Дисертації з теми "Saline condition"
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Johnson, D. W., S. E. Smith, and A. K. Dobrenz. "Breeding Strategies for Alfalfa Grown Under Saline Conditions." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/200809.
Повний текст джерелаHofmann, W. C., and P. T. Else. "Selecting for Cotton Seedlings Under Cool and Saline Conditions." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/204473.
Повний текст джерелаIqbal, Rana Muhammad. "Growth and physiology of spring wheat under saline conditions." Thesis, Bangor University, 1992. https://research.bangor.ac.uk/portal/en/theses/growth-and-physiology-of-spring-wheat-under-saline-conditions(fadba57d-0627-4506-807a-e6c80792f57c).html.
Повний текст джерелаMassey, Katherine. "The interactions between plants and invertebrate herbivores under saline conditions." Thesis, University of Sussex, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441628.
Повний текст джерелаAli, Rao Sajjad. "The potential for breeding Zea mays (L.) for saline conditions." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387451.
Повний текст джерелаAhmad, Manzoor. "Growth and gas exchange of wheat under saline and sodic conditions." Thesis, Bangor University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245308.
Повний текст джерелаKenny, Lahcen. "Physiological studies on the propagation of Atriplex spp for saline conditions." Thesis, Bangor University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357358.
Повний текст джерелаNasim, Muhammad. "Response of rice plants to plant growth regulators under saline conditions." Thesis, University of Aberdeen, 2003. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU164162.
Повний текст джерелаAl-Rawahy, Salim Ali. "Nitrogen uptake, growth rate and yield of tomatoes under saline conditions." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184894.
Повний текст джерелаJohnson, David Wayne. "Stress productivity in alfalfa: Selection under saline and nonsaline environmental conditions." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185176.
Повний текст джерелаKhan, Mohammad Jamal. "Water and nutrient management for wheat and barley grown under saline conditions." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/187026.
Повний текст джерелаPennington, Karrie Sellers 1949. "Alfalfa water-production functions under conditions of deficit irrigation with saline water." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/191117.
Повний текст джерелаYen, Tzu Chuan. "The Role of Calcineurin B-Like 10 in Flowers During Growth in Saline Conditions." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/322094.
Повний текст джерелаBoh, Michael Yongha [Verfasser], and Joachim [Akademischer Betreuer] Sauerborn. "Human urine as a crop fertilizer under saline conditions / Michael Yongha Boh. Betreuer: Joachim Sauerborn." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2014. http://d-nb.info/1047472813/34.
Повний текст джерелаMonihan, Shea M., Courtney A. Magness, Ramin Yadegari, Steven E. Smith, and Karen S. Schumaker. "Arabidopsis CALCINEURIN B-LIKE10 Functions Independently of the SOS Pathway during Reproductive Development in Saline Conditions." AMER SOC PLANT BIOLOGISTS, 2016. http://hdl.handle.net/10150/615779.
Повний текст джерелаMorelová, Nikoleta [Verfasser], and H. [Akademischer Betreuer] Geckeis. "Steel corrosion and actinide sorption by iron corrosion products under saline conditions / Nikoleta Morelová ; Betreuer: H. Geckeis." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/121957791X/34.
Повний текст джерелаMaaroufi, Dguimi Houda. "Régulation de l’assimilation de l’azote minéral chez Arabidopsis en conditions de stress salin." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112029.
Повний текст джерелаPlant growth activity is often limited by constraint environment conditions. Soil salinity is one of major abiotic stress which is becoming more problematic every year. In glycophytes species, it induced osmotic, nutritional and metabolic disturbances. The nitrogen nutrition and metabolism constitute an essential step in amino acid and nitrogen compounds synthesis in plants. Therefore, studying the expression of enzymes involved in nitrogen assimilation such as asparagine synthetase (AS, EC 6.3.5.4) in Arabidopsis thaliana will improve our knowledge on the transcriptional regulation of nitrogen metabolism under salt stress. In the present work of this thesis, a special attention was taken on AS gene (ASN2) wild type and mutants. Obtained results showed that ASN2 mutation accentuated the salt-induced effects on ammonium assimilation. The asn2-1 mutant was more sensitive to salt stress than the wild type, while the ASN2 transcript absence was associated with an important ASN1expression. The observed inhibition of glutamine synthetase (GS, EC 6.3.1.2) activity, the low aminatrice GDH (NADH-GDH, EC 1.4.1.2) activity under salt stress as well as the ASN2 transcript loss brought to an ammonium accumulation in asn2-1mutant. However, exogenous ammonium application showed that NaCl effect on asparagine synthetase expression was not directly related to the endogenous ammonium accumulation. Other metabolites accumulation such as asparagine, glutamine and glutamate could be involved in the obtained salt-effects on ASN expression in Arabidopsis
Multhaupt, Hendrik [Verfasser], Michael [Akademischer Betreuer] Wark, Adrian [Akademischer Betreuer] Schumpe, and Axel [Akademischer Betreuer] Brehm. "Potential of hydrochars obtained by hydrothermal carbonization under saline conditions / Hendrik Multhaupt ; Michael Wark, Adrian Schumpe, Axel Brehm." Oldenburg : BIS der Universität Oldenburg, 2018. http://d-nb.info/1155533070/34.
