Log in

Relevant bibliographies by topics / Plant Physiology / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Plant Physiology.

Dissertations / Theses on the topic 'Plant Physiology'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Plant Physiology.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Lucas, W. J. "Plant physiology : transport processes in plants /." Title page, preface and contents only, 1989. http://web4.library.adelaide.edu.au/theses/09SD/09sdl933.pdf.

Full text

Abstract:

Thesis (D. Sc.)--Faculty of Science, University of Adelaide, 1990.<br>Published works [representing] original research conducted during the various phases of [his] academic development--Pref. Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

2

Liu, Xing, and s3072856@student rmit edu au. "Electrical Impedance Spectroscopy Applied in Plant Physiology Studies." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080428.092529.

Full text

Abstract:

Electrical Impedance Spectroscopy (EIS) is a relatively new method applied to food quality assessment. EIS allows relatively inexpensive assessment, is fast, easy to operate and non-invasive. It has been adopted for investigation of fundamental electrical properties of plant tissues. Although the applications of EIS for food quality determination have been reported previously, the analytical relationships between electrical impedance properties and quality criteria have not yet been fully developed. Further exploration is thus important in acquiring more data on electrical impedance characteri

APA, Harvard, Vancouver, ISO, and other styles

3

Obaid, Wael. "The impact of silver nanoparticles on plant physiology." Thesis, University of Essex, 2016. http://repository.essex.ac.uk/16747/.

Full text

Abstract:

Engineered nanoparticles (ENPs) are increasingly being exploited in a whole range of applications and products due to their novel physicochemistry. Hence it is inevitable that ENPs will enter the environment at an increasing rate over the coming years. The consequential impact following interaction between ENPs with plants and soil microbial communities is of great concern given that they play fundamental roles in the environment and food production. In this study, the impact of capped silver nanoparticles (cAg NPs) on terrestrial (Arabidopsis thaliana and Vicia faba) and aquatic (Lemna minor)

APA, Harvard, Vancouver, ISO, and other styles

4

Dilks, Teresa. "Plant-aphid interaction : local and systemic effects on plant physiology and gene expression." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5824/.

Full text

Abstract:

Aphids are economically important pests of glasshouse and temperate crops. By investigating the effects of aphid feeding on plant performance and by understanding the host-pest relationship, novel defence strategies can be devised. The effect of \(Rhopalosiphum\) \(padi\) (the bird cherry-oat aphid) feeding on young \(Hordeum\) \(vulgare\) (barley) plants was investigated. Particular emphasis was placed on changes within the sieve element (SE) because aphids are phloem-feeding insects. Aphid infestation significantly reduced host plant growth rate. High performance liquid chromatography showed

APA, Harvard, Vancouver, ISO, and other styles

5

au, A. Mccomb@murdoch edu, and Arthur James McComb. "Plants and the environment." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20070828.135211.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Shipman, Patrick Daniel. "Plant patterns." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/290129.

Full text

Abstract:

The hexagons on a pineapple contrast with the ribs observed, for example, on pumpkins or saguaro cacti. This dissertation demonstrates how these various configurations, and also the related patterns of phyllotaxis (the arrangement of leaves into whorls or spirals) can be understood as the energy-minimizing buckling pattern of a compressed shell (the plant's tunica) on an elastic foundation. The key new idea is that the elastic energy is minimized by special triads or sequences of triads of periodic deformations whose local wavevectors add to zero. Although triad configurations arise from a var

APA, Harvard, Vancouver, ISO, and other styles

7

Wright, Philip Richard. "Effects of paclobutrazol on growth and physiology of salad tomatoes (Lycopersicon esculentum Miller)." Thesis, The University of Sydney, 1990. https://hdl.handle.net/2123/26272.

