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Tesi sul tema "Flowering"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Wilson, Dale 1972. "Early-flowering mutants of a late-flowering ecotype of Arabidopsis thaliana." Monash University, Dept. of Biological Sciences, 2001. http://arrow.monash.edu.au/hdl/1959.1/8976.

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2

Petrenko, Olga. "Simulation of flowering plants." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0067/document.

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Les plantes ont longtemps intrigué les scientifiques, qui, avec son importance vitale pour la planète, sa beauté et l'énorme quantité de formes ayant, les rend un sujet attrayant pour la recherche. Un aspect intéressant est la création d'un modèle virtuel capable de simuler de vraies plantes avec un degré élevé de précision. L'objectif de notre étude est les plantes à fleurs, qui jouent un rôle énorme dans notre vie de fins nutritives et médicales à l'embellissement de l'environnement . L'obtention d'un modèle géométrique exacte d'une fleur est très utile, car elle joue un rôle important dans

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3

Suzuki, Mahoro. "Relationship between flowering schedule and reproductive success in two sequentially flowering Vaccinium species(Ericaceae)." 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/150052.

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4

Wilson, Ann Margaret. "Reproductive allocation in flowering plants." Thesis, University of Plymouth, 1986. http://hdl.handle.net/10026.1/2206.

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The proportion of resources which an organism devotes to reproduction has been assumed to be of great evolutionary and ecological significance. However, in previous studies of reproductive allocation (RA) in plants, there has been no consensus of precisely what is being measured nor how it should be measured. An attempt was made to determine the 'best' method of measuring RA and then apply this to a range of species with differing ecological strategies. Under nutrient stress caused by a low N treatment Taraxacum officinale and Poa annua were found to maintain their RA despite up to 4 fold redu

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5

Gerber, Audrey I. (Audrey Inga). "Inflorescence initiation and development, and the manipulation therof [sic], in selected cultivars of the genus Protea." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51799.

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Thesis (PhD(Agric))--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: Little is understood regarding flowering in the genus Protea. The information available on inflorescence initiation and development in the family Proteaceae was reviewed and discussed. A number of experiments were conducted to investigate inflorescence initiation and development, and their manipulation for commercial production, in selected Protea cultivars, in the Western Cape, South Africa (33°S, Protea species can be allocated into groups according to similar times of flower initiation and of harvest. The sta

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6

Haliday, Karen Jane. "Phytochromes and the photocontrol of flowering." Thesis, University of Leicester, 1996. http://hdl.handle.net/2381/35462.

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Analysis of photomorphogenic mutants and transgenic plants provides further insights into the roles of individual phytochrome species. The presence of a significant early-flowering response to low R/FR ratio has been reveled in Arabidopsis phyB mutants, that are also homozygous for a late-flowering mutation. This firstly, implicates at least one other novel phytochrome species, in addition to phytochrome B, in the low R/FR ratio-mediated early- flowering response. Secondly, identifies features that are likely to represent a loss-of-function mutant in this novel phytochrome species. Examination

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7

Kurokura, Takeshi. "Molecular physiology of flowering in Fragaria vesca." Thesis, University of Reading, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511675.

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8

Loeppky, Heather Ann. "Flowering and seed production in meadow bromegrass." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ43515.pdf.

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9

Ling, Adrain C. K. "Molecular study of flowering in Fragaria vesca." Thesis, University of Reading, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553040.

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Flowering plants exhibit a particular pattern of seasonal cycle to suit the changing seasons for maximum survival and reproduction success. Temperature plays a key role in controlling flowering time of many plants. Fragaria vesca f. vesca is seasonal flowering and runnering. While it is not known to require vernalisation to flower, cool and cold temperatures affect its vegetative and reproductive development. An F. vesca VIN3-like (FvVIL) mRNA was isolated and characterised. It has a PHO finger domain, a FNIII domain and a VIO domain, which characterise the VIN3 family genes of Arabidopsis tha

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10

Xi, Zhenxiang. "Phylogenomics of the Flowering Plant Clade Malpighiales." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10661.

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The angiosperm order Malpighiales includes \(\sim 16,000\) species and constitutes up to 40% of the understory tree diversity in tropical rain forests. Despite remarkable progress in angiosperm phylogenetics during the last 20 years, relationships within Malpighiales have remained poorly resolved, possibly due to its rapid rise during the mid-Cretaceous. Using phylogenomic approaches, including analyses of 82 plastid genes from 58 species, we identified 12 new clades in Malpighiales and substantially increased resolution along the backbone (Chapter 1). This greatly improved phylogeny revealed

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11

Clarke, Jonathan H. "Genetic analysis of flowering time in Arabidopsis." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358334.

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12

Yehia, Taher A. "Characterization and prediction of flowering in apple." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260667.

