To see the other types of publications on this topic, follow the link: Berry.
Dissertations / Theses on the topic 'Berry'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Berry.'
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
Hall, Geoffrey Earle. "Berry shrivel physiological, compositional and anatomical consequences affecting berry development in Vitis vinifera L. /." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Spring2010/G_Hall_042310.pdf.
Full textAbstract:
Thesis (M.S. in horticulture)--Washington State University, May 2010.Title from PDF title page (viewed on July 7, 2010). "Department of Horticulture and Landscape Architecture." Includes bibliographical references (p. 113-119).
2
Bresson, Jean-Robert. "Le mégalithisme dans le Berry." Lyon 2, 2001. http://theses.univ-lyon2.fr/documents/lyon2/2001/bresson_jr.
Full textAbstract:
Le Berry, province centrale enserrée, dans l'arc Ligérien à toujours constitué un territoire de passage pour les préhistoriques. Les deux principaux courants facteurs de Néolithisation et de sédentarisation au Néolithique ancien, se manifestent, et se retrouvent conjugués sur ce territoire, mais le principal acteur de la société Agropastorale, 4500 ans avant notre ère, reste le groupe de Chambon, précurseur également dans l'architecture funéraire. Le courant Mégalithique d'origine Atlantique s'impose dès le Néolithique Moyen, et, la pratique de cette technique funéraire s'étale sur deux millénaires. Un inventaire des Mégalithes distingue trois ensembles : au Nord des Dolmens complexes de type Angevin ; En Champagne Berrichonne, quelques dolmens apparentées aux angoumoisins. Dans le Boischaut sud des dolmens simples proches du groupe Limousin. Les vertiges archéologiques exhumés lors des fouilles des sépultures collectives dolméniques ou découverts dans certaines stations, permettent : d'apprécier les multiples influences exercées sur les populations sédentarisées : Poteries d'obédience nord-italique - céramiques en provenances des cultures de Michelsberg et de Horgen au Néolithique moyen et récent-objets métalliques façonnés par les groupes Chalcholithiques au Néolithique moyen final. Durant toute la période Mégalithique, la pérennité des modes de pensé est compensée par la variabilité des rites funéraires axés sur l'utilisation de la pierre, mais fonction des styles des cultures prépondérantes : d'ou une certaines originalité provinciale basée sur les adaptations régionales du Mégalithisme, phénomène transculturel, et, sur le refus de tout syncrétisme symbolique.
3
Cottengim, Sean. "313 Berry Street presencing architecture /." Cincinnati, Ohio : University of Cincinnati, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1243008502.
Full textAbstract:
Thesis (Master of Architecture)--University of Cincinnati, 2009.Advisors: Vincent Sansalone (Committee Chair), Tom Bible (Committee Co-Chair). Title from electronic thesis title page (viewed July 25, 2009). Includes abstract. Keywords: Presentation; theory; presentation theory; design build; presencing; covington; kentucky; northern kentucky. Includes bibliographical references.
4
Lagarde, Emmanuel. "L'âne grand noir du Berry /." [Lignières] (44 route de La Châtre, 18160) : [E. Lagarde], 1995. http://catalogue.bnf.fr/ark:/12148/cb366931708.
Full text
5
Bresson, Jean-Robert Aurenche Olivier. "Le mégalithisme dans le Berry." [S.l.] : [s.n.], 2001. http://demeter.univ-lyon2.fr/sdx/theses/lyon2/2001/bresson_jr.
Full text
6
Pedder, Christopher James. "Berry phases in supersymmetric quantum mechanics." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611287.
Full text
7
Gouverneur, Yves. "Phase de Berry et quantification de skyrmions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0002/MQ33663.pdf.
Full text
8
Moore, David Jeffrey. "Non-adiabatic Berry phases for periodic Hamiltonians." Thesis, University of Canterbury. Physics, 1991. http://hdl.handle.net/10092/8072.
Full textAbstract:
A method for the calculation of Berry phases for periodic, but not necessarily adiabatic, Hamiltonians is reported. This method is based on a novel factorisation of the evolution operator and is in the spirit of the theory of systems of linear differential equations with periodic coefficients.
The use of this approach in practical situations is greatly facilitated by exploiting the Fourier decomposition of the Hamiltonian. This converts the problem into an equivalent time-independent form. The solution to the problem is then expressible in terms of the eigenvectors and eigenvalues of a certain self-adjoint operator called the Floquet Hamiltonian. This operator can be calculated from the Fourier decomposition of the original Hamiltonian.
Our formalism has several calculational advantages over the other methods used in the literature. These advantages are best seen by considering standard quantum optical systems such as the semi-classical model of a two-level atom strongly irradiated by a near resonant laser beam. The utility of our formalism is not confined to systems of this type however. For example it can be used to great advantage in the study of systems with time-odd electron-phonon coupling.
Apart from its calculational utility, our formalism also has important theoretical applications. Here it is used to clarify the relationship between Berry phases and the time dependence of the Hamiltonian.
9
Letourneau, Henri. "Réseaux industriels en Berry, Nivernais, Bourbonnais, Marche." Paris 1, 1988. http://www.theses.fr/1988PA010611.
Full textAbstract:
Berry, Nivernais, Bourbonnais. Marche pourraient constituer une région-plan possédant des solidarités internes, la région centre n'étant qu'un assemblage hétéroclite. Bourges possède des atouts susceptibles d'animer cette région-plan. Des masses denses : axe du Berry, Nièvre ligérienne, val d'Allier, région Montluçonnaise, s'ordonnent autour de hiatus ruraux. Une part de l'industrie est héritée de la pré-révolution industrielle, notamment une dorsale mono-industrielle métallurgique Vierzon-Gueugnon. Les anciennes chaines de production, symbolisées par les sociétés sidérurgiques, le canal du Berry, et qui tendaient à réaliser une région économique, ont disparu. La centralité a toujours attiré les replis industriels stratégiques. La décentralisation industrielle a confirmé les points forts du réseau urbain et n'a pas remédié aux déséquilibres régionaux. Dans la période post-décentralisatrice, le marasme économique a appauvri les relations régionales au profit de réseaux nationaux et internationaux. Plusieurs villes ont accaparé plus que diffuse la croissance industrielle. Quelques grands établissements stérilisent le tissu industriel. La théorie des pôles de développement semble d'un intérêt limité : elle conduit à concentrer géographiquement la croissance. Ces pôles, quand ils existent, sont des établissements industriels plutôt que des villes. Croissance industrielle et croissance urbaine sont parfois disjointes. Les réseaux industriels se surimposent aux réseaux urbains : créatrice de villes. L'industrie "perturbe" des réseaux urbains préexistants, infirmant les théories classiques ; par l'intermédiaire des principaux établissements industriels, les villes s'intègrent à de grandes organisations spatiales, dont celles des multinationales. Le tertiaire industriel échappe fréquemment à notre région, intégrée à un espace de production sous tutelle parisienne. L'autonomie industrielle régionale est limitée ; le rayonnement aussi. . .Berry, nivernais, bourbonnais. Marche having common or complementary interests. Could be program-region. Whereas the centre-region is but a patchwork of heterogeneous contonents. That program-region could be energized by the assets of bourges. Dense masses : berry pace-maker, loire nivernaise, val d'allier, montlucon area, have developed around rural islands. Industry is partly a legacy of the pre-industrial revolution, more particularly a backbone of metallurgical mono-industry vierzon-geugnon. The old chains of production, illustrated by the iron-smelting companies, the berry canal, and which tended to make the region an economic one, have disappeared. Central regions have always harboured strategic industrial withdrawals. Industrial decentralisation has reinforced the already existing strong points of the urban network and failed to correct regional imbalance. In the post-decentralisation period, the economic slump made regional relations poorer in favour of national or international networks. Several towns have captured, rather than diffused, industrial growth. The industrial fabric is sterilised by a few large industrial establishments. The poles of development theory seems to afford limited interest as it leads to geographic concentration of growth. Such poles, where they exist, are industrial establishments rather than towns. Industrial and urban groqths are sometimes disconnected. Industrial networks are superimposed on towns networks : creative of towns. Industry disrupts existing urban networks, belying the classic theories ; through the leading industrial establishments, towns become integrated into large spatial organisations, among which are the multinational companies. The industrial tertiary sector is often lacking in our region, which is integrated into a production area under parisian supervision. . .
10
Rivera, Tina M. "Competitive performance in an apple berry polyculture /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486546889381254.
Full text
11
Letourneau, Henri. "Réseaux industriels en Berry, Nivernais, Bourbonnais, Marche." Lille 3 : ANRT, 1989. http://catalogue.bnf.fr/ark:/12148/cb37615180j.
Full text
12
Dias, Camila Schwartz. "Propagação de Goji Berry (Lycium barbarum L.)." Universidade Federal de Pelotas, 2017. http://guaiaca.ufpel.edu.br:8080/handle/prefix/4139.
