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Dissertations / Theses on the topic 'Shoots and roots production'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Nguyen, Khanh Van T. "Roots and hormones: synergistic control of artemisinin production in Artemisia annua L. shoots." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-theses/1105.

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"Artemisinin is a potent antimalarial drug produced in the plant Artemisia annua. Earlier reports suggested that the roots play a key role in artemisinin production; however, it was not clear if other factors actually affected production instead of roots. Here the role of roots and two phytohormones, NAA and BAP, were studied to determine what role each plays in artemisinin production in the plant. Rooted Artemisia annua shoots produced significantly more artemisinin, arteannuin B, and deoxyartemisinin, the end products in the pathway, than unrooted shoots. Although roots do not seem to affect

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2

Wang, Sibo. "Effect of roots on artemisinin and flavonoid production in shoots of Artemisia annua." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-theses/761.

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Artemisinin is a potent antimalarial sesquiterpene lactone produced and stored in the glandular trichomes (GLTs) of Artemisia annua. Although they produce no artemisinin, nor any of the precursor compounds, A. annua roots appear to have a regulatory effect on production of the terpene in leaves. However, more information is needed to define the role of the roots in artemisinin production in the plant. Grafting among three cultivars was used to measure phenotypic responses: SAM, and #15 cultivars both have GLTs, but produce artemisinin at 1.49% and 0.57% DW, respectively; GLS cultivar produces

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3

Van, der Weele Cornelia Maria. "Cell production, expansion and the role of auxin in the response of the root of Arabidopsis thaliana exposed to water deficit /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3025657.

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4

McKinnon, Allan Smith. "On being charismatic brethren : roots and shoots of Pentecostal evangelicalism in Tanzania." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8315/.

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Pentecostal and charismatic expressions of Christian faith among Christian Brethren churches of northern Tanzania are the focus of this study. By tracing the historical developments of the Open Brethren and Pentecostal Movements, the work highlights similarities and distinctives which continue in the present to shape a new rising African Christianity that has been defined as 'pentecostal evangelicalism'. Historical origins in mission endeavour shed light on the indigenous development of these Charismatic Brethren and Pentecostal Evangelicals. This new expression of faith is shown to be well ad

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5

Javed, Muhammad Tariq. "Mechanisms behind pH changes by plant roots and shoots caused by elevated concentration of toxic elements." Doctoral thesis, Stockholms universitet, Botaniska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-64324.

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Toxic elements are present in polluted water from mines, industrial outlets, storm water etc. Wetland plants take up toxic elements and increase the pH of the medium. In this thesis was investigated how the shoots of submerged plants and roots of emergent plants affected the pH of the surrounding water in the presence of free toxic ions. The aim was to clarify the mechanisms by which these plants change the surrounding water pH in the presence of toxic ions. The influence of Elodea canadensis shoots on the pH of the surrounding water was studied in the presence of cadmium (Cd) at low initial p

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6

Khalil, Aveen. "Assessing the responses of wheat roots and shoots to variations in soil water, temperature and CO2 concentration." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/41101/.

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Wheat (Triticum aestivum L.) is one of the most important cereal crops in the world. In order to meet the food requirements of the current trend in population growth, enhancement in wheat production and yield are urgently needed. Water and temperature stress are major constraints to wheat production and subsequently food security in the context of climate change. Plant growth is affected by both above- and belowground environmental conditions and increasing atmospheric CO2 concentrations have been reported to enhance growth and yield of most agricultural crops. The responses of wheat roots and

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7

Shane, Michael William. "Physiological anatomy of the xylem pathway in roots and shoots of Zea mays L, implications for water transport." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/MQ48507.pdf.

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8

Sualang, Denny S. "A comparative study of virulent and avirulent isolates of Chalara elegans on roots and shoots of bean (Phaseolus vulgaris)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24249.pdf.

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9

Babur, John Leland. "Shoot Structure of Boschniakia hookeri Walpers (Orobanchaceae)." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/4931.

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Boschniakia hookeri Walpers has been found to parasitize the roots of Gaultheria shallon Pursh, Arctostaphylos uva-ursi (l.) Spreng, and Vaccinium ovatum Pursh, all members of the Ericaceae. This is the first documented report of the parasitism of Vaccinium ovatum. The subterranean shoot of B. hookeri originates endogenously from the perennial tubercle of the parasite. The shoot has an eustele, composed of collateral vascular bundles, arranged in four composite fronts and separated by four wide 'leaf gaps.' Pits on metaHylem vessels range from nearly circular to laterally elongated. Rll vessel

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10

Ziankevich, Maryia. "Local Roots : Celebrating sustainable methods of food production." Thesis, Umeå universitet, Institutionen Designhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-72781.