Повний текст джерелаEl, Mghadmi Z. Y. "Effect of environmental stresses and growing medium amendment with 'Zander' on growth of Acacia saligna under saline conditions." Thesis, Coventry University, 2011. http://curve.coventry.ac.uk/open/items/5727ee90-f827-485e-93d9-94a9b5456f43/1.
Повний текст джерелаMulthaupt, Hendrik Verfasser], Michael [Akademischer Betreuer] [Wark, Adrian Akademischer Betreuer] Schumpe, and Axel [Akademischer Betreuer] [Brehm. "Potential of hydrochars obtained by hydrothermal carbonization under saline conditions / Hendrik Multhaupt ; Michael Wark, Adrian Schumpe, Axel Brehm." Oldenburg : BIS der Universität Oldenburg, 2018. http://d-nb.info/1155533070/34.
Повний текст джерелаBekki, Abdelkader. "Fixation d'azote en conditions de stress salin chez Médicago : sensibilité respective des partenaires symbiotiques." Nice, 1986. http://www.theses.fr/1986NICE4060.
Повний текст джерелаBekki, Abdelkader. "Fixation d'azote en conditions de stress salin chez Medicago sensibilité respective des partenaires symbiotiques." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375958025.
Повний текст джерелаKrukowski, Elizabeth Gayle. "Carbon dioxide (CO2) sorption to Na-rich montmorillonite at Carbon Capture, Utilization and Storage (CCUS) P-T conditions in saline formations." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/49615.
Повний текст джерелаMaster of Science
Sheets, Johnathon P. "Cultivation of Nannochloropsis Salina in Diluted Anaerobic Digester Effluent under Simulated Seasonal Climatic Conditions and in Open Raceway Ponds." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373452229.
Повний текст джерелаMahjoubi, Habib. "Nouvelle stratégie d'amélioration de la productivité végétale en condition de stress environnemental via un meilleur contrôle du cycle cellulaire." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAJ059/document.
Повний текст джерелаSalt stress is one of the main environmental factors limiting plant growth and yield in cereal crops. It is therefore imperative to develop varieties more tolerant to salt stress in order to increase yield and ensure food security. The signaling pathway linking salt stress perception to cellular response was addressed here by studying RSS1-like proteins in plants. RSS1 (Rice Salt Sensitive 1) protein plays an important role in salt stress tolerance. It acts at the interface of stress perception and developmental control and division in meristems. During this work, the RSS1 counterpart named TdRL1 (Triticum durum RSS-Like 1) was isolated from the durum wheat Tunisian variety "Oum Rabiaa". We have demonstrated that TdRL1 carries the conserved D and DEN-Box motifs involved in the post-translational regulation of the protein. In addition, we show that TdRL1 is the functional homologue of RSS1 since it was able to complement the loss-of-function mutant rss1, hypersensitive to salt stress. In addition, heterologous expression of TdRL1 enhances salt stress tolerance in yeast and in Arabidopsis by increasing germination and reducing the accumulation of reactive oxygen species. Our cytological studies have shown that the TdRL1 protein is cytoplasmic in interphase and is localized at the spindle during mitosis. Remarkably, TdRL1 changes its subcellular localization under salt stress treatment and shows a partial accumulation in the nucleus, highlighting the multifunctional nature of this protein during salt stress response. Our data suggest that under salt stress, TdRL1 plays a role in the regulation of the cell cycle in relation with the microtubule network. Pursuing the study of RSS1-like multifunctional proteins will open up new research areas for the creation of wheat varieties that are more resilient to environmental stresses
Kumar, Vivek. "Effect of different ionic profiles of inland saline water on growth and agar characteristics of gracilaria cliftonii (Withell, Miller & Kraft, 1994)." Thesis, Curtin University, 2008. http://hdl.handle.net/20.500.11937/941.
