Dissertations / Theses on the topic 'Salinity tolerance'
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Elmezoghi, Saleh Mohamed. "Physiology of salinity tolerance in maize." Thesis, University of Liverpool, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433774.
Full textBabagolzadeh, Ali. "Salinity tolerance in seven Trifolium species." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367195.
Full textHossain, Mohammad Rashed. "Salinity tolerance and transcriptomics in rice." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5092/.
Full textSchuch, Ursula K., and Jack J. Kelly. "Salinity Tolerance of Cacti and Succulents." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/216639.
Full textHendawy, Salah El-Sayed el. "Salinity tolerance in Egyptian spring wheat genotypes." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972317627.
Full textKwon, Taek-Ryoun. "Physiological studies of salinity tolerance in Brassica species." Thesis, Coventry University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361653.
Full textBuya, J. K. "The genetics of salinity tolerance in Tilapia species." Thesis, Swansea University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636193.
Full textMøller, Inge Skrumsager. "Na⁺ exclusion and salinity tolerance in Arabidopsis thaliana." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612521.
Full textSchrader, Stephanie EllaJean, and Stephanie EllaJean Schrader. "Salinity Tolerance of Lettuce Cultivars in Controlled Environment." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/624098.
Full textHawks, Austin McCoy. "Salinity Inventory and Tolerance Screening in Utah Agriculture." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/546.
Full textDashti, Sayyed Aliasghar. "Physiological and genetic aspects of salinity tolerance in sorghum." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368871.
Full textForoozanfar, Maryam. "Genetic control of tolerance to salinity in Medicago truncatula." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0035/document.
Full textAmong abiotic stresses salinity is considered as a serious problem affecting plant functions especially growth and yield. In order to study the genetic control of salt stress in the model legume Medicago truncatula, two experiments were performed. The first experiment was conducted to study the effect of salt stress on some morpho-physiological parameters in M. truncatula genotypes and to determine the eventual use of some traits as tolerance criteria. Genotypes including A17, TN1.11, DZA315.16, A20, TN1.12 and F83005.5 are selected through a sequenced lines collection (http://www1.montpellierinra.fr/BRC-MTR/mauguio/mauguio.php) which are originated from different Mediterranean countries. Genotypes were studied under 6 salinity treatments (0, 30, 60, 90,120 and 150 mM NaCl) in a factorial design based on randomized complete blocks with three replications. Analysis of variance show significant differences among genotypes, salinity levels and interaction between genotypes and salt treatments for most of studied traits. “DZA315.16” genotype presents the highest main effect values for morphological traits whereas”TN1.11” has low values. Vertically projected leaf area (LA); show the highest variability through all studied salt concentrations. The best concentration to find differences between parental lines is 90 to 120 mM Nacl. A segregating population of recombinant inbred lines (100 RILs) of M.truncatula derived from a cross between TN1.11 and Jemalong-A17 was used for the second experiment. RILs were developed by single-seed descent until F6 generation at the INP-ENSAT, France. The experiment was undertaken to determine the genetic variability and to identify QTLs controlling several traits related to plant growth and physiology, in the population of recombinant inbred lines (RILs). Analyses of variance showed a large genetic variation and transgressive segregation for the traits studied. The difference between the mean of RILs and the mean of their parents was not significant for all of the traits in both conditions, showing that the RILs used in our experiment are representative of the possible recombinant lines from the cross TN1.11 x A17. A total of 21 QTLs were detected under control and 19 QTLs were identified under 100mM salt stress conditions. The percentage of total phenotypic variance explained by the QTLs ranged from 4.60% to 23.01%. Some of the QTLs were specific for one condition, demonstrating that the genetic control of a traits differed under control and salt stress conditions. Some others are non-specific and control a trait in both conditions. Overlapping QTLs for different traits were also observed. The results provide important information for further functional analysis of salt tolerance in M. truncatula
Yichie, Yoav. "Salinity tolerance of wild rice accessions from northern Australia." Thesis, The University of Sydney, 2020. https://hdl.handle.net/2123/21824.
Full textAloy, i. Lleonart Merce. "Leaf ion concentrations and salt tolerance in barley." Thesis, Bangor University, 1994. https://research.bangor.ac.uk/portal/en/theses/leaf-ion-concentrations-and-salt-tolerance-in-barley(b9c4ca87-24dd-424d-b5f6-7c8f24c3a886).html.
Full textIsraelsen, Karl R. "Herbicide, Salinity, and Flooding Tolerance of Foxtail Barley (Hordeum jubatum L.) and Desirable Pasture Grasses." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/519.
Full textNoori, Seyed Ahmad Sadat. "Salinity tolerance in wheat (Triticum aestivum L.) and its relatives." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367305.
