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Dissertations / Theses on the topic 'Vegetative phase'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Beydler, Benjamin DuPree. "Dynamics of gene expression during vegetative phase change in maize." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1431.

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As maize plants undergo vegetative phase change, they both exhibit heteroblasty, an abrupt change in pattern of leaf morphogenesis, and gain the ability to produce flowers. Both processes are under the control of microRNA 156, whose levels decline at the end of the juvenile phase. Gain of ability to flower is conferred by expression of miR156 targets that encode Squamosa Promoter-Binding (SBP) transcription factors, which in turn induce the expression of MADS-box transcription factors that promote maturation and flowering. What gene expression differences underlie heteroblasty, as well as what

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2

Herman, Bram. "The phase change from vegetative to reproductive growth in Agaricus bisporus." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3152/.

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The phase change from vegetative to reproductive growth in Agaricus bisporus is a complex process involving changes in morphology at least in part regulated genetically and influenced by various environmental signals. This work was aimed at understanding how the morphology changes, and the specific environmental parameters are involved, and which genes show changes in transcription during the phase change process in A. bisporus. Different resources and methodologies were developed and applied to investigate this process including digital time-lapse photography, genome database assembly, design

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3

FOULDRIN, KARINE. "Effet de la nutrition azotee sur la dynamique de l'azote chez l'endive (cichorium intybus, l. ) au cours de sa phase vegetative et au forcage." Paris 11, 1993. http://www.theses.fr/1993PA112321.

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La culture de la chicoree, qui aboutit a la production d'un organe tuberise, le chicon, comporte deux phases distinctes. Au cours de la phase vegetative, la racine tuberisee accumule des reserves, en particulier azotees, puis passe de l'etat de puits a l'etat de source. Ce changement lui permet lors de la seconde phase, le forcage, de remobiliser ses reserves et de contribuer a la croissance d'un bourgeon etiole, le chicon. La dynamique (absorption, accumulation et remobilisation) de l'azote pendant ces deux phases a ete suivie sous deux regimes de nutrition azotee, grace a l'emploi de l'azote

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4

Drouet, Jean-Louis. "Variations de la disposition spatiale et de la teneur en azote des feuilles d'un peuplement de maïs en phase vegetative : etude par simulation de l'influence de ces variations sur la photosynthese potentielle du couvert." Paris, Institut national d'agronomie de Paris Grignon, 1998. http://www.theses.fr/1998INAP0006.

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La modification de la densite de plantes et les apports azotes sont deux techniques culturales qui conditionnent la production d'une culture. L'influence de la densite est en general evaluee a l'echelle du couvert sans tenir compte de la repartition spatiale des structures. De meme, les variations de la repartition de l'azote apporte a la culture ont ete etudiees a l'echelle du couvert ou, inversement, a celle du tissu. Mais l'effet de la position relative des organes aeriens sur la photosynthese du couvert manque. A partir de deux series de dispositifs experimentaux sur mais au champ, nous av

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5

Aralova, Dildora, Kristina Toderich, Ben Jarihani, Dilshod Gafurov, and Liliya Gismatulina. "Monitoring of vegetation condition using the NDVI/ENSO anomalies in Central Asia and their relationships with ONI (very strong) phases." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A34865.

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An investigation of temporal dynamics of El Niño–Southern Oscillation (ENSO) and spatial patterns of dryness/wetness period over arid and semi-arid zones of Central Asia and their relationship with Normalized Difference Vegetation Index (NDVI) values (1982-2011) have explored in this article. For identifying periodical oscillations and their relationship with NDVI values have selected El Nino 3.4 index and thirty years of new generation bi-weekly NDVI 3g acquired by the Advanced Very High Resolution Radiometer (AVHRR) satellites time-series data. Based on identification ONI (Oceanic Nino Index

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6

Jorge, Letícia Galhardo. "Desempenho fotossintético, perfil e atividade do óleo essencial de Xylopia aromatica (Lam.) Mart. nas fases vegetativa e reprodutiva no cerrado paulista." Botucatu, 2020. http://hdl.handle.net/11449/192182.

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Orientador: Carmen Silvia Fernandes Boaro<br>Resumo: Espécies vegetais são capazes de produzir diversidade de substâncias, que desempenham funções importantes para sua sobrevivência e adaptação ao ecossistema. O metabolismo primário, é essencial para o crescimento, desenvolvimento, maturação e reprodução de qualquer espécie. O metabolismo especializado, dependente do primário, é responsável por originar o óleo essencial, que são misturas de metabólitos especializados voláteis, representados principalmente por monoterpenos e sesquiterpenos. Cada espécie vegetal produz um óleo essencial de compo

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7

Boujamlaoui, Zakaria. "Continuum sol-plante-atmosphère : influence de l'évapotranspiration réelle sur les bilans isotopiques : (18 O, ²H), climat tempéré et climat aride." Paris 6, 1993. http://www.theses.fr/1993PA066036.