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13

Richards, Julie. "Phosphate and the control of flowering time." Thesis, University of York, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415933.

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14

Charles, David. "The molecular basis of flowering time regulation." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/29371.

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Flowering is controlled by a series of signals integrated to regulate gene expression and coordinate development. The flowering hormone FLOWERING LOCUS T (FT) positively regulates flowering while the highly homologous TERMINAL FLOWERING 1 (TFL1) negatively regulates flowering. FT is recruited to the promoter in a complex with FD, a transcription factor belonging to the bZIP family, and 14-3-3. This complex is called flowering activating complex (FAC). Here TFL1 is shown to form a complex with 14-3-3 proteins and FD that has striking similarity to the FAC. By probing the extended loop of TFL1 a

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15

Monfort, Manon. "Characterizing and editing the gene network regulating flowering in soybean to develop early-flowering varieties adapted to European Cultivation." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASB013.

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Le soja est une plante de jours courts dont la distribution géographique naturelle est limitée par sa sensibilité à la photopériode. En hautes latitudes, la culture du soja nécessite une floraison précoce et une sensibilité réduite à la photopériode. Cependant, la complexité génétique de la régulation de la floraison rend les approches classiques de sélection difficiles et chronophages. Face à ces défis, ce projet de recherche s'articule autour de trois études interdépendantes, axées sur l'avancement de la floraison du soja et le développement d'outils innovants d'édition du génome chez le soj

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16

Christodoulou, Vangelis. "Genetic and molecular characterization of early maturity mutants of barley (Hordeum vulgare L.)." Thesis, University of East Anglia, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268511.

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17

Smart, Mariette. "Physiology of floral induction in Protea spp." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/20942.

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Thesis (MSc)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: The aim of this study was to elucidate the control of flowering in Protea spp. The main factor that makes studying flowering in this diverse genus so challenging is the fact that most Protea spp. and their commercial hybrids have very dissimilar flowering times. The carbon input into floral organ formation and support is expensive as flowers from Protea spp are arranged in a very large ‘flowerhead’ (50 mm by 130 mm for ‘Carnival’) that can take up to two months to develop fully. Therefore the carbon needed for structural

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18

Orvos, Andrea Reiser. "Examination of flower initiation and development of Streptocarpus x hybridus." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/40971.

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<p>Effects of exogenously applied GA<sub>4+7</sub> on floral and vegetative development of <u>Streptocarpus x hybridus</u> were investigated. <u>S. x hybridus</u> 'Hybrid Delta' petiolode tissue from plants treated with 25 Î¼g GA<sub>4+7</sub> were examined by scanning electron microscopy. Plants treated at 1 cm leaf lengths appeared unaffected by GA<sub>4+7</sub> one week after treatment while 2 and 3 cm GAâ treated samples showed enhanced floral initiation.</p><br>Master of Science

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19

Ravenscroft, Dean. "The role and regulation of the flowering-time gene suppressor of overexpression of constans 1 during the transition to flowering." Thesis, University of East Anglia, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410246.

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20

Wilson, Jenny, and mikewood@deakin edu au. "Flowering ecology of a Box-Ironbark Eucalyptus community." Deakin University. School of Ecology and Environment, 2002. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050826.113429.

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Box-Ironbark forests occur on the inland hills of the Great Dividing Range in Australia, from western Victoria to southern Queensland. These dry, open forests are characteristically dominated by Eucalyptus species such as Red Ironbark E. tricarpa, Mugga Ironbark E. sideroxylon and Grey Box E. microcarpa. Within these forests, several Eucalyptus species are a major source of nectar for the blossom-feeding birds and marsupials that form a distinctive component of the fauna. In Victoria, approximately 83% of the original pre - European forests of the Box-Ironbark region have been cleared, and the

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21

Wang, Chi. "Propagation, height control, and flowering of Hypoestes phyllostachya." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02132009-171112/.

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22

Grayling, Tony. "Perilla flowering and the nature of floral stimuli." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335090.

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23

Davies, Thomas Jonathan. "Environmental energy and species diversity in flowering plants." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408927.

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24

Harris, Mark Steven. "The evolution of sexual dimorphism in flowering plants." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442466.

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25

Roussot, Clotilde. "Misexpression of the Arabidopsis flowering-time gene Constans." Thesis, University of East Anglia, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405377.

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26

Yeh, Der-Ming. "Manipulation and predictive modelling of flowering in cineraria." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309594.

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27

Le, Huquet Jeannette Anne. "Heavy metal-regulated gene expression in flowering plants." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241491.

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28

Zhang, Hui. "Triticeae genome relationships and wheat flowering time genes." Thesis, Open University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390896.

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29

Abeysiriwardena, D. S. de Z. "Characterization of delayed flowering in soybean in Virginia." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/39757.