Full textAbstract:
Submitted by Gabriela Lopes (gmachadolopesufpel@gmail.com) on 2018-08-15T19:00:28Z
No. of bitstreams: 1
Dissertação Propagação de Goji Berry (Lycium barbarum L.).pdf: 1134390 bytes, checksum: 8977a0c6bc08f9e3f5ae8cc5e6b38318 (MD5)Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2018-08-17T12:42:21Z (GMT) No. of bitstreams: 1 Dissertação Propagação de Goji Berry (Lycium barbarum L.).pdf: 1134390 bytes, checksum: 8977a0c6bc08f9e3f5ae8cc5e6b38318 (MD5)
Made available in DSpace on 2018-08-17T12:42:21Z (GMT). No. of bitstreams: 1 Dissertação Propagação de Goji Berry (Lycium barbarum L.).pdf: 1134390 bytes, checksum: 8977a0c6bc08f9e3f5ae8cc5e6b38318 (MD5) Previous issue date: 2017-09-25
Os métodos de obtenção de mudas de qualidade de Goji Berry ainda não estão estabelecidos no Brasil. Assim, este estudo teve como objetivo desenvolver metodologias para análise de sementes desta frutífera bem como para a micropropagação. No primeiro experimento buscou-se verificar a temperatura para germinação e estabelecer a primeira e última contagem das sementes. Para tanto, foram testadas quatro temperaturas: 20ºC, 25ºC, 30ºC e 20-30ºC e o tempo de emergência a 25ºC. Verificou-se que a primeira contagem deve ser realizada no 3º dia após a instalação do teste de germinação e a última deve ser realizada no 10º dia; que as temperaturas de 25ºC e alternada de 20-30ºC são consideradas ideais para o teste de germinação e que a temperatura alternada proporcionou o maior valor para as variáveis analisadas. O segundo experimento foi realizado no Laboratório de Propagação de Plantas Frutíferas da UFPel e foi utilizado o meio de cultura MS como meio base. O objetivo foi avaliar a multiplicação in vitro para obtenção de explantes em condições fotoautrotróficas utilizando diferentes tipos de vedações (algodão, alumínio e Parafilm®) e distintas concentrações de sacarose (0, 15, 30, 45 g L-1). Os dados foram submetidos à análise de variância através do teste F (p≤0,05). Constatando-se significância estatística, os efeitos das vedações foram comparados pelo teste de Waller-Duncan (p0,05) e concentrações por modelos de regressão (p0,05). Concluiu-se que a vedação do tipo algodão associado ao uso de sacarose na concentração de 30 g L-1, propiciou os maiores resultados para o número de brotações, comprimento da maior brotação e matéria seca. Em ausência de sacarose no meio de cultura o algodão proporcionou as maiores médias de matéria fresca e seca.
The methods to acquire Goji Berry seedling has not been established in Brazil up to this date. Thereby, this study’s aim is to create a methodology to analyze seeds from this fruitful tree as well as to do its micropropagation. In the first experiment, it was intended to verify the germination temperature and to establish the first and last seed count. Therefore, four temperatures were tested: 20ºC, 25ºC, 30ºC and 20-30ºC and the emergency time at 25ºC. It was verified that the first count should be performed on the 3rd day after the germination test was installed and the last one should be performed on the 10th day. It was also seen that the temperatures of 25ºC and the alternated 20-30ºC are considered ideal for the germination test and that the alternated temperature has provided the highest value for the analyzed variables. The second experiment was performed at UFPel’s Laboratório de Propagação de Plantas Frutíferas, and it was used MS medium culture as medium base. In the in vitro multiplication phase, was verified the explants obtainment under photoautotrophic conditions using different types of sealing (cotton, aluminum and Parafilm®) and different concentrations of sucrose (0, 15, 30, 45 g L-1). Data was submitted to variance analysis using the F test (p≤0.05). Being verified statistical significance, the effect of the variation of sealings were compared by the Waller-Duncan test (p0,05) and concentrations by regression models (p≤0.05.It was concluded that the cotton-type sealing associated with the use of sucrose at the concentration of 30 g L-1 provided the highest results for the number of budding and length of the longest budding. This combination was also efficient in obtaining a higher number of leaves, but the highest value was obtained using Parafilm as sealing and the sucrose concentration of 45 g L-1. Vitrification was observed to a lesser extent in flasks sealed with aluminum. In the absence of sucrose in the culture medium, cotton has provided the highest averages of fresh and dry matter.
13
Rathinam, Alagappan Diviya. "Influence of invections of mild isolates of different grapevine viruses on berry colour, texture, flavour and storage life of 'Crimson seedless' table grapes." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/331.
Full textAbstract:
‘Crimson Seedless’ grape is an economically important cultivar of table grapes with superior eating characteristics due to firmer berries, colour and good flavour. The aim of this research project was to investigate the influence of infection of mild isolates of grapevine leafroll associated viruses (GLRaV) 3, 5, 9 and grapevine virus A (GVA) on berry colour, texture, SSC, TA and SSC: acid ratio in ‘Crimson Seedless’ grapes during maturation, ripening and cold storage life and quality. The infection of GLRaV and GVA viruses in clone 3215 (LRV3 (E) + LRV3 (RT-PCR) + GVA + LRV9 + LRV5), clone 3236 + 3215 (LRV3 (E) + GVA + LRV9 + LRV5) reduced berry colour, SSC, SSC: acid ratio; improved berry springiness and gumminess without influencing acidity during maturation and ripening in comparison to virus free control. During cold storage, berries from viral infected clones 3236 + 3215 and 3215 showed improvement in berry colour and SSC and retained good quality until 140 days of storage but, there was no effect on acidity.Berry hardness, gumminess, springiness and cohesiveness were also higher in viral infected clone 3236 + 3215 and clone 3215 than virus free control during cold storage. In sensory evaluation, virus infected clones 3236 + 3215 and 3215 obtained higher scores for berry crispiness, flavour and overall acceptability during cold storage when compared to the virus free controls. In conclusion, the infection of mild isolates of GLRaV and GVA viruses reduced berry colour and SSC but, improved berry textural properties in clones 3236 + 3215 and 3215 of ‘Crimson Seedless’ grapes during maturation and ripening. The quality parameters such as berry colour, textural properties, SSC, TA and sensory scores also remained acceptable for these clones till 140 days cold storage at 0 ± 0.5oC.
14
Gourgues, Pascal. "Le Berry du VIIIème au début du XIème siècle : Etude sur les manifestations de pouvoir dans la seconde moitié du haut Moyen âge." Paris 2, 2000. http://www.theses.fr/2000PA020038.
Full textAbstract:
Au xie siecle, treize familles sont implantees dans l'ancien cadre du pagus de berry. Les differents statuts qui ressortent de l'etude de ces lignages invitaient a poser la question de l'origine de leurs pouvoirs et, plus globalement, a chercher si leur place ne pouvait s'expliquer par l'organisation carolingienne et la lente evolution des institutions au cours des viiie, ixe et xe siecles. Troispoints ont ete envisages -le premier a trait aux circonscriptions mineures. Une demarche pluridisciplinaire a permis de cerner certaines des realites recouvertes par des termes comme vicaria, centena ou encore defensaria. La structure de ces circonscriptions donne en outre l'occasion de determiner l'existence de lieux ou s'exprimait, a l'epoque carolingienne, le pouvoir public et qui ne sont pas forcement mentionnes par les sources. -le deuxieme point aborde la question du fonctionnement des institutions dans le berry aquitain entre la fin du viiie et le debut du xe siecle. La documentation, le plus souvent exterieure a cette region aide a cerner la place a part de ce comte frontalier et surtout le role capital de l'archeveque de bourges, principal appui du rexfrancorum dans sa politique meridionale. -enfin, le dernier point vise a cerner la chronologie de l'emergence des nouvelles formes de pouvoir. Si la mort du dernier duc guilhemide laisse la succession d'aquitaine vacante elle ne marque pas pour autant la disparition de l'autorite comtale et donc de l'unite du berry. Ce sont les robertiens qui y imposent leur puissance ce qui explique d'une part, que le berry echappe au renouveau de la principaute d'aquitaine et d'autre part, la place grandissante des vassaux d'hugues le grand comme les maisons de blois ou d'anjou dans le nord de la region. Dans le reste du pagus ce sont principalement trois familles, issues d'anciens agents du pouvoir, qui arrivent a imposer leur domination.
15
Biondi, Marco. "Dynamics of grape berry volume change during ripening." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/m_biondi_112707.pdf.
Full text
16
Ayala, Rosanna Iris. "Fermentation and Supercritical Extraction Studies of Açaí Berry." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/3961.
Full textAbstract:
The açaí berry has grown in popularity for dieters and the health conscious. The berry contains high levels of antioxidants. The main anthocyanins are cyanidin-3-rutinoside and cyanidin-3-glucoside. The berries also contain vitamins and nutrients that help boost energy and alertness, and fatty acids that help maintain normal cholesterol levels. As a result of the health benefits of the constituents, the berries are chosen for obtaining the active ingredients by extraction.
