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Dissertations / Theses on the topic 'Plants, Effect of gibberellins on'

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Published: 4 June 2021

Last updated: 25 January 2023

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1

Darwiche, Amal Omar 1964. "Effect of cytokinin, gibberellin, and nitrogen applications on the growth of eldarica pine seedlings." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276979.

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A greenhouse experiment was conducted over a ninety day period to test the effect of different nitrogen fertilizer regimes and several application rates of compounds with gibberellin and cytokinin activity (GA4/7 and BA, respectively) on the growth and development of Pinus brutia var. eldarica. Nitrogen produced no significant effects and this was attributed to its abundance in the potting medium, to begin with. All levels of growth regulators used showed a highly significant effect on vegetative development. A reduction in root collar diameter, shoot elongation, needle nitrogen content and ov

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2

Bezuidenhout, Johannes Jacobus. "Elucidating the dual physiological induced effect of gliotoxin on plants / Johannes Jacobus Bezuidenhout." Thesis, North-West University, 2011. http://hdl.handle.net/10394/6945.

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Fungi and Oomycetes represent the two most important groups of eukaryotic plant pathogens. Besides chemical and physical control of these pathogens, biological control is an approach enjoying increasingly more focus. One of the biological agents increasingly employed in biological control of plant pathogenic fungi is ironically the fungus Trichoderma, more specifically Trichoderma harzianum. Besides control of the fungal plant pathogens, another interesting aspect observed when plants are treated with Trichoderma harzianum are effects such as complete and even stand of plants, faster seed germ

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3

Buzzello, Gederson Luiz. "Uso de reguladores no controle do crescimento e no desempenho agronômico da cultura da soja cultivar CD 214 RR." Universidade Tecnológica Federal do Paraná, 2010. http://repositorio.utfpr.edu.br/jspui/handle/1/240.

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O acamamento de plantas provoca perdas significativas no rendimento de grãos da cultura da soja e por isso estratégias de manejo para minimizar o acamamento são importante necessidade na agricultura atual. O objetivo desse trabalho foi estudar ação de reguladores de crescimento vegetal sobre o acamamento e outras características agronômicas da cultivar de soja CD 214 RR, em épocas de semeadura e densidades distintas. Foram conduzidos dois experimentos na Estação Experimental da Universidade Tecnológica Federal do Paraná, Campus Pato Branco. No primeiro experimento foram testados diferentes reg

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4

Ertekin, Ozlem. "The Effect Of Indole Acetic Acid, Abscisic Acid, Gibberellin And Kinetin On The Expression Of Arf1 Gtp Binding Protein Of Pea (pisum Sativum L. Cv. Araka)." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608902/index.pdf.

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ADP Ribosylation Factor 1 (ARF1) is a universal small GTP binding protein which has an important role in vesicular trafficking between endoplasmic reticulum and Golgi. ARF1 is a basic component of Coat Protein I (COPI) vesicles which have functions in both formation of coatomer complex and recruitment of cargo proteins. In this study, the expression ARF1 was analyzed in pea (P. sativum L. cv. Araka) grown at different developmental stages. Because of the differential hormonal levels at corresponding stages, the effects of hormones on ARF1 expression were also studied. The results of present re

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5

Johnson, Kerry. "Photoperiod induction, Gibberellic acid, mulch and row cover effects on fresh cut flower production of three Rudbeckia hirta L. cultivars." Diss., Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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6

Sakhatska, I. M. "Study of medicinal plants with sedative effect." Thesis, БДМУ, 2021. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/18909.

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7

Dickson, Ross L. "The effect of water stress, nitrogen and gibberellic acid on the phytotoxicity of post-emergent herbicides to Avena spp." Lincoln University, 1990. http://hdl.handle.net/10182/1283.