Full text

Abstract:

Salad tomatoes represent an important vegetable crop within Australia. However, the costs of both materials and labour involved in providing this crop with artificial support, in the form of trellising or staking, is high. This project examined the feasibility of using the plant growth regulator, paclobutrazol, as an aid to crop grown without trellising or staking under coastal conditions. Initially a rate of 4 mg plant-, applied as a soil drench 1, 15, 29, 47 or 57 days after transplanting were compared with non-treated plants under glasshouse conditions. The application of paclobutrazol 1

APA, Harvard, Vancouver, ISO, and other styles

8

Butler, Jamie Andrew. "Data-based mechanistic modelling of systems in plant physiology." Thesis, Lancaster University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369469.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Atherton, Jon Mark. "Multiscale remote sensing of plant physiology and carbon uptake." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6219.

Full text

Abstract:

This study investigated the use of optical remote sensing for estimating leaf and canopy scale light use efficiency (LUE) and carbon exchange. In addition, a new leaf level model capable of predicting dynamic changes in apparent reflectance due to chlorophyll fluorescence was developed. A leaf level study was conducted to assess the applicability of passive remote sensing as a tool to measure the reduction, and the subsequent recovery, of photosynthetic efficiency during the weeks following transplantation. Spectral data were collected on newly planted saplings for a period of 8 weeks, as well

APA, Harvard, Vancouver, ISO, and other styles

10

Hjellström, Mattias. "Drought Stress Signal Transduction by the HD-Zip Transcription Factors ATHB6 and ATHB7." Doctoral thesis, Uppsala University, Physiological Botany, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1857.

Full text

Abstract:

<p>This work describes the regulation of drought stress responses in <i>Arabidopsis thaliana</i> and adresses the roles of the homeodomain-leucine zipper (HD-Zip) transcription factors in this regulation. The characteristics of <i>ATHB6</i> and <i>ATHB7</i>, two genes encoding class I HD-Zip transcription factors were analysed. </p><p>Expression of <i>ATHB6</i> and <i>ATHB7</i> was transcriptionally activated in plants subjected to water deficit or exogenous treatment with abscisic acid (ABA).</p><p>Transgenic plants constitutively expressing the <i>ATHB7</i> gene displayed a delayed elongatio

APA, Harvard, Vancouver, ISO, and other styles

11

Wied, Anna. "Conspecific nurse effects and the evolution of monocarpy in plants /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9841363.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Carlsbecker, Annelie. "MADS-Box Gene Phylogeny and the Evolution of Plant Form : Characterisation of a Family of Regulators of Reproductive Development from the Conifer Norway Spruce, Picea abies." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2002. http://publications.uu.se/theses/91-554-5326-0/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Martinez-Diaz, Gerardo 1959. "Allelopathy of purple nutsedge (Cyperus rotundus L.) on cotton (Gossypium)." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/282406.

Full text

Abstract:

The effects of extracts from purple nutsedge tubers were determined on the germination, growth, root leakage, water status, and photosynthesis of an Upland cotton, DPL 5415, and a Pima cotton, Pima S-7. Tubers extracts inhibited secondary root growth of seedlings more than primary root growth. At 500 ppmw, primary root growth was inhibited 44 percent whereas inhibition of secondary root growth was 64 percent. Non-polar extracts were more inhibitory to growth than polar extracts. Cotton plants grown in soil treated with hexane extracts of tubers containing non-polar allelopathic substances also

APA, Harvard, Vancouver, ISO, and other styles

14

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

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

15

Augusti, Angela. "Monitoring climate and plant physiology using deuterium isotopomers of carbohydrates." Doctoral thesis, Umeå : Umeå Plant Science Centre, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Yang, Xiaomei Sibley Jeffrey Lynn. "Effects of a nonionic surfactant on plant growth and physiology." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Horticulture/Dissertation/Yang_Xiaomei_2.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Liu, Xiaochuan. "The cell biology and physiology of cytoplasmic male sterility in Petunia hybrida." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328541.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Wadey, P. "The physiology of copper tolerance in Mimulus guttatus." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233878.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Strange, J. "The physiology of copper tolerance in Mimulus guttatus." Thesis, University of Exeter, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383346.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Louw, Merika. "Propagation and stress physiology of selected Subtropical Thicket species : towards increasing biodiversity at rehabilitation sites." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1021115.