Повний текст джерелаBekmirzaev, Gulom. "Relations eau et cultures de légumes : effet des sols salins et conditions de sècheresse sur la croissance, composition minérale et photosynthèse." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10010/document.
Повний текст джерелаConventional techniques used to control the soil salinization process - soil leaching or fertilization enhancing - contribute highly to soil and aquifers contamination; on the other hand, the use of salt tolerant species will be very useful to the plants, but does not solve the problem of soil or groundwater contamination. Hence, the only way to control the salinization process to maintain the sustainability of landscapes and agricultural fields is to combat the salinization problems with environmentally safe and clean techniques. One of these new techniques is the use of salt removing species. In order to study the potential capacity to remove soil salts, two horticultural species Portulaca oleracea and Tetragonia tetragonioides, and the salt sensitive crop lettuce (Lactuca Sativa L) were evaluated for their efficiency to remove salts from sandy soil. Plants were analysed relatively to total growth and mineral composition of the leaves and soil. According to the results, it was seen that T. tetragonioides is the best salt removing species and complementary, it has other benefits, which are as follows: 1) high biomass production; 2) several harvests; 3) high content of minerals; 4) horticultural importance; 5) easy multiplication; 6) easy crop management; 7) tolerance to drought conditions; 8) soil erosion control. P. oleracea is a high drought tolerant species, followed by T. tetragonioides. As concluding remarks, it was shown that this new technique to control salinity is a powerful and environmental clean tool to maintain the sustainability of the landscape and of the irrigated areas
Fakiri, Malika. "Obtention chez l'orge (Hordeum vulgare) de régénération par androgenèse et gynogenèse in vitro en conditions de stress salin : application à trois génotypes marocains." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL020N.
Повний текст джерелаPagès-Hélary, Sandy. "Libération en bouche des molécules de la flaveur : influence des composés salivaires au niveau macroscopique et moléculaire." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS055/document.
Повний текст джерелаThe aim of this work is to give a deeper understanding of the impact of the salivary composition on aroma release, by two approaches, an in vitro and an in vivo approach. The impact of salivary proteins on the release of 10 aroma compounds (5 esters and 5 ketones, varying in their hydrophobic chain length) was first investigated by in vitro model systems composed of artificial and human saliva. Artificial salivas were composed of the main salivary proteins, mucins and alpha amylase, alone and in mixture.The amount of aroma released in the vapor phase at equilibrium was analyzed by Static Headspace Gas Chromatography analysis. Air/system partition coefficients have been calculated. This in vitro approach allowed us to demonstrate the ability of both mucin and alpha-amylase to decrease the release of aroma compounds by hydrophobic effect (increase of retention with aroma hydrophobicity). Interestingly, no cumulative effect was observed when both proteins were mixed together in solution. The release of ketones in presence of human saliva is lower than in water and slightly higher than in the presence of artificial saliva. Esters are more affected by the presence of human saliva than ketones. This observation is due to an esterase activity of saliva, which increases with the hydrophobicity of esters. The in vivo release of ethyl propanoate and ethyl hexanoate was followed on ten subjects by Atmospheric Pressure Chemical Ionization mass spectrometry (APCI-MS) under different physiological conditions: at rest, after stimulation and after removing the superficial salivary coat. The saliva was characterized for each subject and each physiological condition. Great variations were observed between the subjects on the salivary flow, viscosity, composition and for each subject between the physiological conditions. The differences observed on in vivo release parameters are discussed as a function of physiological parameters. We observed that subjects with a more viscous saliva present a lower amount of aroma released. The presence of higher amounts of alpha-amylase increased the time needed to release the more hydrophobic compound, ethyl hexanoate. Our results suggest that the retention of hydrophobic aroma compounds by salivary proteins induces a modification of the kinetics of aroma release in real consumption conditions, and could be responsible for aroma persistence
Brosius, Jacques. "Les écarts de taux de salaire entre salariés résidents et transfrontaliers : mesure, causes et conséquences : application au luxembourg." Nancy 2, 2004. http://www.theses.fr/2004NAN20013.
Повний текст джерелаSimard, Mathieu. "L'effet sur le salaire de l'adéquation formation-emploi chez les immigrants qualifiés au Québec." Master's thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25351.
Повний текст джерелаBaayoud, Mohammed. "Salaire, consommation et reproduction de la force de travail essai d'analyse de l'évolution des conditions de vie de la population ouvrière urbaine au Maroc." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37595607b.