The solids left over after extraction still contain nutrients and useful components. There is a possibility of fermenting this residual and creating an açaí berry wine. Açaí berry wine is another new product on the market. The extracts and the wine are analyzed using Fourier transform infrared spectroscopy (FTIR). In an effort to utilize every part of the berry, the residual from the extract is also successfully fermented.
Pilot plant studies are conducted utilizing supercritical carbon dioxide, an ethanol entrainer to increase its solubility, and subcritical water to extract components from freeze dried açaí berry. There is much potential and flexibility in the process, which effectively extracted lipids from the berry leaving behind anthocyanins without solvent residue.
17
Monson, Joseph. "A Market Analysis for Berry Crops in Virginia." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/32703.
Full textAbstract:
This thesis analyzes the potential for producers in Virginia to successfully participate in the market for berry crops, which include strawberries, blueberries, raspberries, blackberries, and other novelty berries. A survey of current berry crop producers in Virginia is used to gain insight into the supply-side of the market, and a series of personal interviews with direct market berry crop producers and buyers from retail, wholesale, and processor outlets are conducted to assess the demand-side of the market. The results show that berry crop producers in the state are diverse along many dimensions, with certain groups better positioned to serve the unsaturated demand that exists through direct outlets and others better aligned to serve the increasing demand that exists among indirect buyers. Diversification into berry crop production involves high levels of risk, but the potential returns are likewise high.Master of Science
18
Du, Plessis Beatrix W. "Cellular factors that affect table grape berry firmness." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019/825.
Full text
19
Blackford, Christopher Lawrence. "Contribution of grape berry lipids to wine aroma." Thesis, Blackford, Christopher Lawrence (2020) Contribution of grape berry lipids to wine aroma. PhD thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/56052/.
Full textAbstract:
Understanding how the composition of wine grapes influences the formation of wine volatiles is important for predicting and manipulating wine quality. The objective of this research was to develop an understanding of how non-varietal wine aroma compounds are affected by compounds sourced from grapes. Chemically defined grape juice musts were supplemented with material of interest and the volatile profile of the fermented wines analysed with head-space solid phase micro-extraction (HS-SPME) gas chromatography-mass spectrometry (GC-MS). Supplementing model must with different grape tissues was carried out to determine where volatile-influencing compounds are located in the berries, and variations in amino acid and lipid profiles identified as probable influences on wine aromas made by yeast. In order to isolate and identify grape compounds that increase fatty acid ethyl ester (FAEE) concentrations in wine, fractions of grape extract were separated by liquid chromatography and used to supplement model musts, resulting in the identification of the poly-unsaturated triglyceride TG 54:6 as a major component of fractions that induced high FAEE production during fermentation. The effect of supplementing model must with glycero-lipids on FAEE production was investigated and a positive impact of exogenous poly-unsaturated glycero-lipids on yeast-mediated FAEE production confirmed. A lipidomic profiling study of grape tissues, and of berry and seed development, was carried out by positive-mode liquid chromatography quadrupole time-of-flight MS (LC-QTOFMS). This study indicated: that there are few differences in lipid profile between mature Riesling and Cabernet Sauvignon grapes; that seeds and berry tissues have distinctive lipid profiles; and that lipid profiles change during berry development in both seeds and berry tissues. The results of these studies highlight the need for research into establishing optimal grape lipid profiles to produce wines with targeted wine aroma profiles.
20
Augier, Laurence. "Étude des productions céramiques de l'âge du fer dans le Berry, du Hallstatt C à la Tène B2/C1 : des hommes et des pots." Paris 1, 2012. http://www.theses.fr/2012PA010584.
Full textAbstract:
Notre étude porte sur l'analyse des assemblages céramiques en Berry entre le Hallstatt C et La Tène B2/C1. Les données traitées reposent principalement sur l'analyse d'ensembles inédits provenant majoritairement de fouilles préventives en contexte d'habitat. Le corpus est constitué de 54272 fragments de céramiques représentant un minimum de 6206 récipients, dont la majorité ont été découverts sur le site de Bourges (Cher). L'objectif de notre approche consiste à établir une typologie régionale afin de mieux cerner la chronologie des occupations à la transition entre le premier et le second âge du Fer, ainsi que de définir les contextes de production et leur évolution. Nos propos sont organisés autour de cinq parties permettant de suivre notre démarche. La première étape a consisté à acquérir les données des trente-deux gisements retenus en normalisant l'enregistrement des contextes de découverte, des comptages, des dessins et des identifications typologiques. Les observations sur le mobilier ont conduit à définir sept groupes techniques et la mise en place de deux protocoles d'expérimentation nous a permis de mieux cerner les techniques potières liées à l'utilisation d'un dispositif rotatif et à créer un référentiel des empreintes estampées à l'aide de tiges métalliques. La morphologie des récipients a également été prise en compte pour l'établissement de notre typologie séparant les segments hauts des segments bas des récipients et en traitant à part les couvercles, les passoires et les entonnoirs. La sériation de ces données quantifiées a mis en évidence six étapes marquant l'évolution des productions céramiques en Berry ; qui sont soumises selon les périodes à des influences culturelles d'horizons variés et dont les modes de production subissent des transformations majeures dès l'apparition du tour dans les ateliers de potier.
21
Antini, Alessandro. "Fasi geometriche, fase di Berry ed effetto Aharonov-Bohm." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9127/.
Full textAbstract:
Un sistema sottoposto ad una lenta evoluzione ciclica è descritto da un'Hamiltoniana H(X_1(t),...,X_n(t)) dipendente da un insieme di parametri {X_i} che descrivono una curva chiusa nello spazio di appartenenza. Sotto le opportune ipotesi, il teorema adiabatico ci garantisce che il sistema ritornerà nel suo stato di partenza, e l'equazione di Schrödinger prevede che esso acquisirà una fase decomponibile in due termini, dei quali uno è stato trascurato per lungo tempo. Questo lavoro di tesi va ad indagare principalmente questa fase, detta fase di Berry o, più in generale, fase geometrica, che mostra della caratteristiche uniche e ricche di conseguenze da esplorare: essa risulta indipendente dai dettagli della dinamica del sistema, ed è caratterizzata unicamente dal percorso descritto nello spazio dei parametri, da cui l'attributo geometrico. A partire da essa, e dalle sue generalizzazioni, è stata resa possibile l'interpretazione di nuovi e vecchi effetti, come l'effetto Aharonov-Bohm, che pare mettere sotto una nuova luce i potenziali dell'elettromagnetismo, e affidare loro un ruolo più centrale e fisico all'interno della teoria. Il tutto trova una rigorosa formalizzazione all'interno della teoria dei fibrati e delle connessioni su di essi, che verrà esposta, seppur in superficie, nella parte iniziale.
22
Olivi, Francesco. "Fasi geometriche: fase di Berry e angolo di Hannay." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17498/.
Full textAbstract:
In tale elaborato si presenta il concetto di fase geometrica, definendolo e studiandone le proprietà. Tale fase geometrica è un fattore del tipo $e^{i\gamma}$ che la funzione d'onda di sistemi quantistici accumula dopo una particolare evoluzione del sistema. La caratteristica principale di tali fasi è che dipendono soltanto dalla geometria del problema e non dalla sua dinamica. Verranno presentati esempi come l'effetto di Aharonov-Bohm e il caso di uno spin in un campo magnetico lentamente variabile. Verranno inoltre presentati argomenti precursori della fase di Berry come la fase di Pancharatnam e l'analogo classico per la fase di Berry che è l'angolo di Hannay. Le fasi geometriche emergono quando una certa grandezza viene trasportata parallelamente in un certo spazio. Il trasporto parallelo è un concetto che viene generalizzato e definito nella teoria dei fibrati per cui si spiegherà come tali fasi possano essere inglobate nella teoria matematica dei fibrati.
23
Phiri, Noah Anthony. "Status and control of coffee berry disease in Malawi." Thesis, University of Kent, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327483.
Full text
24
Zietsman, (Anscha) Johanna Jacoba. "Investigating grape berry cell wall deconstruction by hydrolytic enzymes." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96848.