Full text

Abstract:

Sundays Thicket and Spekboomveld vegetation in the Eastern Cape have experienced intensive and extensive degradation due to over-browsing by domestic stock. The Subtropical Thicket Restoration Project aims to take advantage of the high carbon sequestration potential of Portulacaria afra (Spekboom) and other Thicket species, to rehabilitate degraded Thicket by restoring biodiversity and ecosystem services, create job opportunities and socio-economic upliftment in local communities, and promote the trade of carbon credits generated by planting and „farming‟ with Spekboom truncheons, rather than

APA, Harvard, Vancouver, ISO, and other styles

21

Ade-Ademilua, Omobolanle Elizabeth. "Plastochron index - an indicator of plant structure and function a case study using Pisum sativum L." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1003751.

Full text

Abstract:

The use of chronological age for example, using days after sowing (DAS), or days after germination (DAG) as a time variable may result in the inherent variability between plants resulting in differences which can be large enough to obscure subtle developmental trends that become evident among plants sown at the same time. An alternative to DAS or DAG is the plastochron index (PI), first used by Erickson and Michelini (1957) as a morphological time scale and numerical index; which to according to the authors suggested and represented a more accurate reflection of the developmental status of a p

APA, Harvard, Vancouver, ISO, and other styles

22

Choe, Sunghwa. "Genetics and biology of Arabidopsis brassinosteroid dwarf mutants." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/298758.

Full text

Abstract:

Brassinosteroids (BRs) have long been known to be effective in plant growth promotion. However, definitive evidence of BR's role in growth stimulation has remained unclear. Recently, genetic approaches using BR-deficient dwarf(dwf) mutants have begun to unravel the role of BRs in plant growth and development. BR dwarf mutants are characterized by multiple growth alterations: robust stem, reduced fertility, prolonged life cycle, dark-green appearance, round and curled leaves, and when grown in the dark, short hypocotyls and expanded cotyledons. Genetic analysis of the dwf mutants defined eight

APA, Harvard, Vancouver, ISO, and other styles

23

Norris, Susan Renee 1969. "Genetic dissection of phytoene desaturation in Arabidopsis thaliana." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/282388.

Full text

Abstract:

Carotenoids are C₄₀ tetraterpenoids synthesized by nuclear-encoded, multi-enzyme complexes located in the plastids of higher plants. In order to further understand the components and mechanisms involved in carotenoid biosynthesis, our laboratory has identified Arabidopsis thaliana mutants that disrupt this pathway. Here, I report the identification and characterization of three non-allelic albino mutations, pds1, pds2, and pds3 (pds = b phytoene desaturation), that are disrupted in phytoene desaturation, an early step in carotenoid biosynthesis. pds1 and pds2 have been more thoroughly characte

APA, Harvard, Vancouver, ISO, and other styles

24

Davidson, Sarah Rosemary. "Effects of ozone and water stress on plant growth and physiology." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46273.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Stoll, Manfred. "Effects of partial rootzone drying on grapevine physiology and fruit quality." Title page, contents and summary only, 2000. http://hdl.handle.net/2440/37734.

Full text

Abstract:

Growth, productivity and fruit quality of grapevines are closely linked to soil water availability. Withholding of water for any length of time results in slowed growth. If drought continues yield may be lost. Vines can be manipulated to stimulate early defence mechanisms by decreasing soil water availability. By using an irrigation technique, which allows for separate zones with different soil moisture status, it is possible to stimulate response mechanisms of the root system which are normally related to water stress. The difficulty of separating 'wet' and 'dry' zones was initially overcome

APA, Harvard, Vancouver, ISO, and other styles

26

Lan, Zhiyi. "The role of DELLA proteins in plant-insect interactions." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119706.