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Local Roots is a design of a system where local interest circles and study groups share their knowledge and interest in the context of an outdoor museum. Here, museum visitors can get inspired by a first glimpse into the local culture of traditional food production. This thesis project mainly focuses on the introduction experience to this system, on the outdoor museum plant tour "what's my flavor". Interactive plant audio installations of this tour are placed around the territory of the museum. By touching different parts of a plant, museum visitors trigger information about its nutritional an

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11

Montagu, Kelvin D. "Whole plant response to soil compaction : from field practices to mechanisms /." View thesis View thesis, 1995. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030522.092251/index.html.

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12

Waitt, Jessie Anne. "Post Harvest Transmission of Salmonella enterica to the Roots and Leaves of Butterhead Lettuce Packaged With Intact Roots." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/22078.

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In the United States, illnesses associated with fresh produce are increasing in frequency. While contamination risks are present at every aspect of the farm to fork continuum, post-harvest practices holds the potential for cross-contamination of large amounts of product. Post-harvest contamination risks for hydroponically grown lettuce packaged with intact roots and sold as "living lettuce"" are poorly understood. In this study, transmission of Salmonella enterica serotype Enteritidis to the roots and leaves of butterhead lettuce was studied when contamination was introduced during typical

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13

Aguiar, Eduardo Barreto [UNESP]. "Estudo da poda da mandioca (Manihot esculenta Crantz)." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/99949.

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Made available in DSpace on 2014-06-11T19:30:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-03-28Bitstream added on 2014-06-13T19:00:26Z : No. of bitstreams: 1 aguiar_eb_dr_botfca.pdf: 799841 bytes, checksum: 76febcd3057aea23b05ef3cdca2c3afa (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A poda da parte aérea da mandioca é prática comum nos cultivos comerciais destinados à industrialização. Vem sendo praticada principalmente por possibilitar o controle das plantas infestantes com herbicidas no segundo ciclo vegetativo. Seus efeitos no desenvolvimen

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14

Montagu, Kelvin D. "Whole plant response to soil compaction : from field practices to mechanisms." Thesis, View thesis View thesis, 1995. http://handle.uws.edu.au:8081/1959.7/433.

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This thesis examines the growth response and inter-relationships between shoots and roots of plants grown in compact soil. In the field, two topsoil and two subsoil conditions were created with five vegetable crops sequentially grown. Between 6 and 12% of the root system grew in the compact subsoil, which had a soil strength of 3.1 c.f. 1.9 MPa in the loosened subsoil. Both the root length density (Lv) and the specific root length were lower in the compact subsoil (80% and 30%, respectively). This had no effect on shoot growth when water and nutrients were well supplied. Compensatory root grow

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15

Sani, Hamsawi B. "Production and use of epicormic shoots in clonal propagation of Betula pendula Roth and Acer pseudoplatanus L." Thesis, University of Aberdeen, 1992. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU053061.

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A study of differences between juvenile and mature meristematic tissues of epicormic shoots of <i>Betula pendula</i> Roth and <i>Acer pseudoplatanus</i> L. was made and these differences were used as markers of juvenility and maturity. The percentage of isolated stem sections producing epicormic shoots and the number of shoots forming for both species decreased significantly with increasing tree age and original height of the stem sections on the tree bole; suggesting that the development of epicormic shoots follows the existing model of maturation controlled by the apical meristem. Ease of ro

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16

Aguiar, Eduardo Barreto. "Estudo da poda da mandioca (Manihot esculenta Crantz) /." Botucatu : [s.n.], 2011. http://hdl.handle.net/11449/99949.