Full textAbstract:
Thesis (PhD)--Stellenbosch University, 2015.ENGLISH ABSTRACT: Maceration enzymes for the wine industry are preparations containing mainly pectinases, cellulases and hemicellulases, used during wine making to degrade the berry cell walls and release polyphenolic and aroma molecules to increase wine quality. These types of enzymes are also used for the harvesting of revenue-generating molecules from pomace (skins, pulp and seeds from grape processing waste), or as processing aids when used in the production of bioethanol. Grape berry cell walls are recalcitrant towards degradation, therefore knowledge about their structures and compositions, as well as how the application of enzymes modify these structures is essential in order to optimise these processes. The aim of this study was to extend current knowledge by using a mixture of existing and novel methodologies to study grape berry cell walls by focusing on the profiles of polymers present in the walls. Cell wall profiling techniques used in this study include the Comprehensive Microarray Polymer Profiling (CoMPP) method that employs monoclonal antibodies and Carbohydrate Binding Modules (CBM) which specifically recognise the polymers in the plant cell wall. With this method we measured the abundance of specific polymers and traced the fluctuation in their levels of abundance as influenced by external factors such as enzyme hydrolysis. The CoMPP method was coupled with monosaccharide profile analysis by GC-MS to determine the building blocks of the cell wall polymers, as well as with Infrared Spectroscopy to monitor the changes in the bulk chemistry profile. Data sets generated by the cell wall profiling methods were analysed with uni- and multivariate statistical methods to detect the major patterns in the data. This study highlighted the cell wall differences on the polymer level, in the berry skin cells of Pinotage grapes at different ripeness levels and how it changes during a standard wine fermentation, leading to the release of homogalacturonans and the exposing of arabinogalactan proteins. When maceration enzymes were added, further depectination was evident and the enzymes unravelled the cell wall of the ripe grapes. In overripe grapes no additional degradation could be observed due to maceration enzyme actions, presumably indicating that the endogenous grape enzymes already caused extensive degradation. When purified enzymes were incubated under buffered conditions with isolated skin cell walls from Pinotage grapes or with Chardonnay grape pomace, different levels of enzymatic hydrolysis were observed and defined. The sequence in which cell wall polymers were extracted, and the influence of specific enzymes in facilitating the extraction process, provided important information on the accessibility of specific cell wall polymers. Synergistic action between, for example an endo-polygalacturonase (EPG) and an endo-glucanase (EG) was demonstrated with CoMPP. This EPG and EG synergism was also demonstrated with a yeast strain (a Saccharomyces paradoxus x S. cerevisiae hybrid) fermented in a buffered pomace suspension. This yeast strain has a native EPG and was engineered to also express a recombinant EG from a genome integrated cassette. The cell walls isolated from the pomace after fermentation were unravelled and depectination took place, as evident from CoMPP data. The cell wall profiling techniques used in this study were proven to be fast and sensitive. It provided insights into the structure of grape cell walls and was used to evaluate the changes due to ripening, fermentation, enzymatic hydrolysis and a heat pre-processing treatment. In addition to the knowledge gained, we also demonstrated that these techniques can be used to evaluate different enzymes and enzyme combinations as well as the potential of microorganisms to degrade grape tissue.
AFRIKAANSE OPSOMMING: Maserasie ensieme vir die wynindustrie is ensiem mengsels wat hoofsaaklik pektinases, sellulases en hemisellulases bevat en word tydens wynbereiding gebruik om die druifkorrel se selwand af te breek, die polifenole en aroma molekules vry te stel en sodoende die wyn kwaliteit te verbeter. Hierdie soort ensieme word ook gebruik om inkomste-genererende molekules vanuit druiweprosesserings afval (doppe, pulp en pitte) te isoleer, en ook as prosesserings hulpmiddels in die produksie van bioetanol. Druifkorrel selwande is weerstandig teen ensiem afbraak en daarom is kennis oor die struktuur en samestelling van die selwand, asook hoe die selwand strukture deur die toediening van ensieme verander word noodsaaklik om sodoende hierdie prosesse te optimaliseer. Die doel van hierdie studie was om die huidige kennis uit te brei deur bestaande asook nuwe metodes te gebruik om die druifkorrel selwand te bestudeer met die fokus op die polimeerprofiel van die selwande. Selwand karakteriserings tegnieke wat in hierdie studie gebruik is sluit in die Comprehensive Microarray Polymer Profiling (CoMPP) metode wat monoklonale teenliggaampies en koolhidraat bindende modules (Carbohydrate binding modules, CBMs) wat spesifiek die selwandpolimere van die plant selwand herken, gebruik. Met hierdie metode het ons die vlakke van spesifieke polimere gemeet asook die skommeling in hulle vlakke soos dit beïnvloed is deur eksterne faktore soos ensiem hidroliese. Die CoMPP metode is tesame met monosakkaried profiel analise, met behulp van GC-MS, wat die boublokke van die selwand polimere bepaal, asook infrarooi spektroskopie om die veranderinge in die oorhoofse chemiese profiel te bepaal, gebruik. Datastelle wat met die selwand karakteriserings tegnieke gegenereer is, is ontleed met een- en multiveranderlike statistiese metodes om die hoof tendense in die data op te spoor. Hierdie studie het die selwand verskille, op die polimeervlak, van Pinotage druiwe uitgelig. Verskillende rypheidsgrade asook hoe dit verander tydens ‘n standaard wynfermentasie is gevolg. Laasgenoemde het die vrystelling van homogalakturonaan en die ontbloting van arabinogalaktoproteïene tot gevolg gehad. Met die byvoeging van maserasie ensieme was dit duidelik dat addisionele pektienverwydering plaasgevind het en dat die ensieme die selwand van die ryp druiwe ontrafel het. In oorryp druiwe was daar geen addisionele selwand afbreking sigbaar as gevolg van die aksie van maserasie ensieme nie, wat moontlik aandui dat die inherente druif ensieme reeds uitgebreide selwand afbraak versoorsaak het. Wanneer gesuiwerde ensieme met geïsoleerde selwande van Pinotage druiwedoppe en met Chardonnay druiweprosesserings afval geïnkubeer is onder gebufferde kondisies, is verskillende vlakke van ensiematiese hidroliese waargeneem en geklassifiseer. Die volgorde waarin die selwand polimere geëkstraheer is, asook die invloed van spesifieke ensieme in die bevordering van die ekstraksie proses, het belangrike inligting verskaf oor die toeganglikheid van spesifieke selwand polimere. Sinergistiese aksie tussen, byvoorbeeld ‘n endo-poligalakturonase (EPG) en ‘n endo-glukanase (EG) is geidentifiseer met behulp van die CoMPP data. Hierdie EPG en EG sinergisme is ook geïllustreer met ‘n gisras (‘n Saccharomyces paradoxus x S. cerevisiae hibried) wat in ‘n gebufferde druifprosesserings afval suspensie gefermenteer het. Hierdie gisras het ‘n endogene EPG en is ontwerp om ook ‘n rekombinante EG uit te druk vanaf ‘n genoom geïntegreerde kasset. Die selwande van die druiweprosesserings afval wat na die fermentasie geïsoleer is, was ontrafel en pektienverwydering het plaasgevind, soos bevestig met CoMPP data. In hierdie studie is bewys dat die selwand karakteriserings tegnieke vinnig en sensitief is. Dit het insigte verskaf oor die struktuur van die druifselwand en is gebruik om die veranderinge as gevolg van rypheidsverskille, wynfermentasie, ensiem hidroliese en hitte prosessering te evalueer. Buiten die bydraes tot kennis oor hierdie onderwerpe, is die bruikbaarheid van hierdie tegnieke ook aangetoon, veral in die evaluasie van verskillende ensieme en ensiemkombinasies, asook mikroörganismes vir die afbraak van druifweefsel.
25
Ellis, Warren. "Grapevine (Shiraz/Richter 99) water relations during berry ripening." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2328.
Full textAbstract:
Thesis (MscAgric (Viticulture and Oenology))--Stellenbosch University, 2008.The effect of various irrigation strategies on grapevine water relations during the berry ripening period was investigated in a Shiraz/Richter 99 vineyard. Comparisons between different irrigation strategies (full/seasonal, véraison+post véraison, post véraison and no irrigation) were made. During the day, the seasonally irrigated vines experienced less water stress than the deficit treatments. Non-irrigated vines seemed to maintain higher diurnal leaf water potentials. Lower leaf water potentials indicated lower water contents in the vegetative and reproductive tissue. Full irrigation seemed to stimulate primary shoot length. Longer water deficit induced earlier and more complete shoot maturation (reserve accumulation). Re-distribution of leaf area on the shoot may occur when vines are subjected to water deficit. Extended water deficit seemed to induce earlier and restricted water loss from vegetative tissue. The water relations were reflected in the berry size. Irrigation during ripening seemed to induce a continuation of berry water loss. Transpiration losses were apparently much higher in fully irrigated vines whereas stomatal control efficiently maintained water relations in non-irrigated vines. Water deficit seemed to have enhanced the soluble solid accumulation. Irrigation treatments did not seem to affect the titratable acid and pH. The post véraison irrigation in particular seemed to favour a wide window for harvesting. Irrigation at post véraison and especially véraison+post veraison seemed to have a greater effect on the synthesis and extraction of phenolics, anthocyanins and tannins in the berry skins. Different irrigation strategies may affect grapes in such a way that different wine styles are obtained.
