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Dissertations / Theses on the topic 'MITIGATION OF SALT STRESS'

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Published: 11 September 2023

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1

SINGH, SHATRUPA. "AUGMENTATIVE ROLE OF PLANT GROWTH PROMOTING BACTERIA (PGPB) IN MODULATING RESPONSES AGAINST MITIGATION OF SALT STRESS IN TRIGONELLA FOENUM-GRAECUM." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18463.

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An experiment was conducted to evaluate the role of plant growth promoting bacteria (PGPB) in mitigating salinity stress in Trigonella foenum graecum. Plants were subjected to three different levels of salinity viz 0, 70 and 150 mM NaCl (electrical conductivity value 0.01, 7.67 and 15.50 mS cm-1 , respectively) using a completely randomized design experiment. PGPB showed positive effects in mitigation of salinity stress in fenugreek plants and elevated various growth responses viz. shoot and root length, shoot and root dry weight, leaf area and number of leaves as compared to uninocul
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2

Hamzaoui, Soufiane. "Heat stress responses in dairy goats and effects of some nutritional strategies for mitigation." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/285552.

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En la presente tesis se han llevado a cabo 4 experimentos con cabras lecheras bajo condiciones de estrés por calor (HS) para medir la respuesta bajo las condiciones de estrés (Exp. 1 y 2) y para evaluar el aceite de soja y el propilenglicol como suplementos alimenticios (Exp. 3 y 4). En los Exp. 1 y 2, 8 cabras lecheras de raza Murciano-Granadina, a final (Exp. 1) y a mitad (Exp. 2) de lactación fueron expuestas a diferentes condiciones ambientales, utilizando jaulas metabólicas en una cámara climática. El diseño experimental fue de efecto cruzado (2 periodos de 28-35 d y 4 cabras por grupo) y
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3

Mian, Afaq Ahmad. "Improving salt stress resistance in cereals." Thesis, University of York, 2010. http://etheses.whiterose.ac.uk/1191/.

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Salinity is a complex environmental stress that affects growth and production of agriculturally important crops world-wide. Tolerance to salt stress is variable for different plants and involves integration of various physiological and biochemical mechanisms. This thesis investigates the role in salt tolerance of various transporter genes in important agricultural cereal crops, i.e. rice and barley. Transgenic lines overexpressing OsTPKa, OsTPKb and OsAKT1 were generated using Agrobacterium mediated rice transformation, while for OsAKT1 a loss of function mutant was also isolated. Transgenic a
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4

Crowley, Cara Leilani. "Bile salt induced stress response pathways." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/289231.

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Our lab has shown that the bile salt found in the highest concentration in human fecal water, sodium deoxycholate, induces apoptosis in several cell types including Jurkat cells as well as human colonic epithelial cells. We have also found that cells within the normal appearing flat mucosa of patients with a history of colon cancer are relatively resistant to apoptosis induced by NaDOC. The current studies test the hypothesis that sodium deoxycholate induces multiple stress response pathway s that protect against apoptosis. I have tested this hypothesis by developing and analyzing cell lines t
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5

Unruh, Ellen M. "Heat stress detection and mitigation in feedlot cattle." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/38179.

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Master of Science in Biomedical Sciences<br>Department of Clinical Sciences<br>Robert L. Larson<br>Bradley J. White<br>Feedlot cattle frequently endure high environmental temperature-humidity index conditions in the summer months within cattle feeding regions of North America. Heat stress develops when the total heat gain (combined effects of environmental and metabolic factors) exceeds an animal’s heat loss capabilities. The objective of my research was evaluating heat mitigation strategies and developing a practical method to identify animals that are of greatest risk of heat stress; thus im
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6

Verbruggen, Nathalie. "Proline accumulation after salt-stress in arabidopsis thaliana." Doctoral thesis, Universite Libre de Bruxelles, 1992. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212895.

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7

Moser, Chase. "Experimental evolution of «Chlamydomonas reinhardtii » under salt stress." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=94916.