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Orientador: Sílvio José Bicudo<br>Banca: Teresa Losada Valle<br>Banca: José Carlos Feltran<br>Banca: Marina Aparecida de Moraes Dallaqua<br>Banca: Ricardo Augusto Dias Kanthack<br>Resumo: A poda da parte aérea da mandioca é prática comum nos cultivos comerciais destinados à industrialização. Vem sendo praticada principalmente por possibilitar o controle das plantas infestantes com herbicidas no segundo ciclo vegetativo. Seus efeitos no desenvolvimento das plantas e na produtividade de raízes de mandioca ainda não são claros e resultados controversos são encontrados na literatura. Com o objetiv

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17

Montagu, Kelvin D., of Western Sydney Hawkesbury University, Faculty of Agriculture and Horticulture, and School of Horticulture. "Whole plant response to soil compaction : from field practices to mechanisms." THESIS_FAH_HOR_Montagu_K.xml, 1995. http://handle.uws.edu.au:8081/1959.7/433.

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This thesis examines the growth response and inter-relationships between shoots and roots of plants grown in compact soil. In the field, two topsoil and two subsoil conditions were created with five vegetable crops sequentially grown. Between 6 and 12% of the root system grew in the compact subsoil, which had a soil strength of 3.1 c.f. 1.9 MPa in the loosened subsoil. Both the root length density (Lv) and the specific root length were lower in the compact subsoil (80% and 30%, respectively). This had no effect on shoot growth when water and nutrients were well supplied. Compensatory root grow

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18

Loewenstein, Nancy J. "Root-to-shoot communication in response to drought : a comparison of four central hardwood tree species /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9823324.

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19

Peacock, Sandra Leslie. "Putting down roots, the emergence of wild plant food production on the Canadian plateau." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ36647.pdf.

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20

Peacock, Sandra Leslie. "Putting down roots : the emergeance of wild plant food production on the Canadian plateau /." Ann Arbor (Mich.) : UMI, 1999. http://catalogue.bnf.fr/ark:/12148/cb37633441d.

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21

Thomas, Elisabeth Chere. "Bioavailability assessment of trace metal contaminants in urban soils and partitioning of zinc, cadmium, lead, nickel, and copper in the roots, shoots, foliage, and seeds of Chenopodium quinoa." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44474.

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This paper presents two studies on urban soils in Vancouver – the first is a case study for assessment of trace metals in urban soils, with particular emphasis on brownfield reclamation and food production. Three single-extraction procedures are evaluated for their usefulness for identifying the bioavailable fractions of trace metals in soil. Plant-available Zn, Cd, Pb, Ni, and Cu were estimated using elemental analysis, pH, organic matter, and soil texture. Specific geochemical factors such as oxidizing conditions and the presence of Fe-, Al-, and Mn-oxides suggest trace metal mobility in

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22

Pool, Joshua Roy. "Growth of four conifer species during establishment and the effects of recurring short-term drought on growth and photosynthetic capacity." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13661.

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Master of Science<br>Department of Horticulture, Forestry, and Recreation Resources<br>Jason Griffin<br>The Midwest and southern Great Plains regions of the United States are known for historic and severe droughts. However, short-term recurring drought events are more common and can limit tree survival in landscape and production settings. The pressure of environmental stress combined with numerous diseases and pests are decimating existing Pinus L. spp. (pine) plantings and driving the effort to identify alternative species. Four species of conifer were grown in a pine bark substrate and subj

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23

Eriksson, Torsten. "Milk production from leguminous forage, roots and potatoes : effects on microbial protein supply and nitrogen efficiency /." Uppsala : Dept. of Animal Nutrition and Management, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/a422.pdf.

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24

Nordh, Nils-Erik. "Long term changes in stand structure and biomass production in short rotation willow coppice /." Uppsala : Dept. of Crop Production Ecology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005120.pdf.

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25

Seveno, Nadine Antoinette. "Phenazine antibiotic production in liquid culture, on surface agar, and on plant roots by Pseudomonas aureofaciens PGS12." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/57155/.

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The growth of P. aureofaciens PGS12 was followed in nutrient broth, on nutrient agar, and on plant roots by monitoring cell numbers, the production of the auto inducer N-acyl- L-hexanoyl homo serine lactone (HHL), and the antibiotic phenazine-l-carboxylic acid (PCA). In nutrient broth, as the growth rate declined, HHL synthesis increased rapidly. Up to 38% more HHL was produced compared to the increase in cell numbers indicating that transcription of the phenazine operon was auto induced. As the bacterial culture entered stationary phase, HHL concentration declined rapidly while PCA concentrat

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26

Finegan, Donal Michael. "The production and removal of anaerobic metabolites from flooded tree roots, with special reference to Pinus contorta." Thesis, University of St Andrews, 1989. http://hdl.handle.net/10023/14496.