26
Hadjifilippou, Irineos. "Characterizing the determinants of berry acidity in the grapevine." Master's thesis, ISA/UL, 2018. http://hdl.handle.net/10400.5/17938.
Full textAbstract:
Mestrado Vinifera Euromaster - Viticulture and Enology - Instituto Superior de AgronomiaGlobal warming is expected to be a major issue for grapevine productivity and sustainability in the long-term future. Major grapevine characteristics at berry level (physiological development and com-position) but also at the whole plant level (e.g. sugar accumulation, malic acid respiration, photosyn-thesis rate etc) are expected to be changed by elevated temperatures. In order to further decipher major berry physiology and development traits, data from two different experimental conditions and V.vinifera genotypes were used. The data set from experiment 1 was obtained from three genotypes (Merlot, G7 and G14 which are interspecific crossings of V. vinifera x V. rotundifolia, (macrovine) and possess the trait VDQA – “Vins de qualité à teneur réduite en alcool”, which produce wines with lower alcohol content. Plants were grown in open field conditions and berry development was mon-itored every week since early stages to over-ripeness providing a full berry development curve. In a second trial,76 genotypes were tested at two key stages, at green stage (just before ripening onset) and at ripe stage (maximum berry volume) to explore the diversity of primary metabolites and cations that exist in a progeny of microvine deriving from a cross. The progeny derived from a crossing of V3 microvine (female dwarf plant) with G14. Data analysis provided important information on berry development at limited number (8 berries maximum) and at large number (hundreds) scale for all parameters (glucose + fructose, tartartic acid,malic acid,potassium). In addition, complex berry pa-rameters such as titratable acidity were calculated on the basis of simple parameters (e.g. anions and cations). Finally, our results showed that the genetic variability of V. vinifera is potentially inter-esting to identify QTLs that can be used in breeding programs to develop new grapevine genotypes more suitable to climate change conditions
N/A
27
Dean, Ryan J., Timothy Stait-Gardner, Simon J. Clarke, Suzy Y. Rogiers, and William S. Pricea. "Diffusion Tensor Imaging (DTI) studies of the grape berry." Diffusion fundamentals 16 (2011) 29, S. 1-2, 2011. https://ul.qucosa.de/id/qucosa%3A13762.
Full text
28
Caors, Marielle. "Du vécu à l'imaginaire : le Berry de George Sand." Paris 4, 1986. http://www.theses.fr/1986PA040262.
Full textAbstract:
L'étude du cadre des romans champêtres révèle l'importance des lieux et des paysages chez George Sand, composant une géographie berrichonne qui allie l'évocation de la réalité à la création d'un univers imaginaire. On notera tout d'abord que, dans une topographie habituellement fidèle à un réel bien connu de l'auteur, certaines modifications semblent toucher le lieu central du roman, souvent Nohant même, et lui donner un caractère imaginaire. Cette part d'imaginaire apparait clairement dans des paysages chargés de symboles élémentaires, dominés par la présence du feu, de l'air, de la terre ou de l'eau, domination qui s'étend souvent à tout un roman pour enrichir la simple nécessité spatiale. De plus, l'aspect essentiellement naturel du cadre romanesque, la place de l'homme, semblent véhiculer un message philosophique, l'idéal moral et politique d'une communion de l'homme avec la nature. Enfin, l'évocation du cadre naturel dépend également de la technique descriptive de George Sand et d'abord du système narratif, qui connait une évolution capitale en passant d'une narration traditionnelle, où l'auteur intervient souvent, à une présentation directe du récit par un narrateur précis très différencié de l'auteur. Cette disparition de l'auteur entraine des conséquences d'ordre social et stylistique, les paysans berrichons assumant alors la narration, mais également une restriction de champ : donner la responsabilité de la description à un personnage interdit les jugements esthétiques et les tentatives picturales de l'auteur. L'éparpillement et la diversification des notations remplacent la description tableau, évolution qui semble bien caractéristique des romans champêtres et se clôt avec eux, et montre ainsi le lien indiscutable entre le mode de narration et la vision même de l'auteur, et concilie fidélité au réel et poésie de l'imaginaireA study of the sceneries in George Sand's rustic novels reveals the importance of places and landscapes which compose a geography of Berry, where the calling up of reality and imaginary creation blend. First, we notice that inside a topography usually faithful to a reality well known of the author, some changes seem to affect the main place of the novel, often Nohant itself, and to give it a touch of fantasy. This touch of fantasy can clearly be found in landscapes fraught with elemental symbols, related to the presence of fire, air, earth or water, a presence which often pervades a whole novel, to enrich its mere necessary spatial frame. Moreover, the basically natural landscapes of these novels, and the place that men takes inside them, seem to bear a philosophical message, the moral and political ideal of a communion between man and nature. At last, evoking a natural landscape also depends on George Sand's descriptive technique, and first on the narrative scheme, which undergoes a fundamental evolution from a traditional narration, in which the author often interferes, to a direct presentation of the tale by a precise narrator totally differentiated from the author. This disappearance of the author brings about social and stylistic consequences, since the peasants of berry become responsible for the narration, but also a restricted vision: giving the responsibility of the description to a character forbids the author's aesthetic judgements and her attempts at rivaling painters in her descriptions. Scattered and diverse notations take the place of a description that aims at equaling a picture. This evolution seems quite characteristic of rustic novels and stops with them, and thus shows the unquestionable link between the way of narrating and the very vision of the author and conciliates her faithfulness to reality and her poetic imagination
29
Perrochon, Cécile. "L'architecture bénédictine en Berry aux XIe et XIIe siècles." Paris 10, 2005. http://www.theses.fr/2005PA100085.
Full textAbstract:
Le monachisme bénédictin, solidement implanté en Berry, y connut son plein épanouissement aux XIe et XIIe siècles. Nombreux étaient les édifices religieux qui, à cette période, relevaient de la règle de saint Benoît. Aujourd'hui, certains constituent des exemples particulièrement remarquables de l'art roman. Treize abbayes furent fondées entre 613 et 1093 ; d'elles dépendaient trois cent vingt et une églises berrichonnes. L'analyse architecturale des premières met en évidence des éléments structurels et fonctionnels récurrents, plus ou moins sensibles dans les secondes. L'évocation d'édifices non bénédictins de la région montre cependant que les églises qui forment le corpus de cette étude leur sont étroitement apparentées ; il n'existe donc pas de caractéristiques artistiques particulières à l'ordre, dont le rôle s'est probablement limité à favoriser l'impact exercé sur le Berry par plusieurs grands établissements comme Cluny ou Saint-Benoît-sur-LoireBenedictine monachism was firmly established in Berry, and thrived there throughout the XIth and XIIth centuries. In those times, numerous were the religious edifices which depended on saint Benedict's rule. Nowadays, some of them constitute particularly noticeable examples of romanesque art. Between 613 and 1093, thirteen abbeys were founded. They ruled over three hundred and twenty one churches scattered all over Berry. The architectural analysis of the formers throws light on recurring structural as well as functional elements which seem less obvious in the latters. For that matter, considering the non benedictine edifices of the area shows that they bear a close relation to the churches on which this study focuses. We can therefore infer that there are no artistic characteristics specific to that order, whose role was probably limited to spreading the influence of such great monasteries as Cluny or Saint-Benoît-sur-Loire
30
Gibbs, Jared Andrew. ""The Length of Our Vision": Thoreau, Berry, and Sustainability." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/32277.
Full textAbstract:
The past several years have seen increased awareness of environmental degradation,
climate change, and energy concernsâ and with good reason; addressing the problem of sustainability is vital if American culture is to both persist and thrive. Because this issue affects all aspects of our lives, it can easily seem overwhelming, encouraging the belief that solutions to these problems lie beyond the scope of individual action. This study seeks to identify legitimate personal responses one can make to issues of sustainability.
I approach this subject with an eye toward answering a simple series of questions: Where
are we?; How did we get here?; Where are we going?; Is that where we want to go? I briefly
investigate the history of the idea of progress, focusing especially on our cultureâ s fascination
with and embrace of technological progress. Following this investigation, I examine two works
that offer critiques of progress: Thoreauâ s classic text, Walden, and Wendell Berryâ s, The
Unsettling of America. These texts are chosen for a few reasons. First, a clear tradition of
critical inquiry can be traced from Thoreau to Berry. Second, the historical distance between
these authors makes a comparison of their work particularly illuminating. Though they are
citizens of the same country, speak the same language, and ask similar questions, each author
writes in response to different worldsâ Thoreauâ s just beginning to embrace industrial capitalism
and technological progress, and Berryâ s very much the product of that embrace. Most importantly, however, both authors focus on individual action and responsibility.Master of Arts
31
Caors, Marielle. "Du vécu à l'imaginaire le Berry de George Sand." Lille 3 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb375962451.
Full text
32
Caors, Marielle. "George Sand et le Berry : paysages champêtres et romanesques /." Paris : Royer, 1999. http://catalogue.bnf.fr/ark:/12148/cb37702961q.