Full text

Abstract:

Jasmonates (JAs) play a major role in plant defense against herbivores while some caterpillar species use effectors in their labial saliva to suppress the induction of JA-mediated defense responses. On the other hand, activation of plant defense is associated with slowed plant growth which is controlled by gibberellins (GA) and growth repressor DELLA proteins. Recent studies have shown that DELLA proteins play an important role in plant stress response and are involved in the crosstalk between JA and GA pathways. However, the role of DELLA proteins in plant-insect interactions remains unclear.

APA, Harvard, Vancouver, ISO, and other styles

27

Gribble, Karleen Dawn. "Towards an understanding of the physiological abnormality of tissue cultured plants known as vitrification /." [Richmond, N.S.W.] : Horticulture, University of Western Sydney, Hawkesbury, 1999. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030513.144109/index.html.

Full text

Abstract:

Thesis (Ph.D.) -- University of Western Sydney, Hawkesbury, 1999.<br>Thesis submitted for the degree of Doctor of Philosophy. Spine title: Towards an understanding of vitrification in tissue cultured plants. Includes bibliographical references (leaves 175-203).

APA, Harvard, Vancouver, ISO, and other styles

28

Hanes, Scott Burton Wright Amy Noelle. "Organic matter type affects growth and physiology of native plants planted above-grade." Auburn, Ala, 2009. http://hdl.handle.net/10415/1895.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Le, Fevre Ruth Elizabeth. "Phytate and plant stress responses." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708218.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Mohamed, Fatheya. "Mineral analysis and proximate composition of leaves of (Brassica oleracea var. acephala) in response to boron application in pot experiments." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2793.

Full text

Abstract:

Thesis (MTech (Agriculture)--Cape Peninsula University of Technology, 2018.<br>Choumollier (narrow-stem kale) (Brassica oleracea, L.) has been progressively used in recent years as a supplementary forage harvest in many countries with a temperate climate. Boron (B) and calcium (Ca) are the two most important elements for supporting plant structure and function of plasma membranes. Boron nutrition is vital for obtaining high quality yields in vegetables. The main objective of this study was to evaluate the extent to which boric acid concentration can affect growth parameters (plant height, leaf

APA, Harvard, Vancouver, ISO, and other styles

31

Campanella, James Joseph. "A study of IAA conjugate physiology in Arabidopsis thaliana." Case Western Reserve University School of Graduate Studies / OhioLINK, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=case1062083413.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Wilkinson, Thomas Lees. "Host plant utilization by the pea aphid (Acyrthosiphon pisum) symbiosis." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359556.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Larsson, John. "Cyanobacterial genome evolution subsequent to domestication by a plant (Azolla)." Doctoral thesis, Stockholms universitet, Botaniska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-56851.

Full text

Abstract:

Cyanobacteria are an ancient and globally distributed group of photosynthetic prokaryotes including species capable of fixing atmospheric dinitrogen (N2) into biologically available ammonia via the enzyme complex nitrogenase. The ability to form symbiotic interactions with eukaryotic hosts is a notable feature of cyanobacteria and one which, via an ancient endosymbiotic event, led to the evolution of chloroplasts and eventually to the plant dominated biosphere of the globe. Some cyanobacteria are still symbiotically competent and form symbiotic associations with eukaryotes ranging from unicell

APA, Harvard, Vancouver, ISO, and other styles

34

Viger, Maud. "Physiology, genetics and genomics of drought adaptation in Populus." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/202473/.

Full text

Abstract:

As the demand for energy rises, Populus species are increasingly grown as bioenergy crops. Meanwhile, due to global change, predictions indicate that summer droughts will increase in frequency and intensity over Europe. This study was carried out to evaluate the adaptation to drought in Populus, at different levels: genetic, genomics and physiology. Forests trees such as poplar are very important ecologically and economically but the Populus genus is known to be drought sensitive. Consequently, it is essential to understand drought response and tolerance for those trees. Two populations of pop

APA, Harvard, Vancouver, ISO, and other styles

35

Carter, Jacob. "Tamarix ramosissima whole plant and leaf level physiological response to increasing salinity." Thesis, Kansas State University, 2010. http://hdl.handle.net/2097/4379.