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The production and removal of anaerobiotic compounds, principally ethanol from flooded tree roots was examined in lodgepole pine (Pinus contorta) from known provenances. Contrary to earlier suggestions, the gaseous pathway, with ethanol exiting from the tree through the lenticels, removes only a very small proportion (less than 0.2%) of the ethanol generated in the flooded roots. The transpiration stream provides the major route for ethanol transport from the roots. Although the lenticels do not contribute significantly to the removal of ethanol from tree roots, analysis of the gas exiting fro

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27

Wu, Ruomou. "Identification of candidate plant growth promoting endophytes from Echium plantagineum roots." University of the Western Cape, 2018. http://hdl.handle.net/11394/6288.

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Magister Scientiae - MSc (Biotechnology)<br>The yearly increase of global population will result in a greater demand for crop production, but with the climates changes and a lack of available agricultural land it will become increasingly more difficult to provide sufficient crops to feed everyone adequately. Application of the PGPE has proven over the past researches to be able enhance growth of plants via various growth promoting mechanisms. To identify suitable growth promoting bacteria candidate, E. plantagineum plant was used to isolate endophytes from the root after surface steriliz

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28

Birouste, Marine. "Impact des traits racinaires sur les composantes du stockage de carbone : du fonctionnement de l'espèce à celui de la communauté." Thesis, Montpellier, SupAgro, 2014. http://www.theses.fr/2014NSAM0017/document.

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L'objectif principal de cette thèse est de comprendre l'impact de la diversité des racines fines sur les composantes du stockage de carbone à différents niveaux d'organisation. Nous avons fait l'hypothèse que les traits des racines fines, mesurés au niveau de l'espèce ou de la communauté, influencent trois processus majeurs liés aux entrées et sorties de C dans le sol : la production, la respiration et la décomposition racinaires et ont ainsi des conséquences sur les stocks de C du sol. Nos résultats montrent que les traits fonctionnels racinaires sont de bons proxys des processus de décomposi

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29

Mwangi, Nungari. "The power to flourish : unearthing the roots of Kenyan flower producers' market access strategies." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/289438.

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Powering Kenya's agricultural economy, the Kenyan flower industry is prided as an example of successful African integration into global agricultural trade. Export markets are bifurcated due to a marked shift from the Dutch flower auctions and an increase in trade within 'direct markets' which includes supermarkets and florists. While flower production is dominated by a few vertically integrated, large scale flower farms (>100 ha), mid-scale (20-80 hectares) and small-scale (>0.25 hectares) flower farms which are the focus of the thesis, face a unique set of challenges in terms of navigating ac

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LAIBI, SAMI RESHAK. "EFFECT OF ENVIRONMENTAL FACTORS AND APPLIED GROWTH REGULATORS ON GROWTH, CYTOKININ PRODUCTION AND PHYSIOLOGICAL CHANGES OF PEPPERS (CAPSICUM ANNUUM L.) (ARIZONA)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188004.

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Pepper plants (Capsicum annuum L.) were grown in field and a greenhouse in Arizona to determine the effects of water stress, root temperature, and exogenously applied growth regulators on cytokinin production and the resulting growth. Research showed that vegetative plants were significantly higher in cytokinin activity and growth parameters than fruiting plants. Also, in root-pruned fruiting plants, cytokinin activity was less than that of intact fruiting plants. In vegetative plants, the competition between removed sinks and the rest of the shoot was reduced and, hence, more cytokinin came f

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Truskina, Jekaterina. "The role of auxin in cell differentiation in meristems." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEN033/document.

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L'auxine régule la croissance et le développement des plantes grâce aux facteurs de transcription de la famille des "AUXIN RESPONSE FACTOR" (ARF). Chez Arabidopsis thaliana en particulier, ARF5, 6, 7, 8 et 19 activent l'expression de gènes cibles en réponse à l'auxine. Ces cinq ARF activateurs contrôlent de façon plus ou moins redondante des processus divers au cours du développement de la plante, notamment la régulation des croissances au niveau des méristèmes racinaires et aériens ainsi que la formation des racines latérales ou des méristèmes axillaires.Chacun de ces cinq ARF activateurs pré

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32

Vidal, Alix. "The fate of 13C labelled root and shoot litter in soil and earthworm casts : a multidisciplinary approach based on a mesocosm experiment." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066264/document.