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Delayed flowering has the potential to overcome the problem of restricted vegetative growth, prior to flowering, that is often associated with double-cropped soybeans [Grycine max (L.) Merr.]. Objectives were to study delayed flowering in soybeans as influenced by date of planting, to estimate the lengths of the component vegetative periods in soybeans under short-day conditions, and to study the mode of inheritance of delayed flowering in soybeans. Date of planting experiments conducted in the field at two Virginia locations using 27 cultivars and breeding lines showed that genotypic differen

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30

Smart, Mariette. "Flowering in protea : a molecular and physiological study." Doctoral thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11262.

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Includes bibliographical references.<br>Proteas have been extensively cultivated and are grown as floricultural crop plants in many parts of the world, including South Africa. However, the factors that influence the initiation of flowering in Protea have not been identified. From data gathered by the Protea Atlas Project it is evident that Protea spp. have greatly varying flowering times. Furthermore, flowering times between Protea spp. and their hybrid cultivars are also very different. Towards a better understanding of the factors involved in floral initiation in this cultivated crop, three

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31

Sköld, Emmy. "Evolution of flowering time in a changing environment." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-451311.

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How come the same species of plants can naturally occur under various conditions in different parts of the world? A plant's ability to adapt in response to a changing climate hinges on the presence of genetic variation in traits, such as flowering phenology. In this study, I examine whether flowering start varies genetically within populations and compare this variation to differences between populations. This study quantifies genetic variation in flowering time in two Italian populations of Arabidopsis thaliana whilst using two Swedish populations as a reference. This was done using a randomi

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32

Ottman, M. J., S. H. Husman, R. D. Gibson, and M. T. Rogers. "Planting Date and Sorghum Flowering at Maricopa, 1997." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/208282.

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A study was conducted at the Maricopa Agricultural Center to determine the influence of planting date on time to flowering of sorghum hybrids. Sorghum was planted on March 19, April 16, May 14, June 18, July 2, July 16, and July 30. A total of 17 sorghum hybrids varying in maturity groups from early to late were planted at each date. The number of days from planting to flowering was greatest at the March 19 planting date and decreased with each planting date thereafter. Growing degree days required to reach flowering likewise decrease as planting was delayed. In order to avoid the heat during

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33

Ralowicz, A. E., C. F. Mancino, and D. M. Kopec. "Variation in Flowering and Germination in Hilaria belangeri." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/215831.

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34

Locascio, Antonella. "Vernalization downregulates Flowering Locus C in Cichorium intybus." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425023.

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Since proper timing of flowering is critical for the survival of plant species, plants have evolved a complex genetic network to regulate their transition to flowering in response to endogenous signals and environmental cues. In winter annuals ecotypes of Arabidopsis, a flowering repressor, FLOWERING LOCUS C (FLC), a MADS box transcription factor, is expressed at such level as to inhibit flowering in the first growing season. FLC expression is enhanced by FRIGIDA (FRI) to levels that inhibit the transition to flowering by repressing the expression of the genes often referred to as Floral Pat

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35

Hoffman, Eleanor Wilhelmina. "Flower initiation and development of Protea cv. Carnival." Thesis, Stellenbosch : Stellenbosch University, 2006. http://hdl.handle.net/10019.1/21741.

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Dissertation (PhD(Agric))--University of Stellenbosch, 2006.<br>ENGLISH ABSTRACT: Advancement of the flowering time of Protea cv. Carnival by approximately three months, without compromising the product quality, was achieved by the application of 6- benzyladenine-containing plant growth regulators to three-flush shoots in autumn. This earlier flowering time coincides favourably with the prime European marketing period (November-January). The percentage three-flush shoots initiating an inflorescence following the brush application of the 6-benzyladenine (BA)-containing regulators, ABG- 30

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36

Laurie, Rebecca Emma. "Controlling the expression of the Arabidopsis floral promoter, FCA." Thesis, University of East Anglia, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273579.

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37

Thompson, Helen L. "Analysis of repetitive DNA in the Arabidopsis genome." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296565.

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38

Malone, Susan. "Phosphoenolpyruvate carboxykinase in Arabidopsis thaliana (L.)." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269288.

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39

Gass, Thomas Gass Thomas. "Tolerance of soybean to low temperature stress during flowering /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10771.

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40

St, Onge Kate R. "Natural variation in Populus tremula flowering time gene PtCO2B." Thesis, Umeå University, Plant Physiology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-24771.

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<p>Trees dominate terrestrial ecosystems and produce most of the terrestrial biomass, additionally the increasing worldwide demand for timber, pulp and paper and biofuels means trees are of high economical important, consequently the study of trees is important for both ecological and industrial purposes. Dormancy, bud flush and bud set are important traits both ecologically and for breeding purposes, and forest trees display extensive natural variation in these traits for adaptation to the wide range of climates which they inhabit. The candidate genes PtCO2B and PtCO2A are used in an associat

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41

Genger, Ruth Kathleen, and Ruth Genger@csiro au. "Cytosine methylation, methyltransferases and flowering time in Arabidopsis thaliana." The Australian National University. Faculty of Science, 2000. http://thesis.anu.edu.au./public/adt-ANU20011127.115231.

