasive species that displaces Gardner’s saltbush (Atriplex gardneri) on saline rangelands. Forage kochia (Bassia prostrata) is a potential species to rehabilitate these ecosystems. This study compared the salinity tolerance of these species and tall wheatgrass (Thinopyrum ponticum) and alfalfa (Medicago sativa). Plants were evaluated for 28 days in hydroponics where they were maintained at 0, 150, 200, 300, 400, 600, and 800 mM NaCl. Shoot growth and ion accumulation were determined. Alfalfa and tall wheatgrass were severely affected by salt

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40

Gadeh, H. M. "The effect of compost and priming on the salt tolerance of bread wheat (Triticum aestivum L. cv. S-24 and cv. Slambo) during germination and early seedling establishment." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/f0bd31e5-d16c-4435-993a-ab1ec64d7bc3/1.

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Soil salinity and the arid climate in Libya are major constraints in agriculture and predominantly in foodstuff production which are limiting wheat production and yield. The effect of pre-sowing seed treatments with 50 mM of KCl, NaCl, CaCl2, and distilled water as hydropriming on germination and early seedling growth in two wheat (Triticum aestivum L.) cultivars S-24 (tolerant) and Slambo (untested before) under 0, 100, 200 and 300 mM NaCl concentrations was examined. CaCl2 was the only priming treatment that significantly improved the germination percentage, germination rate, and mean germin

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41

Tsang, Amy H. Y. "The role of mycorrhizal fungi in salt tolerance of five sand dune plant species." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0019/MQ28677.pdf.

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42

Reffruschinni, K., D. Poteet, A. Dobrenz, and J. Cox. "Salinity X Temperature Interactions on Germination Salt Tolerant Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/200833.

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Continued irrigation with saline water on Arizona's already salty farm lands will increase the need for crops that are able to maintain yields under stress. We investigated responses of gemùnation salt- tolerant alfalfa (Medicago sativa L.) to salt and temperature stress interactions in comparison to Mesa - Sirsa. Significant interactions were found for the populations, salts and temperatures and their effects on percent germination. The germination salt - tolerant cycles proved to be more cold and heat tolerant under salt stress then Mesa - Sirsa.

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43

Li-Yong, Zhang. "In vitro selection of salt tolerant cell lines and plants from Amaranthus species." Thesis, Coventry University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282734.

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44

Moharram, Hisham Nagaty 1961. "Effects of form and concentration of nitrogen fertilizer on the salt tolerance of 'Tifway' bermudagrass." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277942.

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Many 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 firin

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45

Sindhu, K. "In vitro selection and whole-plant studies of salt and drought tolerance in Elettaria cardamomum." Thesis, Liverpool John Moores University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337854.

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46

Smith, Steve, Debra Conta, and Albert Dobrenz. "Performance of Germination Salt Tolerant Alfalfa on a Non-Saline Site." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203791.

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47

Slail, Nabeel Younis 1963. "INFLUENCE OF SODIUM-CHLORIDE ON TRANSPIRATION AND PLANT GROWTH OF TWO TOMATO CULTIVARS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276516.

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Seedlings were grown at five salinity levels in Hoagland's solution for 4 weeks. Transpiration, leaf diffusive resistance, leaf temperature and plant growth of the tomato (Lycopersicon esculentum Mill.) cultivars 'VF 145B' and 'VF 10' were examined at different levels of NaCl ranging from 0 to -12 bars. Salinity-reduced transpiration increased leaf diffusive resistance and increased leaf temperature for both cultivars. Shoot length, root length, shoot and root weight and leaf area were all lower for the two cultivars at increasing salinity levels. However, the two cultivars responded different

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48

Yan-Xiu, Zhao. "The isolation, culture and genetic manipulation of protoplasts from salt and drought tolerant leguminous plants." Thesis, Coventry University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332788.

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49

Vernon, Daniel Marc. "Molecular biology of salt tolerance in the facultative halophyte Mesembryanthemum crystallinum: Identification and regulation of stress-responsive mRNAs." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185921.

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As sessile organisms, plants are subject to numerous environmental insults. Of these, salinity is one of the most widespread and important in terms of limiting plant distribution and productivity. Molecular studies have established that plants challenged by high salinity respond by increasing expression of specific genes. A functional role for the products of such genes in stress tolerance has not been established, however, and little is known about the biochemical mechanisms that allow plants to tolerate osmotic stress. Mesembryanthemum crystallinum is a facultative halophyte capable of adjus

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50

Al-Bahrany, Abdulaziz Maatook 1960. "Physiological and biochemical responses of short staple cotton (Gossypium hirsutum L.) to salt stress." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184634.

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Three cotton (Gossypium hirsutum L.) germplasms (DP62, 84027, and 84033) were used to investigate the physiology of salt tolerance. Lines 84027 and 84033 were developed from the parental line DP62 and showed superior vigor under varying NaCl conditions (0.5 to 2.0 M) during germination and emergence. Proline levels increased in the leaves of all germplasms in response to increasing salinity. Varietal differences in proline levels did not reflect their variation in salt tolerance. Several physiological characteristics were also evaluated under non-saline condition in the greenhouse. There were

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