Full textGarthwaite, Alaina Jane. "Physiological traits associated with tolerance to salinity and waterlogging in the genus 'Hordeum' /." University of Western Australia, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0133.
Full textSemikhodskii, Andrei G. "Mapping quantitative traits for salinity responses in wheat (Triticum aestivum L.)." Thesis, University of East Anglia, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302054.
Full textScott, 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.
Full textGillespie, Trudi. "Genetic variation in salt tolerance of four African Acacia species." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327422.
Full textHauer, Gwen. "Salinity Tolerance of Naked Amoebae from Freshwater, Marine, and Hypersaline Environments." NSUWorks, 2003. http://nsuworks.nova.edu/occ_stuetd/118.
Full textWilliams, Mark Donald. "Salinity tolerance of small fishes from the Murray-Darling river system /." Title page, contents and conclusions only, 1987. http://web4.library.adelaide.edu.au/theses/09SB/09sbw725.pdf.
Full textGallagher, Zoë Sydney Wilson. "The development of salinity tolerance in juvenile pink salmon (Oncorhynchus gorbuscha)." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/39076.
Full textHowladar, Saad Mohammed. "Effects of salicylic acid on salinity tolerance of wheat (Triticum aestivum)." Thesis, University of Reading, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553172.
Full textArvin, Javad. "Tissue culture in potatoes and in vitro selection for salinity tolerance." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315388.
Full textRobinson, 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.
Full textJayakody, Ramani Renuka Perera. "Stomatal mechanisms and their contribution to salinity tolerance in Aster tripolium L." Thesis, Lancaster University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240550.
Full textGxaba, Nomagugu. "The effect of exogenous growth regulators on salinity tolerance in Erucastrum strigosum." University of the Western Cape, 2003. http://hdl.handle.net/11394/8268.
Full textRandomized block experiments were conducted to examine the putative amelioratory effects of kinetin or gibberellic acid at concentrations (0, 4, 12.5, 40, and 125 μM) in Erucastrum strigosum plants subjected to a salinity series (0, 100, 200, 300, and 400 mM NaCl) in the greenhouse. When the highest salinity concentration (increased stepwise) was reached, growth effects in relation to water and cation content of the plants were evaluated. Growth and water content were reduced progressively with salinity treatments. Na+ concentration accumulated with salinity treatments to levels that were much higher than that of other cations (K+, Ca2+ and Mg2+) in both organs. However, it is noteworthy that Na+ distribution was more in shoots than in roots. In kinetin treated plants, shoot growth decreased whilst root growth increased with moderate hormonal treatments.
Carregosa, Vanessa Silva. "Tolerance and response of clams in Ria de Aveiro to salinity changes." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13424.
Full textUnlike the concern that has been growing in relation to the impacts of contamination in marine benthic populations, the responses of aquatic organisms to natural alterations, namely changes in salinity, have received little attention. In fact, salinity is one of the dominant environmental factors that most affect marine bivalves, limiting their spatial distribution in the environment. Tide combined with fresh water inputs, from rivers or heavy rainy periods, and extreme dry seasons can dramatically alter the salinity of water, causing alterations in the benthic populations, namely intertidal bivalves. Furthermore, salinity of a given environment will restrict the spatial distribution of the species, which is especially important when assessing the spread of an invasive species into a new environment. In order to understand how native (Venerupis decussata and Venerupis corrugata) and invasive (Venerupis philippinarum) clam species cope with salinity changes, physiological, biochemical and metabolomic patterns were investigated. The results obtained showed that V. decussata and V. philippinarum presented high mortality at low (0 and 7) but tolerate high (35 and 42) salinities. On the other hand, V. corrugata presented high mortality rates both at low (0 and 7) and high salinities (35 and 42). The quantification of Na and K content revealed that, along the salinity gradient, V. decussata was the species with higher ability to maintain the ionic homeostasis. The biochemical parameters also showed that V. decussata was the clam that best cope with salinity changes and V. corrugata was the most sensitive. Furthermore, the results obtained showed that clams under salinity stressful conditions can alter their biochemical mechanisms, such as increasing their antioxidant defences, to cope with the higher oxidative stress resulting from hypo and hypersaline conditions. Among the physiological and biochemical parameters analysed (glycogen, glucose and protein content; lipid peroxidation (LPO) levels, antioxidant enzymes activity; total, reduced and oxidized glutathione), superoxide dismutase (SOD), LPO and glutathione S-transferase (GST) showed to be useful biomarkers to assess salinity impacts in clams. The effects of salinity changes in the metabolic profile of the three species were also studied using 1H Nuclear Magnetic Resonance (NMR) spectroscopy of clam extracts. Multivariate analysis of the NMR spectra enabled metabolite changes to be observed in relation to clams exposure to different salinity concentrations. When exposed to low salinities, energy reserves of clams may be exhausted, increasing the osmotic imbalance, affecting the metabolic performance and increasing the oxidative stress. V. corrugata showed to be the most sensitive clam to salinity changes. The optimal salinity for V. decussata and V. philippinarum was between 21 and 28 and for V. corrugata was salinity 21. This study showed that changes in salinity have different impacts in native and invasive species