Повний текст джерелаHu, Yuncai. "Growth response of wheat plant to salinity in hydroponics and soil : I Interactive effects of salinity and macronutrients on the growth, yield, and mineral element contents under hydroponic conditions : II Spatial and temporal distribution of growth and the mineral element and carbohydrate contents in the leaves under saline soil conditions /." Zürich, 1996. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11619.
Повний текст джерелаAl, Naser Osama. "Effet des conditions environnementales sur les caratéristiques morpho-physiologiques et la teneur en métabolites secondaires chez Inula montana : une plante de la médecine traditionnelle Provençale." Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0341/document.
Повний текст джерелаThis thesis work is part of a regional project, initiated by the Luberon Park and in collaboration with the Laboratory of Pharmacognosy and Ethnopharmacology of the University of Marseille. It aimed to study the possibility of domesticating a wild plant, Inula montana L. (Asteraceae) known in the Provençal pharmacopoeia for its anti-traumatic effects similar to those of Arnica montana L. and to propose it as a new agricultural production. Inula montana produces lactones sesquiterpenes, identified as the secondary metabolites responsible for its biological anti-inflammatory properties. In this study, 1) to determine the growth and development characteristics of the largely unknown wild plant and to identify under natural conditions the most favorable factors for the production of secondary metabolites, 2) to study its characteristics. ability to multiply vegetatively in vitro and to form cell cultures able to synthesize the molecules of interest 3), to propose an agronomically applicable technical itinerary and 4) to test the effects of various environmental factors (fertilization, NaCl supply, modification circadian rhythm of illumination, UVB radiation, ablation of leaves, application of methyl jasmonate) on the qualitative and quantitative production of sesquiterpene lactones and phenolic compounds. The phenological characteristics of the wild plant are impacted by the altitude which induces a delay in the vegetative growth and the reproductive phase as well as physiological and morphological modifications. Levels of secondary metabolites (certain sesquiterpene lactones, total polyphenols and flavonoids) vary according to the season and are more important in the site which has the most water-constraining climatic conditions (draining soil, higher temperature and presence of a dry period in summer). Microscopic observation indicated the presence of two types of trichomes: glandular (biseriate) and non-glandular (hair) which are potentially the carrying structures of the molecules of interest. I. montana is able to form calli in vitro from root, foliar and shoot explants on which leafy shoots are formed. The domestication of Inula has been successful from seed from wild plants and under agronomic conditions, sesquiterpene lactone (costunolide, artemorine, eldarin and hydrocostunolide) and phenolic compounds are generally higher than in wild plants. The different constraints applied to test the effects of environmental factors on the production of metabolites have shown: 1) that there can be no correlation between the presence of oxidative stress and an increase in metabolite levels in Inula 2) that the accumulation of lactones and phenolic compounds seems mainly favored when the plant has a surplus of carbon skeletons, not used for growth; 3) finally, the two most favorable conditions for the accumulation of metabolites in Inula, are: in the leaves, a rapid alternation of light and darkness during the photoperiod and in the flower heads, the application of methyl jasmonate. This work augurs good prospects in terms of valuation of Inula in the pharmaco-cosmetological sector. It remains to continue the description of the phytochemical profile of the plant and to precisely locate the organs and / or anatomical substructures concentrating the compounds in question. Having demonstrated that this plant has a good response to domestication, it is also proposed to continue the study of environmental levers likely to positively and significantly influence the chemical profile of Inula
Levionnois, Charlotte. "The employment conditions of native-born people with immigrant parents : a comparison between France and The United States." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01E042/document.