Full text

Abstract:

Master of Science<br>Department of Biology<br>Jesse B. Nippert<br>In 1902, President Theodore Roosevelt signed and enacted the Reclamation Act, which would fundamentally alter the lowland hydrology of the arid southwest over the next century. Flow regulations, groundwater pumping, damming, and river channel changes have led to decreases in water table heights and periodic overbank flooding, and subsequently, increased soil salinity in the arid Southwest. During this period, native riparian tree species have declined significantly and an invasive tree species, Tamarix ramosissima, has increased

APA, Harvard, Vancouver, ISO, and other styles

36

Reyes-Sanchez, Jose 1958. "Biophysical modeling of Agave pacifica under controlled environments." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/282475.

Full text

Abstract:

Biophysical models were developed for biomass accumulation, transpiration and carbon dioxide (CO₂) assimilation of Agave pacifica as functions of air CO₂ concentration, photosynthetic photon flux (PPF) and irrigation interval. Parameter estimation and validation were performed for the Gompertz's equation for biomass accumulation and for the Penman-Monteith equation for transpiration. A new biophysical model for CO₂ assimilation is proposed consisting of four components: stomatal opening and CO₂ fixation; malic acid accumulation; malic acid depletion; and photosynthetic carbon assimilation. The

APA, Harvard, Vancouver, ISO, and other styles

37

Irwin, Judith Ann. "Male competition and outcrossing rate in a hermaphrodite plant." Thesis, University of St Andrews, 1990. http://hdl.handle.net/10023/14400.

Full text

Abstract:

The principal aim of the research presented in this thesis was to investigate factors affecting the "male competition" component of sexual selection in the hermaphroditic species, Senecio vulgaris. As male reproductive function consists of attracting pollinators and the success of pollen in contributing genes to the next generation, sexual selection will act on both the sporophytic and gametophytic stages of the life cycle. The potential for, and consequences of male competition were analysed at both pre- and post-pollination stages. A comparison of the relative attractiveness of the radiate a

APA, Harvard, Vancouver, ISO, and other styles

38

Gresshoff, Peter M. "Plant genetic control of nodulation in legumes." Thesis, Canberra, ACT : The Australian National University, 1988. http://hdl.handle.net/1885/140284.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Österås, Ann Helén. "Interactions between calcium and heavy metals in Norway spruce : Accumulation and binding of metals in wood and bark." Doctoral thesis, Stockholm University, Department of Botany, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-81.

Full text

Abstract:

<p>Waste products from the forest industry are to be spread in forests in Sweden to counteract nutrient depletion due to whole tree harvesting. This may increase the bioavailability of calcium (Ca) and heavy metals, such as cadmium (Cd), copper (Cu) and zinc (Zn) in forest soils. Heavy metals, like Cd, have already been enriched in forest soils in Sweden, due to deposition of air pollutions, and acidification of forest soils has increased the bioavailability of toxic metals for plant uptake. Changes in the bioavailability of metals may be reflected in altered accumulation of Ca and heavy metal

APA, Harvard, Vancouver, ISO, and other styles

40

Lopez, Tapia Francisco Javier. "A general approach to the total synthesis of yeuhchukene and its analogues : a novel anti-implantation agent." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29013.

Full text

Abstract:

This thesis concerns a general approach to the total synthesis of yuehchukene 2 and its analogues. Yuehchukene has a potent anti-implantation activity. It also lacks the estrogenic side effect of most compounds with similar biological activity. However, it is somewhat unstable and this could bring some problems when administered to humans. Development of a versatile synthesis of yuehchukene capable of producing a variety of analogous structures in order to fully exploit the pharmacological properties of this novel molecular system and/or to make a more stable product without losing its biolog

APA, Harvard, Vancouver, ISO, and other styles

41

Gagnon, Diane C. "Neem products for the control of the European corn borer, Ostrinia nubilalis (Hubner), in sweet corn, Zea mays (L.)." Thesis, University of Ottawa (Canada), 1992. http://hdl.handle.net/10393/7703.