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A series of experiments was carried out on cultivated oat (Avena sativa L. cv Amuri) to examine the efficacies of fluazifop-butyl and glyphosate against water stressed plants, plants grown in low and high nitrogen and plants treated with gibberellic acid (GA₃). Avena sativa L. was used as a test plant and on completion of the experiments, further studies were carried out on the weed species wild oat (Avena fatua L.). In the laboratory, plants maintained at wilting point for five days before and nine days after spraying and treated with fluazifop-butyl (0.5 kg a.i./ha) appeared healthy 32 days

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8

Chakauya, Ereck. "Effect of manipulating pantothenate biosynthesis in higher plants." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614866.

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9

Camut, Lucie. "Rôle des gibbérellines dans l’adaptation des plantes à la disponibilité en azote." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAJ109.

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Les gibbérellines (GAs) sont des phytohormones régulant divers aspects de la croissance et du développement de la plante en réponse aux signaux endogènes et exogènes. Au niveau moléculaire, les GAs stimulent la dégradation des protéines DELLA, répresseurs nucléaires de croissance. L’azote (N), macronutriment essentiel au développement de la plante, représente un des facteurs les plus limitant pour la productivité agricole. Le nitrate (NO3-), principale source de N pour les plantes cultivées, est une molécule soluble dont la disponibilité varie dans l’espace et le temps. Depuis la Révolution Ve

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10

Voss, Joshua. "Forage adaptability trials for forage and seed production in Bolivia : effect of 5 herbicides on 7 native Utah forbs /." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1639.pdf.

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11

Sangwan, Veena. "Temperature sensing in plants." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37831.

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It is now well established that cold-triggered calcium influx mediates cold-induced gene expression and development of freezing tolerance (cold acclimation). In this thesis, cold signaling events both upstream and downstream of calcium influx were examined.<br>First, it was shown that the studies on calcium mediation of cold acclimation in alfalfa cell suspension cultures could be applied to intact seedlings of Arabidopsis. Calcium chelators and channel blockers caused a strong reduction in the cold-induced accumulation of kin1 and kin2 transcripts, suggesting that calcium influx was an essent

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12

Wang, Ding Xiang. "Interaction between the effects of sodium chloride and high temperature on the vegetative growth of tomato (Lycopersicon esculentum Mill.)." Title page, contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phw2456.pdf.

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13

Gencoglu, Cihangir. "Assessment Of The Effect Of Hydroelectric Power Plants&#039." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612165/index.pdf.

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The Turkish TSO (TEIAS) has been leading a project that aims the synchronous interconnected operation of the Turkish Power System and the ENTSO-E CESA (former UCTE) System. For this purpose, this study concentrates on the specific problems related to the electromechanical systems of large size hydroelectric power plants regarding low frequency inter area oscillations, which are prone to occur once the interconnected operation is established. The expected frequency of inter area oscillations after interconnected operation is close to 0.15 Hz, which is in the frequency range of the speed governi

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14

Lau, Ka Keung. "Effect of Oâ†3 fumigation on nitrate reduction in plants." Thesis, Lancaster University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337586.

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15

LoÌpez-Chuken, Ulriko J. "The effect of chloro-complexation on cadmium uptake by plants." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430615.

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16

McKee, J. "The effect of temperature on sexual reproduction in flowering plants." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360337.

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17

Mjwara, Jabulani Michael. "The interactive effects of light, temperature and CO₂/O₂ ratios in photosynthesis of Coix lachryma-jobi L." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1003785.

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A portable infra red gas analyzer was used to investigate the interactive effects of light, temperature, and CO,jO, ratios under controlled environmental conditions in an attempt to model gas exchange characteristics of Coix Iachryma-jobi L. Plotting light response curves as a function of temperature (20, 25 30 and 35°C) revealed no sign of light saturation even at a photosynthetic photon flux density (PPFD) close to 2000 !Lmol m-' sol. High net assimilation rates (A) of approximately 24 !Lmol CO, m"s'! were realized at 30-35°C. Assimilation (A) versus internal CO, partial pressure (C,) curves

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18

Anderson, Annette. "The effects of acetolactate synthase (ALS) inhibiting herbicides on the growth, yield, nodulation and nitrogen fixation of selected legumes." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09pha545.pdf.