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Abstract The environment is now changing much faster than in recent geological time, causing increasing population extinctions. Experiments have shown that extinction can be avoided by adaptation through natural selection leading to evolutionary rescue. I first determined the response of Chlamydomonas to stressful environments by growing populations over a range of salinity. The population growth is halved at 5 g/L salt (NaCl), and 8 g/L is lethal. In this experiment, the genetic correlation between environments increases with environmental similarity. I then manipulated the genotypic divers
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8

Shafiq-ur-Rehman. "Physiological responses of acacia seeds to salt stress." Thesis, Coventry University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363856.

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9

Crane, Andrew John. "The spectral detection of salt stress in cotton." Thesis, University of Portsmouth, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292358.

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10

Stergiopoulos, Konstantinos. "Functional genomics of salt stress in 'Drosophila melanogaster'." Thesis, University of Glasgow, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433614.

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11

Fancy, Nurun Nahar. "Role of S-nitrosylation in plant salt stress." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/29509.

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Salinity stress is one of the main challenges for crop growth and production. The estimated loss of crop yield due to salinity stress is up to 20% worldwide each year. Plants have evolved an array of mechanisms to defend themselves against salinity stress. A key aspect of plant responses to salinity stress is the engagement of a nitrosative burst that results in nitric oxide (NO) accumulation. A major mechanism for the transfer of NO bioactivity is S-nitrosylation which is a modification of the reactive thiol group of a rare but highly active cysteine residue within a protein through the addit
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12

Pessarakli, Mohammed, K. B. Marcum, and David M. Kopec. "Growth Responses of Desert Saltgrass under Salt Stress." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/216374.

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Saltgrass (Distichlis spicata), clonal accession WA-12, collected from Wilcox, Arizona was studied in a greenhouse to evaluate its growth responses in terms of shoot and root lengths, shoot fresh weight, and shoot and root dry weights under control and salt (sodium chloride) stress conditions. Plants were grown under control (no salt) and three levels of salt stress (100, 200, and 400mM NaCl equivalent to 6250, 12500, and 25,000 g Lᴮ¹ sodium chloride, respectively), using Hoagland solution in a hydroponics system. Plant shoots (clippings) were harvested weekly, oven dried at 60 °C, and dry wei
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13

Morales, Arturo Jason. "Physiological Assessment of Chenopodium quinoa to Salt Stress." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2205.

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The physiological responses to salt stress were measured in Chenopodium quinoa. In a greenhouse experiment, salt water was applied to the quinoa varieties, Chipaya and KU-2, and to the model halophyte Thellungiella halophila to assess their relative responses to salt stress. Height and weight data from a seven-week time course demonstrated that both cultivars exhibited greater tolerance to salt than T. halophila. In a growth chamber experiment, three quinoa cultivars, Chipaya, Ollague, and CICA 17 were hydroponically grown and physiological responses were measured with four salt treatments. Ti
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14

Drake, Arly Marie. "EFFECT OF PLANT GROWTH REGULATORS ON CREEPING BENTGRASS GROWTH AND HEALTH DURING HEAT, SALT, AND COMBINED HEAT AND SALT STRESS." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546450732510932.

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15

Lima, Leonardo Warzea. "Selenium and sulfur : mitigation in plant stresses /." Jaboticabal, 2016. http://hdl.handle.net/11449/138897.

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Orientador: Priscila Lupino Gratão<br>Coorientador: André Rodrigues dos Reis<br>Banca: Tiago Tezotto<br>Banca: Tiago Santana Balbuena<br>Abstract: Plants do not have specific defense mechanisms to counteract the diverse range of abiotic stresses and pollutants into the environment, and its survival depends on the flexibility and adaptability of its own natural defense mechanisms. Furthermore, the maintenance of cellular homeostasis depends on several interlinked and complex mechanisms, while the cellular defense system does not follow a specific pattern of action and may differ due to various
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Lima, Leonardo Warzea [UNESP]. "Selenium and sulfur: mitigation in plant stresses." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138897.