Повний текст джерелаThe comparison between France and the United States shows how the inequalities in terms of employment conditions between descendants of immigrants and of native-born persons differ.This thesis proposes an empirical and comparative analysis of the employment conditions of immigrants’ offspring in France and in the United States. The goal is to better characterise the labour market integration of immigrants’ offspring, taking a multidimensional approach. The comparison between France and the United States highlight the dimensions of inequalities in terms of employment conditions between the descendants of immigrants and of native-born in each of country, henceforth improving the characterisation of these inequalities. Our analysis explores overeducation in a first chapter, in a second chapter, three aspects of the socio-economic security of job quality and in a final chapter, the distribution of wage differentials. Although differences in terms of employment conditions exist in both countries to the detriment of immigrants’ offspring, these differences do not appear to be the result of inequalities but rather of structural effects such as differences in age or education level between the two groups. The occupations and sectors of activity in which descendants of immigrants work also explain these differences. The results show similarities between the two countries. Once the selection bias to access employment is taken into account, having immigrant parents has no significant effect on overeducation (chapter 1) but a positive and significant effect on wages (chapter 2). On the other hand, the two countries differ on several points. In France, having immigrant parents significantly restricts the access to employment and lowers job security. However, in the United States, there is a negative effect only on working time (chapter 2). This thesis advocates for the consideration of the heterogeneity that exists within the population immigrants’ offspring, according to their parents’country of origin. Indeed, contradictory effects according to the parents’ country of origin may lead to non-significant effects at the aggregate level, as is the case for overeducation, for example. The final chapter shows a wider wage gap for low-wage workers in the two countries. Nevertheless, the major difference between the two countries is that the unobservable component contributes to narrowing the wage gap between natives and of immigrants but to increasing it in France
El-Azab, Kadria Moustafa. "Mobilité, biodisponibilité et phytotoxicité du plomb et du zinc en conditions salines : cas du ray-grass dans une terre argilo-limoneuse et application aux risques de réutilisation des eaux de drainage pour l'irrigation dans le delta du Nil." Nancy 1, 2005. http://www.theses.fr/2005NAN10011.
Повний текст джерелаThe wastewater re-use is a very world wide practice in the areas affected by shortages of water resources. For the majority of the countries of the arid and semi arid regions, water became the principal factor limiting their development. Egypt is one of the Mediterranean countries which is affected by shortages of water good quality resources. The re-use of this water for agricultural production is accompanied with salinization problems, which always develops because of the bad irrigation and drainage practices, especially with the irrigated agriculture in arid regions with high rates of evapotranspiration. The irrigation with wastewater is not only one source of dissolved salts but also of metallic trace elements (MTEs). The principal goal of this work was to study the effect of wastewater re-use with different salinity levels on the behaviour of metallic trace elements (MTEs) such as Zn and Pb in the presence or absence of plants. The combined effects of salinity and MTEs on the growth of rye-grass, and its production of biomass as been studied. Two experimental techniques were used : pot cultures with two different irrigation systems, with and without water excess, and hydroponic cultures to evaluate the effects of various salinity levels on the bioavailability, bioaccumulation, and phytotoxicity of Zn and Pb for the rye-grass. Salinity had a similar toxic effect on the growth of plants even if the sensitivity of plants is higher in hydroponic conditions. The bioavailability of Pb is limited compared with Zn which shows a higher transfer to the plants, with its higher translocation in the shoots and its phytotoxic effects on the growth of plants. However, the bioavailability of Pb is increased when the plant react actively to salinity stress. Thus, the bioavailability of MTEs can vary with the salinity. The bioaccumulation and the translocation of the MTEs in the shoots of the rye-grass increase when the plant reacts actively to a saline stress. The toxic effect of soil and irrigation water salinity on the growth of rye-grass and production of biomass can be affected by the MTEs according to the interaction between these two risk factors
Nziengui, Ikapi Moukagni Hugues John Sylvain. "Variabilité après culture in vitro de gamétophytes chez deux céréales : analyse de descendance d'haplodiploi͏̈des d'orge (Hordeum vulgare) en conditions de tests salins in situ : obtention de régénérants en présence de sel après gynogenèse chez le blé dur (Triticum durum)." Vandoeuvre-les-Nancy, INPL, 2004. http://www.theses.fr/2004INPL053N.
Повний текст джерелаFrom barley (Hordeum vu/gare, var. Tamelalt), in situ comparative saline test ofnine androgenetic and gynogenetic descents, the regenerants of which were obtained with or without NaCI in the in vitro culture medium, showed a large variability for the number of tillers, plant height, total seed weight and 100-seeds weight. The gynogenetic families produced more tillers than the androgenetics and Tamelalt. With the treatment without salt, gynogenetic GOa, the regenerant of which was obtained without NaCI in vitro, gave the best output in seeds and produced an increased seed weight of 9,20% over Tamelalt. Under 5 g/L NaCI, the seed weights of gynogenetic families showed an increase of 16,10 to 27,12% over Tamelalt. When irrigated with 10 g/L NaCI, the differences between the families are low. Ln vitro salt had no effect on families behaviour under in situ salt stress. Furthermore, a negative correlation showed to be established between the number of seeds and 100-seeds weight. Diallel analysis 3x3, inc1uding GOa, expressed in F1 generation significant GCA effects for plant height, number of tillers and 100-seeds weight, showing that average transmission of the variations re1ated to these characters was very strong. Ln F2 generation, the segregation of tillers number and the plant height variations from GOa suggest that implied hereditary elements wou1d be nuclear. From durum wheat (Triticum durum), pseudo-tillering of regenerants was carried out in vitro up to the 14th transfer. The production of pseudo-tillers followed linear or exponential profile, showing a specific multiplication activity for each regenerant
Sarrazin, Jean-Luc. "La campagne et la mer : les pays du littoral poitevin au Moyen Age (fin XIIe siècle - milieu XVe siècle)." Paris 4, 1998. http://www.theses.fr/1997PA040292.