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Bibliography: leaves 251-268. The main aim of this thesis is to determine the effects of sulfonylurea residues and in-crop usage of selected ALS-inhibiting herbicides on the growth, yield, nodulation and nitrogen fixation of legumes under alkaline conditions. Reviews literature concerning ALS-inhibiting herbicides, nitrogen fixation and the effects of herbicides on legumes, rhizobia, nodulation and nitrogen fixation; Glasshouse trial investigating the effects of flumetsulam on biomass and nodulation of chickpea; Field trail investigating the effects of sulfonylurea residues and 'in crop' usage

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19

Greyvenstein, Fritz Siegruhn. "Performance prediction for multi-effect distillation (MED) plants / by F.S. Greyvenstein." Thesis, North-West University, 2007. http://hdl.handle.net/10394/855.

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Many countries worldwide experience water shortages on a daily basis and this water crisis is expected to increase even more in the near future due to limited fresh water resources. Alternative sources of fresh water such as desalinated seawater are becoming an attractive option for many developing countries. Although various desalination technologies exist today, interest in multi-effect distillation (MED) is growing rapidly worldwide. Today various energy power sources are utilized in MED plants, but the use of nuclear power as a clean and effective heat source for the MED process seems to

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20

Torp, Mikaela. "The effect of snow on plants and their interactions with herbivores." Doctoral thesis, Umeå : Department of Ecology and Environmental Science, Umeå University, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-30444.

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21

Ingarfield, Patricia Jean. "Effect of water stress and arbuscular mycorrhiza on the plant growth and antioxidant potential of Pelargonium reniforme Curtis and Pelargonium sidoides DC." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2794.

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Thesis (MTech (Horticulture))--Cape Peninsula University of Technology, 2018.<br>Pelargoniums have been studied extensively for their medicinal properties. P. reniforme and P. sidoides in particular are proven to possess antimicrobial, antifungal and antibiotic abilities due to their high antioxidant potential from compounds isolated from their tuberous roots. These plants have now been added to the medicine trade market and this is now causing concern for conservationists and they are generally harvested from the wild populations. This study evaluated the effect of water stress alone and in c

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22

Lumbuenamo, Sinsi Dianza 1954, and Sinsi Dianza 1954 Lumbuenamo. "Litter cover effect on soil spectral response." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276620.

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In order to assess the influence of litter cover on soil background spectral response, trays of dry Lehmann Lovegrass (Eragrostis lehmanniana) were used at three different densities (635, 1015, 2815 Kg/ha) over three different soil backgrounds (Whitehouse sandy clay loam, Superstition sand, and Cloversprings loam). After analysis, spectral measurements made with a Barnes Multi-Modular Radiometer revealed that, soil-litter mixtures exhibit an oil like spectral behavior in the (0.45-2.30 m) waveband range. Mulched soils could not be discriminated from bare soils solely on the basis of the spectr

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23

Ayub, Najma. "The effect of VAM inoculation on interplant ¹⁵N transfer." Thesis, University of Aberdeen, 1991. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU546184.

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This thesis reports a study carried out to investigate the involvement of VA mycorrhizas in interplant 15N transfer in a model pasture system and in a model agroforestry system. Two pot experiments were designed to investigate the effect of VAM inoculation on 15N transfer from clover to rye grass in sterile (in the first experiment the sterilisation was by autoclaving and in the second, by gamma-irradiation) and fresh soil. A third pot experiment was designed to investigate the effect of VAM inoculation on 15N transfer from grass and clover to wild cherry seedlings in fresh soil. For these pot

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24

Brownell, Peter Ferguson. "Sodium as an essential element for C4 plants /." Title page, contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09SD/09sdb884.pdf.

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25

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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26

Adhikari, Sajag. "Solvent Effects and Bioconcentration Patterns of Antimicrobial Compounds in Wetland Plants." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc67953/.