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Environmental signals such as photoperiod and temperature provide plants with seasonal information, allowing them to time flowering to occur in favourable conditions. Most ecotypes of the model plant Arabidopsis thaliana flower earlier in long photoperiods and after prolonged exposure to cold (vernalization). The vernalized state is stable through mitosis, but is not transmitted to progeny, suggesting that the vernalization signal may be transmitted via a modification of DNA such as cytosine methylation. The role of methylation in the vernalization response is investigated in this thesis.

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42

Marquardt, Andreas Sebastian. "Linking RNA processing to chromatin by studying flowering time." Thesis, University of East Anglia, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514334.

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43

Nyarko, George. "Flowering and seed production of cabbage for the tropics." Thesis, Nottingham Trent University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444651.

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44

Holmes, James. "Characterisation of a flowering time mutant of Arabidopsis thaliana." Thesis, University of Warwick, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426734.

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45

Dutton, Kirsty Jean. "Flowering and growth of Calluna vulgaris (L.) Hull cultivars." Thesis, University of Aberdeen, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387218.

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This thesis reports a study of the flowering response of heather, <i>Calluna vulgaris</i> (L.) Hull and of experimental procedures designed to modify the time of onset of that process, with particular reference to year-round production of the flowering plant, in line with recent expansion in the European and British pot plant industries. Microscopic apical examinations were employed throughout to identify and monitor development of floral primordia. Research concentrated on flowering responses to photoperiodic stimuli, provided by various lighting regimes, including fluorescent and tungsten so

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46

Robson, Frances Clare. "Characterization of CONSTANS, an Arabidopsis gene that promotes flowering." Thesis, Open University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264856.

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47

Haspolat, Emrah. "Mathematical modelling of Arabidopsis flowering time gene regulatory network." Thesis, Northumbria University, 2018. http://nrl.northumbria.ac.uk/36266/.

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Experimental studies of the flowering of Arabidopsis Thaliana have shown that a large complex gene regulatory network (GRN) is responsible for its regulation. This process has recently been modelled with deterministic differential equations by considering the interactions between gene activators and inhibitors [Valentim et al., 2015, van Mourik et al., 2010]. However, due to the complexity of the models, the properties of the network and the roles of the individual genes cannot be deduced from the numerical solution the published work offers. In this study, deterministic and stochastic dynamic

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48

Bishopp, Anthony. "Specificities of Polycomb group proteins controlling flowering in Arabidopsis." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/11985.

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In both plants and animals Polycomb group (PcG) genes act to maintain silencing of key developmental genes. A number of PcG genes have been identified in <i>Arabidopsis</i> through independent genetic screens. These can be placed in three groups based upon strong homology with the <i>Drosophila </i>proteins E(z), ESC and SU(Z)12. <i>Arabidopsis</i> contains multiple homologues of E(z) and these have evolved to act in different pathways (<i>CURLY LEAF</i> represses flowering in the immature plant; <i>MEDEA</i> prevents certain aspects of seed development in the absence of fertilisation; and <i>

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49

Chanvivattana, Yindee. "Interactions amongst polycomb-group genes regulating flowering in Arabidopsis." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/13359.

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The recessive <i>moe leaf </i>(<i>moe</i>) mutation confers a similar phenotype to <i>clf</i> mutations. Molecular and genetic studies indicated that like <i>CLF, MOE</i> activity is required to repress floral homeotic gene expression suggesting that the wild-type <i>MOE</i> gene might define an additional Pc-G protein. This was confirmed by the isolation of <i>MOE</i>. Thus mapping of <i>MOE</i> showed that it is located to the region of a recently isolated <i>Arabidopsis </i>Pc-G member, the <i>EMBRYONIC FLOWER2 </i>(<i>EMF2</i>) gene which play an important role in repressing floral genes d

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50

Schuck, Susan M., and Steven P. McLaughlin. "Flowering Phenology and Outcrossing in Tetraploid Grindelia camporum Green." University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/609102.

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Several reproductive processes of tetraploid Grindelia camporum were investigated. This plant is a potential resin crop for the southwestern United States. Field observations of 100 flower heads from unopened buds through 100% achene dispersal were made. It was found that individual flower heads are available for pollination for approximately 5 days but all disc florets are open for only 1 day. On average, achenes mature in 22 days and are dispersed 53 days after flowering. Fourteen-hundred hand-pollinations were also made on plants from 6 wild populations of G. camporum grown in a greenhouse

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