Повний текст джерелаThe thesis presents a study of littoral countries of Poitou between the great expansion that hat taken place during the central years of the middle ages and the relative ending of the ordeals of the XIVth and XVth centuries. It consists in three parts. The first one (prolegomena) describes the geographical components especially the lay-out of the coast and the link between the ocean and the sea-side countries. The second one (book i: expanding and organization of the space - around 1170; around 1340) is the core of the work where are studied the genesis of the marais poitevin, the salt marshes spreading, the conquest of the intended coastline as well as production and seigniorial structures. Towards the beginning of the XIVth century the huge development effort leads to a high con, trol of the environment and to an exceptional occupation of the whole coastline. The third part (book II: crisis and strengthening -around 1340; around 1460-) deals with a study of the ordeals which affect the region starting from 1346-1350 (insecurity, plagues). This part puts into light the firmness of the seigniory which goes through the turmoil without major damage. The main themes studied are: organization of the coastline, control of the waters, salt production means, social and seigniorial structures, peasants agitations
Alburquerque, Kira d'. "Giovanni Battista Foggini et la sculpture à Florence à l'époque des derniers Médicis (1670-1737) : la condition sociale de l'artiste et la pratique du dessin." Thesis, Paris, EPHE, 2015. http://www.theses.fr/2015EPHE4054.
Повний текст джерелаThis thesis, presenting sculptors active in Florence at the time of the last two grand dukes of the Medici dynasty, Cosimo III (1670-1723) and Gian Gastone (1723-1737), is a synthetic study which situates these sculptors in their historical and societal contexts. The work takes into account all the aspects of the profession: the training, in Rome and in Florence, the living and working conditions, the social status, the organisation of the workshops, the creative process, the division of work among the specialists, as well as the important role of drawing in designing and executing the works. When Cosimo III came into power, he decided to bring about a revival in Florentine sculpture and rapidly took many initiatives in this direction: he reformed artistic education, developed the production of luxury artefacts within the Galleria dei Lavori and facilitated the work of sculptors in many ways, offering many of them monthly pensions, official functions and locations for workshops. Even though the period saw a significant number of sculptors working in Florence, artistic life actually centred around a limited number of major figures. Giovanni Battista Foggini, the most important, was settled in the famous sculpture workshop located in Borgo Pinti. At the height of his long career, Foggini was First sculptor as well as Architect of the Galleria dei Lavori, hence managing a vast team of collaborators, assistants and craftsmen. The research is based on a thorough analysis of the archives related to the period as well as an extensive study of the preparatory drawings. A volume of appendices contains a repertory of the sculptors and also the transcription of many unpublished documents
Yalimendet, Pierre. "L'économie forestière dans le sud-ouest de la R. C. A." Bordeaux 3, 1986. http://www.theses.fr/1986BOR30049.
Повний текст джерелаThe thick central african forest, situated in the south-west is very rich and has a variety of valuable trees. Its recent exploitation by foreign companies is hampered by transportation problems. Nervertheless it occupies an important place in the national economy
Avrane, Colette. "Les ouvrières à domicile en France de la fin du XIXe siècle à la Seconde Guerre mondiale : Genèse et application de la loi de 1915 sur le salaire minimum dans l'industrie du vêtement." Phd thesis, Université d'Angers, 2010. http://tel.archives-ouvertes.fr/tel-00560477.
Повний текст джерелаTandjigora, Abdou Karim. "L’évolution économique et sociale comparée de deux régions sénégalaises dans le processus de colonisation, décolonisation et développement : le boundou et le gadiaga, 1885-1980." Thesis, Bordeaux 4, 2012. http://www.theses.fr/2012BOR40040/document.