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This study looked at effects of organic solvents dimethylsulfoxide, dimethylformamide and acetone at 0.01%, 0.05% and 0.1% concentration on germination and seedling development wetland plants. Even at 0.01% level, all solvents affected some aspect of seed germination or seedling growth. Acetone at 0.01% was least toxic. Root morphological characteristics were most sensitive compared to shoot morphological characteristics. This study also looked at bioconcentration patterns of antimicrobial compounds triclosan, triclocarban and methyl-triclosan in wetland plants exposed to Denton Municipal Wast

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27

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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28

Saif, Salman Mohammed 1958. "EFFECT OF SALINITY ON THE TOMATO PLANTS GROWN IN A HYDROPONIC SYSTEM." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/277070.

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29

Barron-Gafford, Greg A., Rebecca L. Minor, Nathan A. Allen, Alex D. Cronin, Adria E. Brooks, and Mitchell A. Pavao-Zuckerman. "The Photovoltaic Heat Island Effect: Larger solar power plants increase local temperatures." NATURE PUBLISHING GROUP, 2016. http://hdl.handle.net/10150/621943.

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While photovoltaic (PV) renewable energy production has surged, concerns remain about whether or not PV power plants induce a "heat island" (PVHI) effect, much like the increase in ambient temperatures relative to wildlands generates an Urban Heat Island effect in cities. Transitions to PV plants alter the way that incoming energy is reflected back to the atmosphere or absorbed, stored, and reradiated because PV plants change the albedo, vegetation, and structure of the terrain. Prior work on the PVHI has been mostly theoretical or based upon simulated models. Furthermore, past empirical work

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30

Rahman, Yosra Ahmed Soltan Abd El. "Effect of tanniniferous plants and essential oils on methane emission in ruminants." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/64/64134/tde-26092012-134451/.

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Tannins and essential oils are secondary metabolites that may be used as natural modifiers of rumen fermentation to reduce the ruminants\' methane (CH4) emission. To study the application of tannin-rich plants from Egypt and Brazil, as well as essential oils that are available in international trade, three studies were conducted at Animal Nutrition Laboratory of Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, at Piracicaba, Brazil. The first study was aimed to assess the potential of tanniniferous plants prosopis (Prosopis juliflora), acacia (Acasia saligna), atriplex (Atr

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31

De, Canha Marco Nuno. "Antimicrobial and anti-inflammatory effect of southern African plants against Propionibacterium acnes." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/79786.

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Twenty southern African plants were selected based on traditional use. The ethanol extracts were tested for their antimicrobial activity against P. acnes (ATCC 11827) [Propionibacterium acnes (Gilchrist) Douglas and Gunter deposited as Corynebacterium acnes (Gilchrist) Eberson]. The 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities of the extracts were also determined. Cytotoxicity on human macrophage cells (U937) was performed using the 2,3-Bis-(2-Methoxy-4-Nitro-5-Sulfophenyl)-2H-Tetrazolium-5-Carboxanilide (XTT) reduction assay. The cytotoxicity was performed to ensure th

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32

Voigt, Astrid. "Bioavailability of trace metals to plants." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19561.

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Soil quality guidelines are currently based on total trace metal loads. There is a need to define indices of bioavailability to allow reasonable predictions for plant metal uptake and toxicity in soils. Trace metal toxicities to plants often correlate best with free metal ion activities. The first objective was to develop a plant bioassay that is sensitive to trace metals at concentrations realistic for soils. The root elongation of lettuce Lactuca sativa 'Buttercrunch' was used as toxicological endpoint. This endpoint was sensitive and reproducible to environmentally relevant concentrations o

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33

Choudhury, Feroza Kaneez. "Rapid Metabolic Response of Plants Exposed to Light Stress." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157543/.

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Environmental stress conditions can drastically affect plant growth and productivity. In contrast to soil moisture or salinity that can gradually change over a period of days or weeks, changes in light intensity or temperature can occur very rapidly, sometimes over the course of minutes or seconds. So, in our study we have taken an metabolomics approach to identify the rapid response of plants to light stress. In the first part we have focused on the ultrafast (0-90 sec) metabolic response of local tissues to light stress and in the second part we analyzed the metabolic response associated wit

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34

Ayeni, Olutoyosi Olaide. "Growth responses within the Genus Cyperus exposed to aluminium and iron in hydroponics." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2430.