Full text
33
Dean, Ryan J., Timothy Stait-Gardner, Simon J. Clarke, Suzy Y. Rogiers, and William S. Pricea. "Diffusion Tensor Imaging (DTI) studies of the grape berry." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-184852.
Full text
34
Michaud-Fréjaville, Françoise. "Économie et vie rurales en Berry à la fin du Moyen Age." Paris 1, 1997. http://www.theses.fr/1997PA010695.
Full textAbstract:
Le Berry oppose à une partie centrale de plateaux calcaires secs coupes de vallées, une périphérie verdoyante et humide, parfois accidentée : l'opposition humaine et économique entre ces deux caractères sous-tend largement l'étude. À la fin du Moyen Age, la désertification humaine du centre, où se mirent en place à la faveur des premières crises démographiques de très vastes métairies tournées à la fois vers l’élevage de nombreux moutons et la céréaliculture extensive, accentué l'impression de grande activité et d'assez riche diversité des "pays" de la couronne, ou la polyculture vivrière en champs ouverts s’équilibrait avec un élevage diversifié. La vigne connut au XIVe siècle un développement tout particulier. Les deux reconstructions de 1370-1400 et 1440-1490, séparées par le dépression des années 1412-1436 qui aurait vu la population diminuer les deux tiers, se sont faites sans véritable modification des charges et pouvoirs seigneuriaux laïcs ou ecclésiastiques. Les franchises berrichonnes ne favorisaient pas la constitution de communautés villageoises très autonomes, et des droits archaïsants ("juilleries", joutes, pots cassés) manifestèrent le poids des usages. La période a connu néanmoins une très nette diminution du servage dans la partie nord royale et en sancerrois, alors que le bas Berry et la zone proche du bourbonnais ont maintenu de puissants liens de servitude personnelle jusqu'aux temps modernes. La nécessité, surtout ressentie par les établissements religieux, d'accroitre les revenus seigneuriaux a entrainé, comme ailleurs, l'installation de nouvelles exploitations prises sur les friches et sur les pâturages autrefois communs. Une redistribution des cultures s'est accomplie par la réduction et la concentration des vignes, une nouvelle place donnée aux chènevières et surtout le début de la mise en place du bocage sur une large bande périphérique du Berry alors que le paysage des champagnes ouvertes s'est systématisé dans la zone centrale. C'est la naissance des paysages actuels berrichonsThere is an opposition in Berry between the dry central chalk plateaus brocken with walleys an a green, humid and in places hilly periphery : the human an economic opposition between the two characteristics largely underlies this research. Towards the end of the middle ages, the population grew scarce in the central area where the early demographic crises brought about very larges "metairies" (farms) dealing both with large-scale sheep rearing and extensive cereal farming. This confirm an impression of great activity and fairy rich diversity of the surrounding "pays", where openfield mixed-farming for food was on a par with cattle an sheep raising. Vine growing went through a very particular phase of development in the xivth century. The two periods of reconstruction 1370-1400 and 1440-1490, separated by the depression of the years 1412-1436 (which may have seen the population reduced to one third), occurred without any significant modification of the charges and pressure exested by thhe lay and ecclesiatical authorities. Franchises in Berry did not facilitate the setting up of really autonomous village communities, but archaic rights ("juillerie", jousts an such like pleasantries)show the strength of tradition. The period none the less knew a very marked decrease of serfdom in the northern royal part and in sancerre area, whereas the low Berry and a nearby zone of the bourbonnais maintained a powerful network of personal bondage up to the modern times. The necessity to increase feudal revenue - especially felt by religious establishments - brought about, as elsewhere, the creation of small-holdings gained over fallow land and previously common grazing land. A reallocation of arable land was carried about by a reduction and accentuation of vineyards and a new role was given over to hemp. This was also the begining of the edge-landscape over a wide peripheral strip of Berry, while the open field developped systematically in the central zone. Such was the begining of the present-day landscape of Berry
35
Russi, Kevin. "Kritische Analyse der Verwendung der Berry Ratio beim Transfer Pricing." St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/02601771002/$FILE/02601771002.pdf.
Full text
36
Rifi, Khalid. "Bornes de Berry-Esséen pour les statistiques de rangs sérielles." Doctoral thesis, Universite Libre de Bruxelles, 1993. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212821.
Full text
37
Boss, Paul K. "The molecular biology of anthocyanin biosynthesis in grape berry skins." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phb745.pdf.
Full text
38
Kurcbart, Samuel Maier [UNESP]. "Estudo sobre uma formulação invariante para a fase de Berry." Universidade Estadual Paulista (UNESP), 1989. http://hdl.handle.net/11449/132620.
Full textAbstract:
Made available in DSpace on 2016-01-13T13:27:22Z (GMT). No. of bitstreams: 0
Previous issue date: 1989. Added 1 bitstream(s) on 2016-01-13T13:32:44Z : No. of bitstreams: 1
000027530.pdf: 5884686 bytes, checksum: a721693dfcba97004e0cac16aea9fb4d (MD5)
39
Kurcbart, Samuel Maier. "Estudo sobre uma formulação invariante para a fase de Berry /." São Paulo : [s.n.], 1989. http://hdl.handle.net/11449/132620.
Full text
40
Bou, Nader Khalil. "Grapevine age : Impact on physiology and berry and wine quality." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0329/document.
Full textAbstract:
L’âge de la vigne et sa relation avec la qualité du vin sont des sujets d’intérêt récurrents, tant scientifiques qu’économiques. Les consommateurs et acteurs de la filière vitivinicole semblent s’accorder à propos de la capacité des vieilles vignes à produire des vins de caractère supérieur. Malgré les recherches en cours, la validité de ce point de vue reste débattue et les questions concernant les mécanismes à travers lesquels de vieilles vignes aboutiraient à des vins qualité supérieure restent nombreuses. Pour tenter d’y répondre, l’impact de l’âge des vignes sur la physiologie, la tolérance au stress hydrique, ainsi que la qualité des baies et du vin ont été étudiés dans un vignoble expérimental constitué de plants de Vitis vinifera L. cv. de matériel génétique identique (Riesling de clone Gm 239 greffé sur 5C Teleki) mais aux dates de plantation différentes.En 2014 et 2015, les vignes plantées en 2012 n’avaient pas encore atteint leur plein potentiel et avaient une productivité végétative et un rendement significativement inférieurs à ceux des vignes plantées en 1995 et 1971. Par ailleurs, les vignes plantées en 2012 n’ont pas été soumises au même traitement d’enherbement que les vignes plus âgées pendant cette période afin de prévenir une compétition excessive pendant leur établissement. La capacité inférieure de ces vignes et l’absence d’enherbement ont mené à une plus grande exposition des grappes à la lumière et une plus grande accumulation d’azote, ce qui s’est traduit par une plus grande concentration en acides aminés, monoterpènes, norisoprénoides, et flavonols en 2014 et 2015. Les années suivantes (2016 et 2017), le rendement et le poids des bois de taille de ces vignes, ainsi que la composition des baies, étaient comparables à ceux des vignes plus âgées. Les paramètres de maturité technologique (°Brix, l’acidité totale et le pH de moûts) n’ont pas été significativement affectés par l’âge des vignes. […]Des analyses sensorielles et chimiques ont été réalisées en 2017 sur des vins de millésimes précédents. Les vins des plus jeunes vignes ont été associés à des arômes de fruits mûrs et de l’arôme de pétrole typique du Riesling. Ces vins ont aussi été identifiés par de plus hautes concentrations de monoterpènes et norisoprénoides potentiels et de composés soufrés volatils, en 2014 et 2015 uniquement. Les profils sensoriels et chimiques de vins issus des vignes plantées en 1995 et 1971 étaient dépendants du millésime mais pas de l’âge des vignes. Les profils des vins produits en 2016 étaient en superposables pour les trois groupes d’âge.Les travaux décrits dans ce manuscrit de thèse sont uniques, du fait notamment que le vignoble dans lequel ils ont été conduits a été conçu spécifiquement pour étudier l’effet de l’âge de la vigne dans des conditions environnementales comparables. Une fois que les vignes les plus jeunes ont atteint leur potentiel fructifère et ont été conduites de la même manière que les vignes plus âgées, leur productivité, la