Full text

Abstract:

The use of neem products to control the European corn borer, Ostrinia nubilalis (Hubner), in sweet corn was investigated. Three years of field studies were conducted comparing various foliar-spray applications of a neem seed kernel extract (NSKE), azadirachtin (AZA, the active ingredient of neem extracts), and Ambush (a synthetic pyrethroid). The results included: (1) NSKE sprayed prior to artificial infestation of the corn plants provided excellent protection (comparable to Ambush) against borer damage and greatly reduced larval populations. (2) Neem extract formulations from Safer Ltd. were

APA, Harvard, Vancouver, ISO, and other styles

42

Phelps, Debbie. "Isoflavonoid induction and nitrogen assimilation in AM colonized red clover." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26744.

Full text

Abstract:

This study postulates that the symbiosis between red clover, Trifolium pratense L., and the arbuscular mycorrhizal (AM) fungus, Glomus intraradices Schenck & Smith, enhances secondary phenolic metabolism and nitrogen assimilation. To test this hypothesis, the four objectives set forth were to determine the impact of AM colonization and/or rhizobial inoculation in red clover on the: (1) growth parameters; (2) nitrogen assimilation, via the activity of glutamine synthetase (GS, E.C. 6.3.1.2), total N content and soluble protein concentration; (3) contents of isoflavonoids (e.g. genistein, daid

APA, Harvard, Vancouver, ISO, and other styles

43

Mühlenbock, Per. "Genetic and Molecular Mechanisms Controlling Reactive Oxygen Species and Hormonal Signalling of Cell Death in Response to Environmental Stresses in Arabidopsis thaliana." Doctoral thesis, Stockholms universitet, Botaniska institutionen, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1358.

Full text

Abstract:

In the present work the regulation of environmentally induced cell death and signaling of systemic acquired acclimation (SAA) in Arabidopsis thaliana is characterized. We used the lesion simulating disease1 (lsd1) mutant as a model system that is deregulated in light acclimation and programmed cell death (PCD). In this system we identify that redox status controlling SAA and cell death is controlled by the genes LSD1, EDS1, EIN2 and PAD4 which regulate cellular homeostasis of salicylic acid (SA), ethylene (ET), auxin (IAA) and reactive oxygen species (ROS). Furthermore we propose that the role

APA, Harvard, Vancouver, ISO, and other styles

44

He, Xuefeng. "Effect of class IId Bacteriocins: thuricin 17 and bacthuricin F4 on crops growth under optimal and abiotic stress conditions." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66900.

Full text

Abstract:

ABSTRACT Bacteriocins are small peptides, produced by many bacteria, which have adverse effects on microorganisms closely related to the producer strain. Two new Class IId bacteriocins, thuricin 17 and bacthuriocin F4 were isolated from plant growth promoting rhizobia (PGPR). Initial studies showed that both the bacteriocins can promote soybean growth. My experimental results demonstrated that these two bacteriocins promoted germination and emergence of corn, soybean, canola and wheat, but had no effect on barley, when compared with the control under optimal growth conditions

APA, Harvard, Vancouver, ISO, and other styles

45

Vunnam, Rakesh. "Antioxidant capacity and polyphenolic content of potato tubers are affected by cultivar and hormetic treatment." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97159.

Full text

Abstract:

This thesis involved an investigation of potato (Solanum tuberosum L.) tuber antioxidant capacity, particularly the phytonutrients vitamin C and polyphenolics. Tubers of 12 Canadian-grown and 5 foreign cultivars were screened for antioxidants qualitatively and quantitatively following 1 and 7 months of storage (5±1 oC). Significant differences were seen in quality and quantity of tuber antioxidants (including vitamin C and polyphenolics) between cultivars, storage intervals, and tuber tissues (skin, cortex, and pith). A potato microtuber model system was developed to test the effects of hormes

APA, Harvard, Vancouver, ISO, and other styles

46

Colton-Gagnon, Katia. "Characterization of Brachypodium distachyon as a grass model for reserach in freezing tolerance." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107811.