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Le sol représente un puits de carbone important, dont les entrées et les sorties sont gouvernées par de nombreux facteurs biotiques et abiotiques. Nous nous intéressons à deux facteurs biotiques essentiels : la qualité de la litière, principale source des MOS; et les vers de terre, ingénieurs clés des sols tempérés. Nous étudions le devenir de parties racinaires et aériennes, marquées au carbone 13, dans le sol et des turricules de Lumbricus terrestris, au cours d'une expérimentation en mésocosmes d'une année. Nous utilisons une approche pluridisciplinaire à différentes échelles spatio-tempore

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Du, Toit Petrus Gerhardus. "The effect of partial rootzone drying on the partitioning of dry matter, carbon, nitrogen and inorganic ions of grapevines." Title page, summary and table of contents only, 2005. http://hdl.handle.net/2440/37954.

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Partial rootzone drying (PRD) is an irrigation management technique designed to reduce water use in grapevines without a decline in yield, thereby increasing water–use efficiency (measured as t/ML) (WUE). The principle of PRD is to keep part of the root system at a constant drying rate to produce soil-derived signals to above–ground plant organs to induce a physiological response. Major PRD effects include a reduced canopy size and greatly increased WUE with possible improvements in fruit quality. Although we have a good understanding of the hormonal physiology of PRD, little is known on the e

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Raut, Yogendra Y. "Sustainable Bioenergy Feedstock Production Using Long-Term (1999-2014) Conservation Reserve Program Land." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu148344789416295.

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Dossin, Mariana Ferneda. "DINÂMICA DO CARBONO- 13C DE RAÍZES E RESÍDUOS DE PARTE AÉREA DE CULTURAS DE VERÃO EM DOIS SOLOS DE VÁRZEA." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4905.

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The use of isotopic techniques has been widely used in studies related to changes in the soil C. The chemical quality of crop residues and the type of management used are considered to be the main factors that control the dynamics of soil C. However, the stabilization of C derived from crop residues is also dependent on soil texture. Therefore, the objectives of these studies were: a) to evaluate the efficiency of repeat pulse labeling technique for the isotopic enrichment of leaves, stems and roots of rice, sorghum and soybeans plants with 13C under greenhouse conditions and b) to evaluate th

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Vidal, Alix. "The fate of 13C labelled root and shoot litter in soil and earthworm casts : a multidisciplinary approach based on a mesocosm experiment." Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066264.

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Le sol représente un puits de carbone important, dont les entrées et les sorties sont gouvernées par de nombreux facteurs biotiques et abiotiques. Nous nous intéressons à deux facteurs biotiques essentiels : la qualité de la litière, principale source des MOS; et les vers de terre, ingénieurs clés des sols tempérés. Nous étudions le devenir de parties racinaires et aériennes, marquées au carbone 13, dans le sol et des turricules de Lumbricus terrestris, au cours d'une expérimentation en mésocosmes d'une année. Nous utilisons une approche pluridisciplinaire à différentes échelles spatio-tempore

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37

Bennett, J. S. "Relationships between carbohydrate supply and reserves and the reproductive growth of grapevines (Vitis vinifera L.)." Lincoln University, 2002. http://hdl.handle.net/10182/1597.

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Viticultural practices such as trunk girdling and shoot topping along with defoliation, shading and node number per vine treatments were used to alter the carbohydrate physiology of mature Chardonnay grapevines growing in the cool climate of Canterbury, New Zealand. The timing of vine defoliation in the season previous to fruiting decreased concentrations of over-wintering carbohydrate reserves (mostly starch) in both the trunks and roots of grapevines. Roots were particularly sensitive, with defoliation as early as 4 weeks after bloom in the previous season reducing starch concentrations to

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Kim, Siti. "The effects of salinity and/or low oxygen on the growth, development and metabolite production of the roots of Eucalyptus camaldulensis Denhn. clones resistant and sensitive to salinity." Thesis, Kim, Siti (1998) The effects of salinity and/or low oxygen on the growth, development and metabolite production of the roots of Eucalyptus camaldulensis Denhn. clones resistant and sensitive to salinity. Honours thesis, Murdoch University, 1998. https://researchrepository.murdoch.edu.au/id/eprint/32809/.