Повний текст джерелаThe economic and social evolution compared by two regions of Senegal in the process of decolonisation: Boundou and Gadiaga on 1885-1980This thesis is the analysis of the internal evolution of Boundou and Gadiaga (Eastern Senegal) whose economies have been little entitled to the colonial and postcolonial elites. The processes and mechanisms of marginalisation are so far softly reported regarding the Gadiaga’s area but this has not been considered in the case of Boundou, and indeed previous work exclusively restricted to the period of colonial domination and makes no “link” between the colonial and postcolonial manifestations of marginalisation.This exclusion of the overall economy of Senegal in many ways and any time is the result of the orientation of economic policies and low opportunities offered by public policies in certain areas. The factors of marginalisation of Boundou Gadiaga are basically structural order (lack of substantial investment and lack of vision and strategy on long run but weakness of sustainable economic approaches) and non-cyclical economic mechanism. Along the social aspects, the population undergoes heavily the economic consequences of the lackluster of the region, and the conditions entail the mass movement of population from rural to urban area (rural exodus) and the disruption of social structures, which increase the pressure of the economic on backwardness. It occurs on short run vicious circle of marginalisation since the accentuation of economic backwardness by social phenomena, encourages public authorities to push back investment’s programs or cancel it, by spotlighting the pretext of the declining population.The similarity of the economic condition between the “shared time” colonial and “owned time” postcolonial and the social behaviours considered induced effects does not allow the scheme management of the modern state of Senegal is simply the offshoot of colonial policy
Phan, Thi Thanh Hoai. "Investigating the Role of Arabidopsis Plasma Membrane Intrinsic Protein AtPIP2;1 in Seed Germination." Thesis, 2021. https://hdl.handle.net/2440/135687.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Agriculture, Food and Wine, 2022
Pennington, Karrie Sellers. "Alfalfa water-production functions under conditions of deficit irrigation with saline water." 1986. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1986_461_sip1_w.pdf&type=application/pdf.
Повний текст джерелаMogany, Trisha. "Optimization of culture conditions and extraction method for phycocyanin production from a hypersaline cyanobacterium." Thesis, 2014. http://hdl.handle.net/10321/1117.
Повний текст джерелаCyanobacteria contain phycocyanin a light harvesting pigment found to have numerous biotechnological applications, such as: a natural colorant in food and cosmetics, fluorescent tags employed in clinical and immunological research and also in therapeutic processes. Successful phycocyanin production depends on growth characteristics, ability to accumulate high quantities of the pigment, and an effective downstream process. Therefore, the aim of this research was to optimize the extraction method and production by determining the optimal cultivation conditions for phycocyanin producing cyanobacterium. This cyanobacterium was isolated from a hypersaline water body in Kwa-Zulu Natal, and subsequently purified using traditional streak and spread plate techniques. Different cell disruption techniques and a range of buffers were evaluated for the extraction of phycocyanin. The buffer concentrations and pH was subsequently optimized. Results showed that maximum phycocyanin was extracted when cells were suspended in 50mM sodium phosphate buffer (pH-7.5) supplemented with 10 % lysozyme and then disrupted using the freeze–thaw method at -20 & 4°C. The UV-Vis absorption spectral scan of the crude extracted pigments showed a peak at 620 nm. This corresponds to phycocyanin production. Unwanted proteins were removed using a 25and 50% saturated ammonium sulphate precipitation, followed by dialysis. SDS-PAGE showed two subunits with molecular masses of 19 and 20 kDa. These masses corresponded to phycocyanin α and β subunits. Furthermore, a food grade purity ratio (A615/A280) of 1.20 was achieved. The effects of various abiotic factors (temperature, light and pH) on growth and phycocyanin production of the Cyanothece sp. was investigated. Temperature ranging from 20-45°C and pH (5-10) was evaluated for 2 weeks. Cultures were then subjected to four photoperiods (24:0, 18:06 12:12 and 8:16 h light: dark) three light intensities (25, 75 and 125 µmol photons per m2 per –s) at varying wavelengths i.e. blue, red and green and Grolux light. Ideal conditions were observed at 35°C, 125 µmol photons.m2.s-1 of Grolux light for a 16:8 light and dark photoperiod. It was observed that the highest biomass and phycocyanin production was found to be at 35°C, temperatures below or above resulted in a decrease in both growth and pigment synthesis. Phycocyanin concentration changed in response to light quality and intensity. A significantly higher (p<0.05) phycocyanin yield was found when the culture was exposed to 125 µmol photons.m2.s-1 of Grolux light compared with the other three light conditions. Using Design of experiments, a series of fractional factorial experiments were carried out to optimize media components for pigment production. The final optimized growth medium was determined from a central composite design using response surface plots together with a mathematical point-prediction tool and consisted of 2g/L NaNO3, 0.06g/L K2HPO4, 0.12 g/L MgSO4.7H2O, 0.033 g/L CaCl2.2H2O, 100g/L NaCl, 12mL minor nutrients and 0.5 trace metal. A 72 % increase in phycocyanin was observed. This research revealed that this particular Cyanothece sp. shows great potential as a reliable source of phycocyanin.