composition de leurs baies et la qualité des vins qu’elles produisent ont convergé avec celles des deux autres groupes. Plus intéressant encore, des vignes âgées de 19 et 43 ans se sont comportées de la même façon tout au long de l’étude et ont abouti à des vins comparables en termes d’analyses sensorielles, ce qui va à l’encontre de l’idée reçue qui veut que les vignes les plus âgées produisent des vins de qualité différente.Des travaux précédents ont démontré que la productivité des vignes, quel que soit leur âge, pouvait être expliquée par les réserves de bois et par la taille du tronc. Pour avoir une meilleure idée des différences liées aux réserves, la technique dite « structure-from-motion with multi-view stereo-photogrammetry » (SfM-MVS) a été testée pour mesurer l’épaisseur des troncs et leur volume. Cette technique qui permet la création de modèles tridimensionnels géo-référencés et à l’échelle a pu générer des modèles précis de tronc de vignes plantées en champVine age and its relation to the quality of the wine are topics of recurring interest, both scientific and economic. Consumers and actors in the wine sector seem to agree on the ability of old vines to produce wines of superior character. Despite ongoing research, the validity of this point of view remains debated and questions about the mechanisms through which old vines would end up with superior quality wines remain numerous. To try to answer them, the impact vine age on physiology, tolerance to water stress, and berry and wine quality were studied in an experimental vineyard planted with Vitis vinifera L. cv. of identical genetic material (Riesling Gm 239 grafted on 5C Teleki) but planted in different years.In 2014 and 2015, the vines planted in 2012 had not yet reached their full potential and had a significantly lower vegetative productivity and yield than the vines planted in 1995 and 1971. Moreover, the vines planted in 2012 were not subjected to the same grass treatment as older vines during this period to prevent excessive competition during establishment. The lower capacity of these vines and the absence of cover crop led to greater exposure of clusters to light and greater nitrogen accumulation, which resulted in a higher concentration of amino acids, monoterpenes, norisoprenoids, and flavonols in 2014 and 2015. In the following years (2016 and 2017), the yield and pruning weight of these vines, as well as their berry composition, were comparable to those of the older vines. The parameters of technological maturity (° Brix, total acidity and must pH) were not significantly affected by vine age.Vines planted in 1995 and 1971 showed similar physiological characteristics throughout the study with the exception of a higher incidence of esca syndrome in the older group. This disease was responsible for the decline in the total yield of vines planted in 1971, but individual yield per vine was equivalent for both groups.Sensory and chemical analyzes were conducted in 2017 on wines from previous vintages. The wines of the youngest vines were associated with aromas of ripe fruit and the kerosene aroma that is typical of Riesling. These wines were also identified by higher concentrations of potential monoterpenes and norisoprenoids and volatile sulfur compounds in 2014 and 2015 only. The sensory and chemical profiles of wines from vineyards planted in 1995 and 1971 were dependent on the vintage but not on the age of the vines. The wine profiles produced in 2016 were overlapping for the three age groups.The works described in this thesis manuscript are unique, particularly because the vineyard in which they were conducted was designed specifically to study the effect of the age of the vine under comparable environmental conditions. Once the youngest vines reached their fruiting potential and were conducted in the same way as the older vines, their productivity, the composition of their berries and the quality of the wines they produce converged with those of the two other groups. More interestingly, vines aged 19 and 43 years behaved similarly throughout the study and resulted in wines comparable in terms of sensory analysis, which goes against the an idea that the older vines produce wines of a different profile.Previous studies have shown that the productivity of the vines, whatever their age, could be explained by the wood reserves and the size of the trunk. To have a better idea of differences linked to reserves, the structure-from-motion with multi-view stereo-photogrammetry (SfM-MVS) method was tested to measure trunk thickness and volume. The technique, which allows the creation of scaled, georeferenced 3D models based on photographs, was able to produce accurate models of field-grown grapevine trunks
41
D'Urso, Gilda. "Integrated metabolomics approaches for berry fruit used in nutraceutical formulations." Doctoral thesis, Universita degli studi di Salerno, 2016. http://hdl.handle.net/10556/2225.
Full textAbstract:
2014 - 2015The species under investigation during these three years of PhD course were: Fragaria ananassa, Fragaria vesca, Morus alba, Morus nigra and Myrtus communis. All these species are characterized by the production of small fruits, and all of them are plant species that can be used for the formulation of plant food supplements, in fact they are reported into the official list of Italian legislation (DM 9 luglio 2012- G.U. 21-7-2012, serie generale n. 169, and update on March 27, 2014). Some of them are recognized as traditional food products of Italian region, like Fragaria vesca, that is typical of Campania region and Myrtus communis, that is typical of Sardinia... [edited by author]
XIV n.s.
42
Manini, Nicola. "Electron-Vibron Coupling in Charged Fullerene, Berry Phases and Superconductivity." Doctoral thesis, SISSA, 1996. http://hdl.handle.net/20.500.11767/3874.
Full text
43
Peretto, Greta. "POST-HARVEST AS A TOOL TO IMPROVE BERRY FRUIT QUALITY." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3424546.
Full textAbstract:
The purpose of this thesis was to research some innovative post-harvest techniques with potential to extend the shelf-life of berry fruit during storage and enhance their overall quality. Emphasis was given to different packaging system, in particular microperforated film, edible film, and electrostatic spraying of antimicrobial coating. The berry fruits studied were blueberry and strawberry. These fruits were selected because of their increasing worldwide consumption, among the many different types of berries.
The application of microperforated polypropylene film to store freshly harvested blueberries, demonstrated the importance of selecting a proper packaging to increase the storage period and maintain the quality attributes of the fruit. The number of microperforations made to the film (1, 10, and 30) created a passive modified atmosphere within the package that led to improvement of firmness and antioxidant activity of the fruit, throughout their storage period. Equilibrium atmosphere within the packaging was achieved after two days of storage and the concentration of gases remained constant for the rest of the storage period. This stable atmospheric condition resulted in an extension of the shelf-life of blueberry for up to 16 days, at 4°C.
Strawberry shelf-life extension and quality improvements were obtained by storing the fruit in clamshells that contained strawberry puree edible films infused with carvacrol and methyl cinnamate. The strawberry puree edible films served as matrix for the controlled release of natural antimicrobial’s (Carvacrol and methyl cinnamate) vapors, over time. Fresh strawberries packed in clamshells had an extended shelf life of 10 days, at 10◦C and 90% RH. The released vapors from the strawberry puree edible film extended the strawberry shelf-life by delaying spoilage of the fruit and improved main quality-related attributes, such as firmness and brightness. The natural antimicrobial vapors also increased the total soluble phenolic content and antioxidant activity of the stored strawberry.
Besides microbial spoilage, that limits strawberry shelf-life, the presence of foodborne pathogens bacteria that can be carried by the fruit as result of contamination, is another important issue that can lead to serious outbreaks. Antimicrobial edible coatings can be an effective post-harvest technique to assure microbial safety and, at the same time, retain overall quality of the fruit. Antimicrobial alginate coating was developed and optimized using response surface methodology. Antimicrobial activity against Escherichia coli O157:H7 and Botrytis cinerea, as well as physical properties such as viscosity, turbidity and whitish index of the coating were also optimized based on carvacrol and methyl cinnamate concentration.