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Submitted by LEONARDO WARZEA LIMA null (leowlima@yahoo.com.br) on 2016-05-27T12:41:13Z No. of bitstreams: 1 Dissertação. Revised.pdf: 1863234 bytes, checksum: 639af080fd660e2648e06a1ee397d972 (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-05-30T20:13:44Z (GMT) No. of bitstreams: 1 lima_lw_me_jabo.pdf: 1863234 bytes, checksum: 639af080fd660e2648e06a1ee397d972 (MD5)<br>Made available in DSpace on 2016-05-30T20:13:44Z (GMT). No. of bitstreams: 1 lima_lw_me_jabo.pdf: 1863234 bytes, checksum: 639af080fd660e2648e06a1ee397d972 (MD5) Previo
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17

Krell, Andreas. "Salt stress tolerance in the psychrophilic diatom Fragilariopsis cylindrus." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980889235.

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18

OROZCO, SERGIO OROZCO. "WELLBORE STABILITY IN SALT ZONES: USING STRESS TRANSFER TECHNIQUES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=22966@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>BOLSA NOTA 10<br>A estabilidade de poços através de zonas de sal é um aspecto relevante em ambientes de perfuração offshore no Brasil. O fluxo convencional no planejamento de um poço de petróleo não reconhece a natureza complexa do estado de tensões in-situ em torno destes corpos de sal. Portanto, é necessária uma avaliação fiável das tensões in-situ considerando tanto a escala de ca
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19

Roosens, Nancy. "Proline biosynthesis related to salt stress in higher plants." Doctoral thesis, Universite Libre de Bruxelles, 1999. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211926.

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20

Brígido, Clarisse Cordeiro. "Tolerance of chickpea mesorhizobia to acid and salt stress." Doctoral thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/14546.

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The main objectives of this thesis were to evaluate the tolerance of a collection of native Portuguese chickpea rhizobia to abiotic stresses, namely acidity and salinity, and to investigate the molecular bases of acidity and salinity tolerance. Additionally, the evaluation of the symbiotic performance of ACC deaminasetransformed strains under salinity was performed. The involvement of the chaperone ClpB in the response to abiotic stresses and in the symbiosis with chickpea was investigated by gene deletion in a Mesorhizobium strain. Chickpea rhizobia were assigned to several Mesorhizobium spec
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21

Kang, Ren. "Appliance-level demand side management for power network stress mitigation." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:1daf3825-1836-4bdb-89cb-763ecccca010.

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Power networks are under increasing pressure to maintain operation within permissible voltage and current limits with higher penetrations of renewable energy. This thesis aims to develop and evaluate a practical and economical way to control key domestic appliances to alleviate stress caused by high level of renewable energy penetration. The first objective in this thesis is to develop a network stress identification technique that does not rely on communication infrastructure. Traditionally, there is an emphasis on using centralized control strategies for demand side management (DSM) involvin
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22

Wibowo, Anjar Tri. "Epigenetic response and adaptation to salt stress in Arabidopsis thaliana." Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/78172/.

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High soil salinity is a major environmental stress that adversely affects crop production throughout the world. It is now estimated that half of the world’s cropland is affected by salt stress. To cope with various environmental stresses, plants are able to spatially and temporally regulate gene expression through changes in DNA methylation and chromatin conformation, known as epigenetic modifications. Recent studies indicated that epigenetic modifications induced by environmental stress can be inherited over several generations, despite a genomewide epigenetic resetting of epigenetic imprints
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23

Kader, Md Abdul. "Salt stress in rice : adaptive mechanisms for cytosolic sodium homeostasis /." Ultuna : Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200657.pdf.

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24

Dadkhah, Ali Reza. "Ecophysiology of sugar beet (Beta vulgaris L.) under salt stress." Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246614.

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25

Lauer, Nathan T. "Physiological and Biochemical Responses of Bald Cypress to Salt Stress." UNF Digital Commons, 2013. http://digitalcommons.unf.edu/etd/454.