As respostas dos organismos aquáticos a alterações naturais, nomeadamente, alterações de salinidade, têm recebido pouca atenção, inversamente à preocupação que tem vindo a crescer em relação aos impactos da contaminação em populações marinhas bentónicas. De facto, a salinidade é um dos factores ambientais dominantes que mais afetam os bivalves marinhos, o que limita a sua distribuição espacial no ecossistema. As marés combinadas com entradas de água doce, de rios ou períodos de chuva longos e estações secas extremas, podem alterar drasticamente a salinidade da água, provocando alterações nas populações de bivalves bentónicos, nomeadamente intertidais. Além disso, a salinidade de um determinado ambiente irá restringir a distribuição espacial das espécies, o que é especialmente importante quando se avalia a propagação de uma espécie invasora num ambiente novo. A fim de entender como espécies nativas (Venerupis decussata e Venerupis corrugata) e invasoras (Venerupis phiippinarum) de molluscos lidam com as mudanças de salinidade, foram investigados parâmetros fisiológicos, bioquímicos e metablómicos. Os resultados obtidos mostraram que V. decussata e V. philippinarum apresentaram elevada mortalidade em salinidades baixas (0 e 7), mas toleram as salinidades mais altas (35 e 42). Por outro lado, V. corrugata apresentou elevadas taxas de mortalidade tanto em salinidades baixas (0 e 7) como em salinidades altas (35 e 42). A quantificação do teor de Na e K, revelou que ao longo do gradiente de salinidade, a V. decussata foi a espécie com maior capacidade de manter a homeostasia iónica. Os parâmetros bioquímicos também mostraram que V. decussata foi a espécie que melhor lidou com as mudanças de salinidade enquanto a V. corrugata foi a mais sensível. Além disso, os resultados obtidos mostraram que as ameijoas, sob condições adversas de salinidade, podem alterar os seus mecanismos bioquímicos, nomeadamente aumentando as suas defesas antioxidantes, para lidar com um maior stress oxidativo resultante das condições de hipo e hipersalinidade. Entre os parâmetros fisiológicos e bioquímicos analisados (glicogénio, glucose, proteinas, níveis de peroxidação lípidica (LPO), atividade de enzimas antioxidantes; glutationa total, reduzida e oxidada), LPO, superoxide dismutase (SOD) e glutathiona S-transferase (GST) mostraram ser biomarcadores úteis para avaliar os impactos de salinidade em bivalves. Os efeitos das alterações de salinidade no perfil metabólico das três espécies foram também estudados através de Ressonância Magnética Nuclear de 1H (RMN). A análise multivariada dos espectros de RMN permitiu a observação de alterações em relação à exposição de ameijoas a diferentes concentrações de salinidade. Quando expostos a baixas salinidades, as reservas energéticas destes organismos podem ser esgotadas, aumentando o desequilíbrio osmótico, afetando o desempenho metabólico e aumentando o stress oxidativo. V. corrugata mostrou ser a amêijoa mais sensível a mudanças de salinidade. O intervalo de salinidades entre 21 e 28 foi o ideal para V. decussata e V. philippinarum e a salinidade 21 foi a ideal para V. corrugata. Este estudo mostrou que as mudanças de salinidade têm impactos diferentes em espécies nativas e invasoras.
Leksungnoen, Nisa. "The Relationship Between Salinity and Drought Tolerance In Turfgrasses and Woody Species." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1196.
Full textRoden, John Warren III. "Determining the Physiological and Behavioral Methods of Salinity Tolerance in Corbicula fluminea." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/87.
Full textHoang, Thi My Linh. "Engineering salinity tolerance in rice by exogenous expression of cell death regulators." Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/72793/1/Thi%20My%20Linh_Hoang_Thesis.pdf.
Full textKemal-Ur-Rahim, K. "The effects of salinity on photosynthesis and other physiological processes in spring wheat varieties." Thesis, Bangor University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380795.
Full textDiédhiou, Calliste Jérémie. "Mechanisms of salt tolerance sodium, chloride and potassium homeostasis in two rice lines with different tolerance to salinity stress /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979864097.
Full textDenny, Geoffrey Carlile. "Evaluation of selected provenances of taxodium distichum for drought, alkalinity and salinity tolerance." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1327.
Full textAl-Alhagdow, Moftah Moh. "Interactions between sodium and potassium in micropropagated potato cultivars differing in salinity tolerance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0002/MQ44113.pdf.