Full text

Abstract:

Long exposure to low non-freezing temperatures accelerates flowering and triggers cold acclimation in winter wheat and barley. Cold tolerance is a complex but important trait that influences yield considerably. Brachypodium distachyon is an annual temperate wild grass species and is a powerful model to study grass biology, but the capacity of this plant to tolerate freezing is unknown. An integrated approach involving double ridge formation, final leaf number, and osmoprotectant content was used to confirm the growth habit and freezing tolerance ability of seven diploid Brachypodium distachyon

APA, Harvard, Vancouver, ISO, and other styles

47

Sasaki, Taeko. "Identification and characterization of genes involved in the biogenesis of small RNAs in rice, «Oryza sativa L»." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18764.

Full text

Abstract:

T-DNA and chemically mutagenized rice lines were used in a reverse genetic approach to investigate the role(s) of small RNA in rice, Oryza sativa L. T-DNA tagged lines of the RNA-dependent RNA polymerase 6 (Osrdr6) were homozygous lethal. However, a T-DNA line with disrupted expression of the gene encoding Suppressor of Gene Silencing3 (SGS3) and, also, a chemically mutagenized line with a single nucleotide polymorphism (SNP) in the intronic 2 region of this gene were characterized. Homozygous Ossgs3 mutant lines showed abnormal leaf curling. This suggests that these lines are hyperresponsive

APA, Harvard, Vancouver, ISO, and other styles

48

Bourgault, Maryse. "Legume production in semi-arid areas: comparative study of the physiology of drought tolerance in common bean («Phaseolus vulgaris L.») and mungbean «(Vigna radiata (L.) Wilczek)»." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40664.

Full text

Abstract:

Context: Approximately one billion people live in semi-arid and arid regions, and of these about 40% live on less than a dollar a day. Legumes crops are an important component of sustainable agriculture, but they are often grown under intermittent or terminal droughts. Thus, improving drought tolerance in legumes has the potential to improve food security and sustainability of agricultural systems. Objective: This study compares the response of two legume crops, common bean (Phaseolus vulgaris L.) and mungbean (Vigna radiata (L.) Wilczek), to water stress conditions under field and contro

APA, Harvard, Vancouver, ISO, and other styles

49

Lachapelle, Maude. "Modelling the effect of preharvest climate conditions on the incidence of two postharvest physiological disorders of "Honeycrisp" apple." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107907.

Full text

Abstract:

'Honeycrisp', a new apple cultivar, has high susceptibility to physiological disorders, including soft scald (SS) and soggy breakdown (SB). An important factor inducing these disorders is cool weather conditions at the end of the growing season. 'Honeycrisp' apples were harvested in Ontario (three sites), Québec (two sites) and in Nova Scotia (one site), in 2009 and 2010, in addition to data from Ontario (four sites), from 2002 to 2006. Analyses were made to link fruit quality to the weather at each site. A combination of dry conditions (for phenological stages BBCH 71-75), and cool conditions

APA, Harvard, Vancouver, ISO, and other styles

50

Dias, Keith. "Proteomic comparison of «Arabidopsis thaliana» under high and low nitrogen fertilization." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110688.

Full text

Abstract:

Nitrogen (N) and the levels of N in plants play a vital role in the physiology, regulating their development and metabolism. We grew Arabidopsis thaliana under agronomic conditions at low (6 mg N/L) and high (106 mg N/L) N fertilizer regimes, maintaining a constant NO3-N to NH4-N ratio (3:1). Using a shotgun mass spectrometry proteomics approach, multi-dimensional protein identification technology (MudPIT), we characterized a total of 2134 reproducibly identified proteins shared between the two N treatments. By statistical analysis in both treatments we found 37 differentially expressed protei

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!