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Bald Cypress (Taxodium distichum (L.) Rich.) is native to freshwater wetlands of Florida. The vitality of cypress within coastal freshwater wetlands is threatened by saltwater intrusion. Biomarkers to detect sub-lethal salinity stress were developed using a controlled greenhouse study. Cypress saplings maintained at elevated salinities of 4 and 8‰ exhibited a decrease in maximum quantum yield (MQY) and an increase in non-photochemical quenching (NPQ). Cypress leaves exhibited an increase in Na+, H2O2, and free proline content compared to plants maintained in freshwater. These biomarkers were u
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26

Pessarakli, Mohammad, David M. Kopec, and Jeff J. Gilbert. "Growth Responses of Selected Warm-Season Turfgrasses under Salt Stress." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/216638.

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Use of low quality/saline water for turf irrigation, especially in regions experiencing water shortage is increasing. This imposes more salt stress on turfgrasses which are already under stress in these regions. Therefore, there is a great need for salt tolerant turfgrasses to survive under such stressful conditions. This study was conducted in a greenhouse, using hydroponics system, to compare growth responses of three warm-season turfgrasses, bermudagrass (Cynodon dactylon L.), cv. Tifway 419, seashore paspalum (Paspalum vaginatum Swartz), cv. Sea Isle 2000, and saltgrass (Distichlis spicata
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27

Pessarakli, Mohammed, David M. Kopec, and Jeff J. Gilbert. "Growth Responses of Selected Warm-Season Turfgrasses under Salt Stress." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009. http://hdl.handle.net/10150/216660.

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Use of low quality/saline water for turf irrigation, especially in regions experiencing water shortage is increasing. This imposes more salt stress on turfgrasses which are already under stress in these regions. Therefore, there is a great need for salt tolerant turfgrasses to survive under such stressful conditions. This study was conducted in a greenhouse, using hydroponics system, to compare growth responses of three warmseason turfgrasses, bermudagrass (Cynodon dactylon L.), cv. Tifway 419, seashore paspalum (Paspalum vaginatum Swartz), cv. Sea Isle 2000, and saltgrass (Distichlis spicata
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28

Wu, Xiao. "Design of a Tritium Mitigation and Control System for Fluoride-salt-cooled High-temperature Reactor Systems." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1452249907.

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29

Peng, Licheng. "Mitigation of Oxygen Stress and Contamination-free Cultivation in Microalga Cultures." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34189.

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Microalgae are promising candidates for biofuel production, CO2 biomitigation, and production of a variety of value-added products. However, high production costs and large energy consumption have been a major concern hindering the commercialization of microalgal products and processes. In addition, biological contamination and oxygen stress are two of the major contributors to these challenges. The objective of this project was twofold: 1) developing a novel strategy for control of biological contamination to enable non-sterile cultivation of microalgae such as N. oleoabundans, and 2) develop
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30

Tsiantis, Miltiades S. "Regulation of V-ATPase gene expression by ionic stress in higher plants." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337540.

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31

Wei, Wenxue. "Physiological and molecular mechanisms of salt tolerance in barley (Hordeum vulgare L.)." Thesis, University of Wolverhampton, 2002. http://hdl.handle.net/2436/93525.

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32

Kalifa, Ali. "Salt stress, and phosphorus absorption by potato plants cv. 'Russet Burbank'." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29727.pdf.

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33

Ferreira, Thalita Montoril. "Biochemical and physiological responses of sorghum plants submitted to salt stress." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17086.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>The plants are frequently exposed to environmental stresses, which cause imbalances in physiological and biochemical metabolism. This work aimed to study the physiological and biochemical changes of plant forage sorghum (Sorghum bicolor) genotype CSF18, depending on the time of salt stress. The seeds were sown in vermiculite moistened with distilled water, in a greenhouse conditions, and after seven days, the seedlings were transferred to trays with Hoagland solution diluted 1:2. After seven days, treatment was established stress s
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34

Serra, Sara <1979&gt. "Salt stress responses in pear and quince: physiological and molecular aspects." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1620/1/Serra_Sara_Tesi_.pdf.