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Ce mémoire analyse l'influence de l'évapotranspiration sur l'évolution de la composition isotopique (#1#8o, #2h) de l'eau de différents du continuum sol-plante-atmosphère. Les résultats obtenus ont permis de : - modéliser, en milieu contrôlé, l'évolution spatio-temporelle du front d'évaporation au sein d'une colonne de sol et de calculer les pertes en eau liées à cette évaporation ; - d'élaborer un modèle isotopique qui autorise la détermination de la part réelle d'eau perdue par évaporation du sol. Ce modèle permet de décrire le profil isotopique de l'eau dans le sol en conditions hydrodynami

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8

Романець, О. А. "Оптимізація технології вирощування кукурудзи в умовах господарства ТОВ «Біокарт-Агро»". Thesis, Чернігів, 2021. http://ir.stu.cn.ua/123456789/25091.

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Романець, О. А. Оптимізація технології вирощування кукурудзи в умовах господарства ТОВ «Біокарт-Агро» : випускна кваліфікаційна робота : 201 "Агрономія" / О. А. Романець ; керівник роботи Л. А. Шевченко ; НУ "Чернігівська політехніка", кафедра аграрних технологій та лісового господарства. – Чернігів, 2021. – 51 с.<br>В дипломній роботі використані дані польових досліджень. Мета роботи дослідити вплив мінеральних добрив на ріст, розвиток, урожайність і якість зерна кукурудзи. На основі проведення експериментальних досліджень в умовах господарства зроблений висновок про удосконалення елементів

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9

GUERINOT, GENEVIEVE. "Modelisation du vieillissement chimique de panaches de feux boreaux." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10068.

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Les feux de biomasse ont un impact important sur l'atmosphere car ils emettent de grandes quantites de composes reactifs (co, hydrocarbures, acides organiques, nh 3, no x, no y), de gaz a effet de serre (co 2, ch 4, n 2o), et d'aerosols. Cette etude est principalement basee sur 2 types de mesures : (1) la composition chimique de panaches de feu du canada et de l'alaska (campagne able-3b : the arctic boundary layer expedition) ; (2) l'analyse chimique des carottes de glaces du groenland qui fournit un enregistrement unique des precipitations refletant la composition atmospherique au moment de l

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10

Dejmalová, Hana. "Bytový komplex LIVE UP v Brně - příprava realizace stavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265703.

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The subject of the master´s thesis are selected parts construction technology project apartment house LIVE UP in Brno – Bohunice. It is a new building with one underground floor and six overground floors. Construction of the house is monolithic and upper floors are bearing masonry walls. The work includes technical reports, study the implementation of major construction phases, organization of the construction, technological regulation of flat single-roof, itemized budget with the statement of measurements, time schedule, inventory of machines.

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11

Vander, Schoor JK. "The genetic control of vegetative phase change in pea." Thesis, 2018. https://eprints.utas.edu.au/28438/1/Vander_Schoor_whole_thesis.pdf.

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Plants exhibit numerous changes as they develop from a germinating seed through vegetative and reproductive stages to maturity. A seedling begins in a juvenile vegetative phase, and grows in size through the addition of new vegetative organs. As the plant acquires reproductive competence it enters an "adult" vegetative phase where flowering can occur in response to favourable environmental conditions. The initiation of reproductive structures signifies transition to the adult reproductive phase, in which gametes can eventually be produced and the formation of new seeds can occur, followed by s

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12

Hung洪筱梅, Hsiao-Mei, and 洪筱梅. "Arabidopsis PANS1 regulates vegetative phase transitions by modulating the expression of miR156." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/85621201833030626717.

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碩士<br>國立成功大學<br>生命科學系<br>103<br>Organ size control of multicellular organisms poses a longstanding biological question that has always fascinated scientist. Especially leaf growth, by providing the food and renewable energy sources, is at the core of plant growth and undoubtedly an important part of human economic activities. Here, I report a novel Arabidopsis mutant, patronus1 (pans1), which reduced cell size and decreased cell number in leaves. The development of abaxial trichomes was also delayed in pans1. These facts indicate that pans1 mutant may accelerate heteroblasty, a phenomenon in w

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13

Hurkman, Margaret M. "Vegetative phase transition and response to disease in maize (zea mays l.)." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.