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This project examined the effects of salinity and/or low oxygen on the roots of four Eucalyptus camaldulensis Denhn (River Red Gum) clones resistant (502 and 507) and sensitive (903 and 907) to salinity. The roots were grown aeroponically, with salt water was discharged from solution pumps, and nitrogen gas was utilised to reduce the oxygen concentration inside the aeroponic boxes. There were two main experiments. First, plants were exposed to: 0, 100, 150 and 200mM NaCL Second, plants were exposed to: i) air with no salt (controls), ii) air with 150mM NaCl, iii) low oxygen with no salt, i

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Rathjens, Richard G. "PLANTING DEPTH OF TREES - A SURVEY OF FIELD DEPTH, EFFECT OF DEEP PLANTING, AND REMEDIATION." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1243869972.

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Camargo, Filho Sergio Trabali. "Morfologia radicular de quatro gram?neas forrageiras e sua rela??o com a aquisi??o de nutrientes e produ??o de fitomassa." Universidade Federal Rural do Rio de Janeiro, 2007. https://tede.ufrrj.br/jspui/handle/tede/321.

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Made available in DSpace on 2016-04-26T19:39:33Z (GMT). No. of bitstreams: 1 2007 - Sergio Trabali Camargo Filho.pdf: 4423367 bytes, checksum: 827592ba3f6a9d37da8d784b6ae6ffe8 (MD5) Previous issue date: 2009-12-18<br>The environmental conditions of light, temperature and water availability, along with grazing, are major factors establishing growth and phenology of forage species. The climatic effects imprint dynamics specific to pasture ecosystems, which are generally referred as "seasonality of the pasture." This study was set in an area of Fragiudult soil, located in Serop?dica municipal

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Abou, Rajab Yasmin Joana Monna Verfasser], Dietrich [Akademischer Betreuer] Hertel, Christoph [Gutachter] Leuschner, et al. "Shade trees in cacao agroforestry systems: influence on roots and net primary production / Yasmin Joana Monna Abou Rajab ; Gutachter: Christoph Leuschner, Hermann Behling, Dirk Hölscher, Teja Tscharntke, Holger Kreft ; Betreuer: Dietrich Hertel." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1114497312/34.

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Blume-Werry, Gesche. "The hidden life of plants : fine root dynamics in northern ecosystems." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-124757.

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Fine roots constitute a large part of the primary production in northern (arctic and boreal) ecosystems, and are key players in ecosystem fluxes of water, nutrients and carbon. Data on root dynamics are generally rare, especially so in northern ecosystems. However, those ecosystems undergo the most rapid climatic changes on the planet and a profound understanding of form, function and dynamics of roots in such ecosystems is essential. This thesis aimed to advance our knowledge about fine root dynamics in northern ecosystems, with a focus on fine root phenology in natural plant communities and

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Martins, Lucíola Ellen Calió. "Respostas fisiológicas, metabólicas, estruturais e produtivas do capim-marandu às disponibilidades de fósforo e zinco." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-11022011-091924/.

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As disponibilidades de fósforo e zinco afetam as características estruturais, fisiológicas, metabólicas e produtivas das plantas, com reflexos no estabelecimento e produção de forragem da gramínea forrageira. Objetivou-se identificar e quantificar as alterações nas concentrações foliares de fósforo e zinco, trocas gasosas, concentração do aminoácido triptofano, atividade da enzima fosfatase ácida, área foliar, números de folhas e de perfilhos, sistema radicular e massa de forragem da Brachiaria brizantha cv. Marandu, em resposta ao suprimento de fósforo e zinco. O estudo foi conduzido em casa

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Raveau, Robin. "Contribution au développement d’une filière éco-innovante de phytomanagement de sols pollués par les éléments traces : culture de plantes aromatiques et production d’huiles essentielles The Aromatic Plant Clary Sage Shaped Bacterial Communities in the Roots and in the Trace Element-Contaminated Soil More Than Mycorrhizal Inoculation – A Two-Year Monitoring Field Trial." Thesis, Littoral, 2020. http://www.theses.fr/2020DUNK0580.