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The productivity of agricultural crops is seriously limited by salinity. This problem is rapidly increasing, particularly in irrigated lands. Like almost all the fruit tree species, Pyrus communis is generally considered a salt sensitive species, but only little information is available on its behavior under saline conditions. Previous studies, carried out in the Department of Fruit Tree and Woody Plant Science (University of Bologna), focused their attention on pear and quince salt stress responses to understand which rootstock would be the most suitable for pear in order to tolerate a salt
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Serra, Sara <1979&gt. "Salt stress responses in pear and quince: physiological and molecular aspects." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1620/.

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The productivity of agricultural crops is seriously limited by salinity. This problem is rapidly increasing, particularly in irrigated lands. Like almost all the fruit tree species, Pyrus communis is generally considered a salt sensitive species, but only little information is available on its behavior under saline conditions. Previous studies, carried out in the Department of Fruit Tree and Woody Plant Science (University of Bologna), focused their attention on pear and quince salt stress responses to understand which rootstock would be the most suitable for pear in order to tolerate a salt
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Attumi, Al-Arbe. "Effects of salt stress on phosphorus and sodium absorptions by soybean plants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0001/MQ44119.pdf.

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Elias, Demetra. "Characterization of ES147, a salt stress regulated protein kinase from Lophopyrum elongatum." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ59271.pdf.

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38

Abdelkader, Amal Fadl. "Salt stress in wheat (Triticum aestivum) and its impact on plastid development /." Göteborg : Göteborg University, 2007. http://www.loc.gov/catdir/toc/fy0714/2007423862.html.

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Attumi, Al-Arbe. "Effect of salt stress on phosphorus and sodium absorptions by soybean plants." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20242.

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The radiotracer methodology was combined with the Hoagland solution culture of growing soybean in a greenhouse to investigate the absorptions of phosphorus (P), calcium (Ca), and sodium (Na) as a function of salinity. Salt stress was varied by using zero to 120 mM NaCl. The research was initiated because of a need to increase soybean production in the saline soils of the semi-arid regions of the world. Although P absorption increased with time at each concentration of NaCl, increasing its concentrations ([NaCl]) to 120 mM reduced P uptake considerably. The addition of inorganic P (Pi) to the s
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Alm, David Michael. "Comparison and interaction of heat and salt stress in cultured tobacco cells." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/445616.

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Cultured tobacco cells (Nicotiana tabacum L., cv Wisconsin-38) were subjected to temporary sub-lethal heat and salt shock treatments to determine the effects of these treatments on various physiological parameters after subsequent lethal heat or salt stresses. Tobacco cells developed a tolerance to a non-permissive temperature stress (54C for 14 min) when pretreated with heat shock of 38C for 2h but not when pretreated at 42C for 2h. Cells pretreated at 38 (2h) exhibited less than 30% normal growth when the 54C stress came immediately after the 38C treatment. Tolerance to the 54C stress develo
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Chevrot, Thierry. "Pressure effects on the hot-salt stress-corrosion cracking of titanium alloys." Thesis, Cranfield University, 1994. http://dspace.lib.cranfield.ac.uk/handle/1826/7745.

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Benefiting from good specific mechanical properties, exceptional oxidation resistance, and high temperature capability, Titanium Alloys are used in Gas Turbine Engines, especially in the early stages of the compressor. However they are subject to stresscorrosion cracking in the laboratory when subjected to stresses and contaminated with salts at elevated temperatures. The lack of in-service failures of titanium components due to Hot-Salt Stress-Corrosion Cracking (HSSCC) is not yet understood. The parameters influencing the HSSCC of titanium alloys (temperature, load, stress and temperature cy
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42

Seebaruth, Khemnandanee. "A microstructural study of hot salt stress corrosion cracking in titanium alloys." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308326.

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Story, Geraint-Wyn. "Development of a non-invasive screen for salt stress in Arabidopsis thaliana." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612986.