Guerrero-Rodriguez, Juan de Dios. "Growth and nutritive value of lucerne ( Medicago sativa L. ) and Melilotus ( Melilotus albus Medik. ) under saline conditions." 2006. http://hdl.handle.net/2440/37866.
Повний текст джерелаThesis (Ph.D.)--School of Agriculture, Food and Wine, 2006.
Liu, Chung-Wei, and 劉仲維. "Effects of Nitric Oxide or Calcium Chloride Treatment on Sweet Pepper and Melon Seedling under Saline or Waterlogging Conditions." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/87256176341535955071.
Повний текст джерела國立宜蘭大學
園藝學系碩士班
99
Taiwan often suffered from plum rain or cloudburst hit in spring and summer season causes waterlogging. In addition large-scale use of chemical fertilizers resulted in accelerated soil salinization. These stresses cause vegetable quality and yield damage. In the study, we investigated plant growth, oxidative stress levels and the functioning of the free-radical scavenging system under salt and waterlogging. The nitric oxide or calcium chloride applied as a soil drench modifies the adverse effects of these stresses at the same time. Hopeful that provided salt and flooding stress resistance as to improve summer vegetable production in Taiwan. Experimental materials were sweet pepper (Trim Star) and melon (KY Silver Light and KY Jill). When plant seedlings expand the third true leaves entirely, they were pretreated 300 mM NaCl twice. Exogenous nitric oxide or calcium chloride was performed. The group of exogenously-applied nitric oxide include Hyponex No. 2 of 300 mg L-1, NaCl of 300 mM and three different concentration sodium nitroprusside (SNP; a NO donor ; 0, 100, 150 μM) mixture solution. The group of calcium chloride treatment include Hyponex No. 2 of 300 mg L-1, NaCl of 300 mM and three different concentration sodium calcium chloride (25, 50, 75 mM) mixture solution. As a result shows exogenous nitric oxide or calcium chloride increased shoot length, number of leaves, stem width, root length, leaves length and leaves width, shoot fresh weight, root fresh weight, shoot dry weight and root dry weight, and promoted activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR), and decreased electrolyte leakage (EL%), malonaldehyde (MDA), superoxide anion and hydrogen peroxide content in sweet pepper and melon seedling under salt stress. Among the treatments of three different concentration medicaments, Exogenous 150 μM SNP treatment had a best protective effect to alleviate adverse effect of salt stress in sweet pepper, however, and the best effect for melon was50 μM SNP. Calcium chloride of 25 mM pre-treatment can markedly reduce the injury of salt stress. One cultivar of sweet pepper and two cultivar of melon were carried out waterlogging experiment in the simple green house. The experiment of exogenous nitric oxide was plants were treated with 0, 50 or 150 μM SNP 2 and 4 day prior to waterlogging, applied as a soil drench. Calcium chloride treatment use Hyponex No. 2 of 300 mg L-1 add to CaCl2 of 25, 50 or 75 mM mixture solution 1, 7 and 14 day prior to waterlogging, applied as a soil drench. The period of flooding was 14 d followed by a 7 d drainage period. As a result shows nitric oxide or calcium chloride treatment alleviated growth inhibition and lipid peroxidation, induced antioxidant enzymatic activities. The SNP of 150 μM and 50 μM pretreatment demonstrated the greatest effect in sweet pepper and melon, respectively. Exogenous 75 mM CaCl2 can significantly alleviate the waterlogging damage.
Jayakumar, J. S. "Analysis Of Two Phase Natural Circulation System Under Oscillatory Conditions." Thesis, 1999. http://etd.iisc.ernet.in/handle/2005/1519.
Повний текст джерелаKatulanda, Panchali. "SYMBIOTIC NITROGEN FIXATION AND SEED DEVELOPMENT OF GENETICALLY MODIFIED SOYBEAN IN RELATION TO BRADYRHIZOBIUM INOCULATION AND NITROGEN USE UNDER ACIDIC AND SALINE DYKELAND SOIL CONDITIONS." 2011. http://hdl.handle.net/10222/14325.
Повний текст джерелаTeiva, Salmon. "Étude des déterminants de la relation positive entre la taille des organisations et les salaires au Canada." Mémoire, 2010. http://www.archipel.uqam.ca/2737/1/M11263.pdf.
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