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Le phytomanagement compte parmi les méthodes innovantes de gestion des sites et sols pollués en raison de son adéquation avec le développement durable. Pour répondre à la double exigence de performances environnementales et économiques, les phytotechnologies sont désormais combinées à la valorisation de la biomasse produite sur sols pollués. Parmi les filières éco-innovantes et non-alimentaires de valorisation de cette biomasse, la culture de plantes à parfums, aromatiques et médicinales (PPAM) pour la production d’huiles essentielles (HE), substances biosourcées à haute valeur ajoutée, a été

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Bower, Richard John. "Towards an articulation of architecture as a verb : learning from participatory development, subaltern identities and textual values." Thesis, University of Plymouth, 2014. http://hdl.handle.net/10026.1/3220.

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Originating from a disenfranchisement with the contemporary definition and realisation of Westernised architecture as a commodity and product, this thesis seeks to explore alternative examples of positive socio-spatial practice and agency. These alternative spatial practices and methodologies are drawn from participatory and grass-roots development agency in informal settlements and contexts of economic absence, most notably in the global South. This thesis explores whether such examples can be interpreted as practical realisations of key theoretical advocacies for positive social space that h

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Kinsey-West, Victoria Louise. "Roots and Shoots: Assisting young people to envision and act upon sustainable futures." Thesis, 2019. http://hdl.handle.net/2440/121119.

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This item is only available electronically.<br>Short-term thinking is a dominant Western worldview and is reflected in many educational practices, many of which concentrate on the assessment of certain kinds of knowledges. Despite the assumption that education prepares students for their future, it often lacks a long-term vision of what that future may be. Furthermore, conventional education has overlooked fundamental questions of sustainability facing future generations. The future cannot be predicted with certainty; however, it can be said that the current and looming ecological crises will

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Hsu, Hsiao-Wei, and 許小薇. "Implementation and Evaluation Research on Program of Roots and Shoots Service Learning in Hualien Girls’ Senior High School." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/mwceks.

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碩士<br>國立東華大學<br>教育研究所<br>96<br>This research explored the performance outcome of 10th grade students of Hualien Girls’ Senior High after attending a semester program of Roots and Shoots service learning. The research was a quasi-experimental with pre-post test design and the number of students involved were 420. The research tools include a service learning assessment, an environmental literacy assessment, university entrance aptitude test, academic achievement and virtue performance score. The analysis attempted to detect the degree of impact of service learning project on various perspective

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張耕碩. "Exploring the Status of Junior High School and Elementary School Teachers’ Participation in the Roots & Shoots Program." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/21937456142482320036.

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碩士<br>國立臺灣師範大學<br>環境教育研究所<br>98<br>Jane Goodall, one of the world’s leading primatologists and conservationists, founded Jane Goodall Institute in 1977. From 1991, she started to spread the ideas of “Roots & Shoots program” through her speeches all over the world. This Institute established a branch in Taiwan in 1998, Jane Goodall Institute- Republic of China, which assisted to develop Roots & Shoots program. JGI-ROC encourages young people in Taiwan to form the Roots & Shoots groups and care for their environment, communities and different kinds of animals. The school teachers who usually pla

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Yang, Yun-Wei, and 楊蕓瑋. "Comparative Analyses of Shoots and Roots Transcriptomics of Two Rice Seedlings (TNG67 vs. TCN1) under Cold or Salt Stress and Subsequent Recovery." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/74696081763011821462.

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博士<br>國立臺灣大學<br>農藝學研究所<br>103<br>Abstract Climate changes and environmental stresses become severe over the past few decades. In particular, different abiotic stresses reduce the yield and quality of crop, leading to the threaten of global food security. With the deciphering of rice genome and advancement of functional genomics technology, researchers were able to gradually reveal the mechanism of abiotic stress tolerance mechanisms in rice and to identify essential genes for breeding to improve stress tolerance. In this thesis, we used TNG67 (japonica) and TCN1 (indica) rice cultivars with c

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Wallis, Jacqueline Tanya. "Recirculating hydroponic systems : evaluating cuttings yield and rooting ability of cold tolerant eucalyptus hybrids." Thesis, 2004. http://hdl.handle.net/10413/4347.

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In South Africa, clonal forestry of Eucalyptus and its hybrids has been implemented to increase the productivity on existing forestry lands and marginal sites and to facilitate the production of desired fibre types for timber processing operations. The cold-tolerant Eucalyptus grandis x E. nitens hybrids have produced consistently high yields, and are propagated clonally with limited success via a macro-cutting system currently in use for other hybrid species. The heart of vegetative propagation operations is the clonal hedge and its management, and nutrition in particular, is an important ele

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