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Foust, Christy Marie. "Seeking Generalities in Salt Stress Effects on Herbivores: A Multi-Species Approach." UNF Digital Commons, 2010. http://digitalcommons.unf.edu/etd/377.

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Stress has been identified as one of the primary factors influencing the structure of food webs, but few conclusions about the effects of stress on community dynamics have emerged. This study examined generalities that exist between salt stress and insect herbivore responses. Ambient salinity was artificially increased by adding 1.3 kg/m2 of salt to six different plant species: Avicennia germinans, Baccharis halimifolia, Batis maritima, Borrichia frutescens, Iva frutescens, and Spartina alterniflora. By performing a multiple species examination, stress responses were examined to determine if c
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Zhou, Maoqian 1961. "Nitrogen fixation by alfalfa as affected by salt stress and nitrogen levels." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277231.

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The growth and Nitrogen fixation by one low salt tolerant alfalfa (Medicago sativa L.) and two germination salt tolerant selections inoculated with were investigated at two salt levels (0, -0.6 Mpa) and two N rates (1, 5ppm) using a system which automatically recirculates a nutrient solution. The high level of salinity (-0.6 Mpa osmotic potential of culture solution) resulted in substantial reduction in the N fixation percentage and total fixed N. The effect of salinity was more pronounced for later cuttings than for the earlier cutting. The N fixation percentages were substantially decreased
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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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Benothmane, Faycal. "Mycorrhizal Colonization and Growth Characteristics of Salt Stressed Solanum Lycopersicum L." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19908.

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The present study aimed to examine the effects of root colonization in tomato, Solanum lycopersicum L. cv. Moneymaker, by the arbuscular mycorrhizal (AM) fungus, Glomus intraradices Shenck and Smith, on alleviating salt stress. I postulated that AM symbiosis increases tomato plant performance to salt stress. Two greenhouse experiments were done according to a randomized factorial experimental design. The results showed a significantly higher level of AM root colonization that also occurred earlier in salt than non-salt treated plants. There were also positive interactions between root coloniza
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48

Wang, Lijun. "Physiological response of Kentucky bluegrass under salinity stress." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1492.

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Salinity is a major abiotic stress in plant agriculture which reduces seed germination, vegetative growth, and flowering, and limits crop productivity world-wide. Salinity causes water deficit, ion toxicity, and nutrient deficiency in plants, which can result in cellular damage, growth reduction, and even death. Kentucky bluegrass (Poa pratensis L.) is the most widely used cool-season species in cool-arid climates; however it has relatively poor salt-tolerance. Thus the development of Kentucky bluegrass genotypes with increased salt tolerance is of interest to turf breeders. One impediment to
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49

Sudiro, Cristina. "Unveiling salt-tolerance mechanisms in Italian rice varieties." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3425725.

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Plant tolerance to salinity stress involves complex physiological traits, metabolic pathways, and molecular and gene networks (Gupta and Huang, 2014, Int J Genomics). Salinity impacts plants by causing osmotic stress and ion toxicity. Salt stress also causes the production of excessive reactive oxygen species (Munns and Tester, 2008, Annu Rev Plant Biol). Salt-stress perception and signalling are required for appropriate responses to these insults. Key components of the signalling pathways induced by salt stress are Ca2+ (Knight et al., 1997, Plant J), NO and the recently re-evaluated H2O2.
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50

Mattern, Heather R. "Laser peening for mitigation of stress corrosion cracking at welds in marine aluminum." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5710.

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Approved for public release; distribution is unlimited.<br>This work examines the use of laser peening (LP) for mitigation of stress corrosion cracking (SCC) in marine grade aluminum alloys (Al-Mg). These alloys can be sensitized during welding and will develop a tensile residual stress in the heat affected zone that may promote SCC in a salt water environment. Metal inert gas welded aluminum alloy 5083 (4.8wt% Mg) plate was laser peened using a variety of laser intensities to create compressive stresses. Mechanical tests were performed to investigate the SCC of the material including slow str
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