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Thesis (DTech (Environmental Health))--Cape Peninsula University of Technology, 2016.<br>Generally, aluminium (Al) is required as a micronutrient by plants. The metabolism of Al within the plant can exert a number of effects within the plant. These include: interfering with cell division in both root tips and lateral roots, increasing cell wall rigidity, maintaining the correct cellular redox state, as well as the various other physiological and growth responses. Al is one of the most abundant elements in the earth’s crust and becomes toxic in many plants when the concentration is greater than

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35

Eakes, Donald Joseph. "Moisture stress conditioning, potassium nutrition, and tolerance of Salvia splendens 'Bonfire' to moisture stress." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54350.

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The objective of this study was to determine the leaf water relations, gas exchange, and growth of the bedding plant salvia Salvia splendens 'Bonfire‘ as influenced by moisture stress conditioning (MSC - exposing plants to 4 sublethal dry-down cycles) and potassium (K) nutrition. Plants were fertilized with one of six K rates: 25, 75, 150, 300, 450, and 600 ppm as KCl in experiment one. Seven weeks after seeding plants were subjected to MSC. MSC and increasing K rate resulted in osmotic adjustment and increased cellular turgor potentials. Foliar K content increased as osmotic potentials decrea

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36

Yu, Xiaozhang, and 于曉章. "Uptake, assimilation and toxicity of cyanogenic compounds in plants." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41634159.

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37

Laverty, Edward. "The molecular basis of gene expression variability in transgenic tobacco plants." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5238/.

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An extensive investigation into and charactaisation of factors influencing transgene expression following introduction of the transgoie into tobacco via Agrobacterium- mediated transformation was carried out. Characterisation of material supplied at the outset of this project revealed that this material was unacceptable for further analysis. It was thus deemed necessary to obtain large populations of transgenic tobacco heterogenous for levels of transgene expression. Characterisation of these populations (CaMV-lecA and ssRubisco-lecA plants) showed that all plants fell into one of four segrega

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38

Rawahy, Salim Ali 1951. "EFFECT OF SODIUM-CHLORIDE, SODIUM-SULFATE AND CALCIUM-CHLORIDE SALTS ON NITROGEN AND PHOSPHORUS UPTAKE BY TOMATO PLANTS (SALINITY, OSMOTIC PRESSURE, SPECIFIC ION EFFECT)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275527.

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39

Bao, Jiao Lin. "The antitumor effect of Forsythiae Fructus and its underlying mechanisms." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3690828.

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40

Cooke, Susan Jill. "The effect of plant UV-B absorbing compounds on life history traits and reproductive performance in variable UV-B environments." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=620.

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Thesis (Ph. D.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains x, 130 p. : ill. Vita. Includes abstract. Includes bibliographical references.

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41

Leeson, Elspeth A. "The effect of low temperatures on some species of Chlamydomonas and Chloromonas." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236229.

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42

Tront, Jacqueline Marie. "Plant Activity and Organic Contaminant Processing by Aquatic Plants." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5234.

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This research explored fate of organic contaminants in aquatic plant systems through (i) experimental development of relationships to describe sorption, uptake and enzymatic processing of contaminants by plants and inhibition of aquatic plants by contaminants and (ii) incorporation of experimental relationships into a conceptual model which describes contaminant fate in aquatic plant systems. This study focused on interactions of aquatic plants L. minor and M. aquaticum with halogenated phenols. 2,4,5-trichlorophenol (2,4,5-TCP) and 2,4-dichlorophenol (2,4-DCP) are precursors for the highly

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43

Larsson, Marie-France. "The Effect of Plants on Individuals' Stress Level in an Indoor Work Environment." Thesis, Mid Sweden University, Department of Social Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-11141.