Full textAl-Hagdow, Moftah Moh. "Interactions between sodium and potassium in micropropagated potato cultivars differing in salinity tolerance." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20554.
Full textThe salt resistance of S is associated not only with a superior capacity to accumulate high Na+ in the roots for osmotic adjustment, but also with resistance to Na movement to the shoot.
The effect of [K] on plant growth showed two main characteristics. In non-saline media, increasing [K] enhanced growth of S, while RB showed optimum growth when the normal (20 mM) level was present in the MS medium. In saline media, elevating [K] alleviated the growth reduction of RB at low salinity, and S at both low and high salinity. This ameliorative effect of K may be attributed to the suppression of both Na+ uptake, and Na + translocation in the plant.
Ali, Ghulam Muhammad. "Genetics and physiological basis of salinity tolerance in pearl millet (Pennisetum americanum L.)." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367186.
Full textPace, Leonard. "Habitat Utilization and Salinity Tolerance of the Sandbar Shark, Carcharhinus plumbeus, in Virginia." W&M ScholarWorks, 2006. https://scholarworks.wm.edu/etd/1539617845.
Full textJattan, 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.
Full textCollins, 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.
Full textRobinson, Michael Frederick. "Sodium-induced stomatal closure in the maritime halophyte Aster tripolium (L.)." Thesis, Lancaster University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337555.
Full textFraser, Duncan. "The potential of kikuyu grasses [Cenchrus clandestinus] for turf and pasture production under environmental stress." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21968.
Full textGood, Victoria. "Investigating the Behavioral Response of Lampsilis ovata to Various Salinity Conditions." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/523.
Full textZhang, Yanling. "Development of in vitro bioassays for determination of salinity tolerance in potato (Solanum spp.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0017/NQ44645.pdf.
Full textZhang, Yanling 1955. "Development of in vitro bioassays for determination of salinity tolerance in potato (Solanum spp.)." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35659.
Full textAlhammadi, Mohamed Salman. "Salt Tolerance and Current Status of the Date Palms in the United Arab Emirates." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/195448.
Full textJafari, Mostafa. "The potential for improvement of salinity and drought tolerance in some semi-arid forage grasses." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316911.
Full textFitwi, Biniam Samuel. "Determination of salinity tolerance limits of tilapia, Oreochromis mossambicus, for use in tuna line fishery." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53355.
Full textENGLISH ABSTRACT: Many species of tilapia such as Oreochromis mossambicus are euryhaline, able to adapt to different salinity waters. Their ability to withstand high salinity levels has given rise to the possibility of using tilapia as baitfish for tuna line fishery. The purpose of the study was to determine the survival rate of tilapia O. mossambicus during direct transfer from freshwater to the salinity levels of 0, 15, 20, 22.5, 25, 27.5, 30, 32.5, and 35 ppt. The data was analysed through means of univariate ANOVAand regression analysis. O. mossambicus showed no mortality to all salinity regimes up to 25 ppt. Mortality was observed at 27.5 ppt, with 100% mortality at 35 ppt. LC 50 and LC 90 were found to be 30.5 and 34.2 ppt, respectively. The results indicate that tilapia (0. mossambicus) will survive a direct transfer to salinities up to 25 ppt. acclimation will be required in the event of transfer to salinity levels above 25 ppt, in order to prevent significant levels of mortalities.
AFRIKAANSE OPSOMMING: Meeste van die tilapia spesies soos Oreochremis mossambicus het die vermoë om by water van verskillende soutgehaltes aantepas. Dit is hierdie vermoë om hoë sout vlakke te weerstaan wat die moontlikheid vir gebruik as lewende aas in die tuna langlyn visvangbedryf moontlik maak. Die doel van hierdie studie was om die oorlewingsvlak van tilapia, O. mossambicus te bepaal by die oorplasing van varswater direk na soutwater by vlakke van 0, 15, 20, 22.5, 25, 27.5, 30, 32.5, en 35 dele per duisend. Die data is verwerk deur gebruik te maak van eenvariant ANOVAen regressie analises. O. mossambicus het geen mortaliteite tot gevolg gehad by al die oorplasings van vlakke tot en met 25 dele per duisend sout nie. Mortaliteite is wel gevind vanaf 27.5 dele per duisend, met 100 % mortaliteite by 35 dele per duisend. LC 50 en LC90 was gewees 30.5 en 34.2 dele per duisend onderskeidelik. Die resultate toon aan dat tilapia (0. mossambicus) sal oorleef by direkte oorplasing na soutwater by vlakke van tot en met 25 dele per duisend. Tilapia wat na hoër vlakke as 25 dele per duisend oorgeplaas wil word, sal eers geleidelik moet akklimatiseer om mortaliteite te beperk.
Roden, John. "Determining the physiological and behavioral aspects of salinity tolerance in the Asian clam, Corbicula fluminea." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/honors/443.
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