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14

Refli. "The physiological and genetic control of vegetative phase change in Pisum sativum L." Thesis, 2003. https://eprints.utas.edu.au/21358/8/whole_Refli2003_thesis.pdf.

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Plants develop through at least three distinct phases after germination: a juvenile vegetative phase; an adult vegetative phase; and a reproductive phase. Therefore, there exist two main ontogenetic transitions, the juvenile-adult vegetative transition or vegetative phase change, and the adult vegetative-reproductive phase transition or reproductive phase change. The genetic and physiological control of the transition to flowering has been studied intensively over the past four decades but the other major transition has received much less attention. This study investigates the genetic and phys

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15

Kulkarni, Kaumudi. "Aspergillus nidulans septin AspD appears to regulate new growth emergence in the vegetative phase." 2008. http://purl.galileo.usg.edu/uga%5Fetd/kulkarni%5Fkaumudi%5Fa%5F200805%5Fms.

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16

Abedon, Bruce Gordon. "The timing of vegetative phase change in maize (Zea mays L) genetics and relationship with agronomic triats /." 1997. http://catalog.hathitrust.org/api/volumes/oclc/37814670.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1997.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 188-205).

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17

Basso, Carlos Federico. "Vegetative phase change and response to common rust (puccinia sorghi schw.) in sweet corn (zea mays L.)." 2003. http://catalog.hathitrust.org/api/volumes/oclc/51763154.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2003.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 36-41).

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18

Chandler, Michael A. "Vegetative phase change and quantitative resistance to common rust (Puccinia sorghi Schw.) in sweet corn (Zea mays L.)." 2006. http://catalog.hathitrust.org/api/volumes/oclc/70246694.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2006.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 93-107).

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19

Riedeman, Eric S. "Vegetative phase change in maize, (Zea mays L.) and its relationships with diease and insect resistance and agronomic traits." 2007. http://catalog.hathitrust.org/api/volumes/oclc/177178423.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2007<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 83-91).

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20

Sümer, Ali [Verfasser]. "Entwicklung einer Natrium-ausschließenden Maislinie und die Bedeutung der Ionentoxizität für das vegetative Wachstum von Mais (Zea mays L.) während der ersten Phase eines Salzstresses / vorgelegt von Ali Sümer." 2003. http://d-nb.info/968411843/34.

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21

Chen, Wei-Han, and 陳偉翰. "FOREVER YOUNG FLOWER (FYF) Regulates Ethylene Response DNA Binding Factors (EDFs) to Control Arabidopsis Floral Organ Senescence/Abscission, and Functional Analysis of FYF, Short Vegetative Phase (SVP) Orthologs From Orchids." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/23762161710107843423.

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博士<br>國立中興大學<br>生物科技學研究所<br>104<br>In this study, we analyzed the relationships between Forever young flower (FYF) and Ethylene response DNA binding factors (EDFs) in regulating flower senescence/abscission. Strong GUS staining was detected in the mature flower and staining decreased in young flowers of the EDF1/2/3/4::GUS transgenic Arabidopsis. This result was opposite to FYF::GUS plants. 35S:EDF1/2/3/4 and 35S::EDF1/2/3/4+SRDX caused similar promotion of flower senescence/abscission and the activation of the senescence-associated genes SAG12, AtMCs and VPEs, indicating that EDF1/2/3/4 funct

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22

Nguyen, Thi Thu Suong. "Investigating development of phloem parenchyma transfer cells in Arabidopsis thaliana." Thesis, 2017. http://hdl.handle.net/1959.13/1337693.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Recent advances in plant membrane transport research have shown that transport proteins embedded within membranes are key targets for improving plant performance, particularly under stresses such as salinity, pathogens or aluminum toxicity. Many transport processes augment plant performance via defined functions in specialized cell types or tissues. Plant transfer cells (TCs) are an example of such cell types. TCs possess increased densities of membrane transporters due to the increased plasma membrane surface area resulting from deposition of

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23

Heinrichs, Steffi. "Response of the understorey vegetation to selection cutting and clear cutting in the initial phase of Norway spruce conversion." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-B691-E.

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Heinrichs, Steffi [Verfasser]. "Response of the understorey vegetation to selection cutting and clear cutting in the initial phase of Norway spruce conversion / vorgelegt von Steffi Heinrichs." 2010. http://d-nb.info/1009492896/34.

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