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<p>Many instances of sick leave can be linked to diseases caused by stress. An efficient way to counter the negative effects of stress is coping. However, trying to fit coping activities into an already busy schedule can be stressful in itself. Therefore it is interesting to study passive stress-reducing methods, for instance interaction with nature. This paper studied the effect of the presence of plants in a work-like environment on the stress level of 30 participants divided equally in a control group and a test group by measuring their heart rate. A factorial analysis of variance and a mul

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44

Hoff, Ellen Torsæter. "The Effect of Restoration Treatments on the Regeneration Pathway in Alpine Seed Plants." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15692.

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Question: How does nutrient addition and seeding affect revegetation of seed plants, and are the effects differing among the stages of the regeneration pathway? Location: Two roads restored in 2002, located in Hjerkinn firing range, in lower alpine zone of Dovrefjell, Norway.Methods: Abundance of species and functional types (dwarf shrubs, forbs and graminoids) in four stages of the regeneration pathway (seed rain, seed bank, field seedlings and established vegetation) was recorded seven years after road reconstruction in treatment plots (with nutrient addition, nutrient + seed addition and no

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45

Badiwe, Mihlali. "Effect of Fusarium oxysporum on the physiological and molecular responses of cowpea plants." The University of the Western Cape, 2017. http://hdl.handle.net/11394/5793.

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Magister Scientiae - MSc (Biotechnology)<br>Cowpea is a tropical, drought-tolerant legume crop that is indigenous to Africa. The crop is of nutritional importance to both animals and humans as part of their diet. Stress to crop plants is defined as any factor that negatively influences the growth and reproduction of a plant below the capabilities of the genotype.

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46

Aslin, Christopher M. "The effect of speciation on cadmium uptake and resultant phytochelatin synthesis in plants." Thesis, Kingston University, 1997. http://eprints.kingston.ac.uk/20602/.

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The pollution of agricultural land with heavy metals occurs as a result of industrial activities such-as metal mining and the application of sewage sludge to the land. Regulations concerning the maximum permissible levels of heavy metals in soils of agricultural use relate only to total concentrations, not to the chemical nature (speciation) of the metal. Bioavailability and toxicity of the metal to the plant are governed by speciation. The overall aim of the research was to investigate heavy metal plant uptake with respect to metal speciation in the growing media. Plants have been shown to po

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47

Hillenbrand-Nowicki, Cathy. "The effect of plants on human perceptions and behavior within an interior atrium." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/41917.

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Plants are frequently used as design components for various types of interior settings. Design professionals may specify plants because of a subconscious awareness of the human need for natural contact, or as in may cases, such as in a "sunspace", because it is traditional to do so. Past studies by behavioral and horticulture researchers have documented human preference for plants, and have shown that plants positively affect people psychologically, but little research has been done to determine whether the use of plants in interior environments can influence human behavior. Interior plantscap

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Deka, Priyanka. "The Effect of Zinc Oxide Nanoparticles on Plants, and on Host-Pathogen Interactions." Diss., North Dakota State University, 2019. https://hdl.handle.net/10365/29270.

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Zinc oxide nanoparticles (ZnO NPs) are a type of engineered nanomaterial that is currently being explored for use in different aspects of agriculture. So far, research on this area is limited to evaluating the phenotypical responses of plants to a high concentration of the NPs which is realistically not feasible in the actual environment. This research aims to investigate the molecular-level interactions between ZnO NPs and plants, together with another significant component of the environment, a fungal plant pathogen. Prior to studying these molecular-level interactions, the uptake of ZnO NPs

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Tickes, Barry, and Mike Ottman. "The Effect of Phosphorus on Alfalfa Yield." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201366.

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Wongareonwanakij, Sathaporn. "Effects of water stress and partial soil-drying on senescence of sunflower plants." Title page, contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09A/09aw872.pdf.

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Bibliography: leaves 98-123. This thesis investigates the symptoms of leaf senescence in response to plant shoot water stress and demonstrates the effect of a non-hydraulic root signal in the senescence response of mature leaves of sunflower. The alleviation of the leaf soluble protein loss rate by excision of the root system in drying soil indicates that this signal originates in roots in dry soil and acts to promote protein loss.

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