After the optimization, the resulted antimicrobial coating solution was applied on the surface of freshly harvested strawberry fruit using an electrostatic spraying technology. This technology presented unique advantage with regard to transfer efficiency and evenness application of the antimicrobial coating solution. The antimicrobial coating application led to a significant increase on strawberry shelf-life. Additionally, the strawberry coated using the electrostatic spraying technology presented a significant reduction of visible decay of four days compared to not-coated fruit, and of one day compared to fruit coated with conventional spray method. Moreover, the firmness and color of the strawberries were improved by coating the fruit using the electrostatic spraying technology. Therefore, electrostatic spraying could be considered a potential technology for the commercial application of liquid coating to extend the shelf-life and improve the post-harvest quality of strawberry and other perishable fruits.Questa tesi è stata volta alla ricerca di alcune tecniche innovative da adottare nel post-raccolta per la conservazione di piccoli frutti, al fine di allungarne la shelf-life e, allo stesso tempo, migliorarne le caratteristiche qualitative. Particolare attenzione è stata posta allo sviluppo e utilizzo di diversi tipi di confezionamento (packaging), in particolare film micro perforati, film edibili, e coating edibili applicati mediante tecnologia spray elettrostatica. Fragole (Fragaria x ananassa) e mirtilli (Vaccinium), tra i diversi tipi di piccoli frutti disponibili sul mercato, sono stati selezionati come modelli di studio a causa del loro crescente consumo globale e importanza economica. Nel primo studio, film in polipropilene micro perforati sono stati utilizzati per la conservazione di mirtilli freschi. La selezione di tali film ha evidenziato l’importanza di utilizzare un packaging opportuno (in base alle caratteristiche ambientali e del prodotto) al fine di allungare il periodo di conservazione del frutto mantenendo allo stesso tempo ottimali caratteristiche qualitative. Le tre diverse intensità di micro perforazioni (1, 10, e 30, create mediante tecnologia laser e dal diametro di 0,1 mm) hanno originato un’ atmosfera modificata passiva all’interno della confezione dovuta alla respirazione del frutto stesso. Tale atmosfera ha causato un miglioramento della consistenza dei mirtilli e un sostanziale incremento dell’attività antiossidasica durante tutto il periodo di confezionamento. All’interno delle confezioni l’equilibrio atmosferico, tra ossigeno consumato ed anidride carbonica prodotta durante il processo di respirazione, è stato ottenuto dopo due giorni di conservazione e mantenuto tale per tutto il periodo di conservazione. Questa particolare condizione di stabilità atmosferica ha determinato un allungamento della shelf-life dei mirtilli fono a 16 giorni a 4 °C. Il secondo studio ha visto l’ottenimento dell’estensione della shelf-life e il miglioramento delle caratteristiche qualitative di fragole fresche, utilizzando delle confezioni commerciali in cui erano stati applicati film edibili. Tali film ottenuti da purè di fragole erano stati arricchiti con carvacrolo e metile cinammato, due oli essenziali naturali dal potere antimicrobico. Il film edibile, fungendo da vettore, ha permesso il rilascio graduale dei vapori degli oli essenziali nel tempo. La shelf-life delle fragole conservate con questo packaging a 10 °C e con il 90% di umidità relativa è aumentata fino a 10 giorni, grazie al potere antimicrobico dei vapori degli oli essenziali che hanno ritardato lo sviluppo microbico sulla superficie del frutto, di conseguenza aumentando anche alcune caratteristiche qualitative come ad esempio la brillantezza e la compattezza. Anche la capacità antiossidasica totale e il contenuto di fenoli è aumentato a causa dell’effetto dei vapori di carvacrolo e metile cinnamato. Lo sviluppo microbico, e in particolare di muffe, è solo uno degli aspetti che limitano il consumo di fragole fresche. Infatti, la presenza di microorganismi patogeni di origine alimentare è molto diffusa soprattutto su prodotti freschi e deperibili come le fragole che non vengono lavate dopo la raccolta e possono fungere da vettore di tali batteri patogeni e causare serie epidemie. Considerando tale problematica, l’utilizzo di coating edibili con azione antimicrobica (direttamente applicati sulla superficie del frutto) possono essere considerati una valida soluzione per garantire sicurezza microbiologica e allo stesso tempo per mantenere inalterate le caratteristiche qualitative del frutto. L’attenzione del terzo studio è stata rivolta allo sviluppo e ottimizzazione di un coating antimicrobico di alginato di sodio utilizzando una collezione di metodi statistici e matematici definiti come response surface methodology (RSM). L’attività antimicrobica nei confronti di Escherichia coli O157:H7 e Botrytis cinerea, e alcune caratteristiche fisiche della soluzione, come ad esempio la viscosità, turbidità e indice del bianco (Wi) sono stati ottimizzati sulla base delle concentrazioni dei componenti antimicrobici selezionati (carvacrolo e metile cinnamato). Dopo l’ottimizzazione e lo sviluppo del coating di alginato, lo stesso coating è stato applicato su fragole fresche utilizzando la tecnologia spray elettrostatica caratterizzata dal vantaggio di creare maggiore resa e uniformità di coating rispetto ad una comune tecnologia spray. L’applicazione di tale coating elettrostatico ha reso possibile una estensione della shelf-life delle fragole trattate e una significativa e visibile riduzione di muffe presenti sui frutti pari a quattro giorni di ritardo quando paragonato alle fragole non trattate e un giorno nei confronti delle fragole trattate con una comune tecnologia spray. Inoltre, la compattezza e il colore delle fragole è migliorata durante il periodo di conservazione quando il metodo elettrostatico è stato utilizzato.
44
Scheid, Daniel P. "The nature of revelation and the revelation of nature Paul Tillich and Thomas Berry /." Online full text .pdf document, available to Fuller patrons only, 2003. http://www.tren.com.
Full text
45
Correia, Carlos André Silva. "O sombreamento como técnica de monda de flores e bagos nas cultivares de uva de mesa "Sugraone" e "Crimson seedless"." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5352.
Full textAbstract:
Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaExcessive berry set reduces cluster quality in table grapes. In this trial, it was evaluated a new technique to reduce berry set, by decreasing about 70% the light intensity. The study was conducted in two seedless cultivars, Sugraone and Crimson Seedless, and consisted in three treatments: application of 1 ppm of gibberellic acid at the end of bloom; application of an artificial net over the plants, at the same timing, for 7 days on Sugraone and 14 days in Crimson; and a control, where no berry thinning method was conducted at bloom. The number of flowers and berries drop was counted. Net photosynthesis, transpiration and stomatal conductance were recorded, during and after shading, and berries diameter was measured. At harvest, yields were recorded and quality parameters were analyzed. In general, there were no significant differences in cumulative fall of flowers and berries between treatments. Despite the reduction in photosynthesis, during the shadow, the diameter of berries of the shade treatment was similar to the other treatments. Shade treatment in Crimson Seedless led to less compact clusters.
46
Nóbrega, Hugo Paulo Vale. "Utilização de redes de ensombramento para monda de bagos em uva de mesa." Master's thesis, ISA, 2013. http://hdl.handle.net/10400.5/6703.
Full textAbstract:
Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaThe major difficulty in the production of seedless table grapes is the excessive fruit-set and the reduced berry size, decreasing the quality of production. Different types of berry and flower thinning, with GA3 application with different doses and shading were studied. 100% of light intensity reduction, during flowering led to a almost complete berry drop in ‘Thompson Seedless’. When 95% of shading was imposed beginning at 50% and 100% bloom, the final number of berries was reduced in 62% and 70%, respectively, leading to a less compact bunch. The decrease of light intensity, led to a reduction of 48% in the final number of berries per bunch in ‘Crimson Seedless’. The GA3 treatments in ‘Thompson’, reduced the final number of berries at harvest, except when GA3 was applied only to bunches. In ‘Crimson’ the treatment four times de commercial dose, GA3[4x], resulted in a reduction of 29% of berries at harvest. GA3 applied to bunches of ‘Thompson’ produced berries with more elongated shapes and heavier berries, compared with GA3 application to the leaves. 'Thompson' proved to be more sensitive to shade and less to GA3 applications, than 'Crimson'.
47
Lacayo, Parajon Ligia Isabel. "Use of #Beauveria bassiana' (Bals.) Vuill. for the control of #Hypothenemus hampei' Ferr. and #Plutella xylostella' L. in Nicaragua." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362783.
Full text
48
Hirschberger, Maximilian Anton. "Quasiparticle Excitations with Berry Curvature in Insulating Magnets and Weyl Semimetals." Thesis, Princeton University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10286472.
Full textAbstract:
The concept of the geometric Berry phase of the quantum mechanical wave function has led to a better theoretical understanding of natural phenomena in all fields of fundamental physics research. In condensed matter physics, the impact of this theoretical discovery has been particularly profound: The quantum Hall effect, the anomalous Hall effect, the quantum spin Hall effect, magnetic skyrmions, topological insulators, and topological semimetals are but a few subfields that have witnessed rapid developments over the three decades since Michael Berry's landmark paper. In this thesis, I will present and discuss the results of three experiments where Berry's phase leads to qualitatively new transport behavior of electrons or magnetic spin excitations in solids.
We introduce the theoretical framework that leads to the prediction of a thermal Hall effect of magnons in Cu(1,3-bdc), a simple two-dimensional layered ferromagnet on a Kagomé net of spin S = 1/2 copper atoms. Combining our experimental results measured down to very low temperatures T = 0.3 K with published data from inelastic neutron scattering, we report a quantitative comparison with the theory. This confirms the expected net Berry curvature of the magnon band dispersion in this material.
Secondly, we have studied the thermal Hall effect in the frustrated pyrochlore magnet Tb2Ti2O7, where the thermal Hall effect is large in the absence of long-range magnetic order. We establish the magnetic nature of the thermal Hall effect in Tb2Ti2O7, introducing this material as the first example of a paramagnet with non-trivial low-lying spin excitations. Comparing our results to other materials with zero thermal Hall effect such as the classical spin ice Dy2Ti 2O7 and the non-magnetic analogue Y2Ti2O 7, we carefully discuss the experimental limitations of our setup and rule out spurious background signals.
The third and final chapter of this thesis is dedicated to electrical transport and thermopower experiments on the half-Heusler material GdPtBi. A careful doping study of the negative longitudinal magnetoresistance (LMR) establishes GdPtBi as a new material platform to study the physical properties of a simple Weyl metal with only two Weyl points (for magnetic field along the crystallographic ⟨111⟩ direction). The negative LMR is associated with the theory of the chiral anomaly in solids, and a direct consequence of the nonzero Berry curvature of the energy band structure of a Weyl semimetal. We compare our results to detailed calculations of the electronic band structure. Moving beyond the negative LMR, we report for the first time the effect of the chiral anomaly on the longitudinal thermopower in a Weyl semimetal.
49
Maamache, Mustapha. "Phase de berry, angle de annay et etats coherents action angle." Nice, 1993. http://www.theses.fr/1993NICE4625.
Full textAbstract:
Ce travail de physique theorique porte sur les relations entre la phase de berry et l'angle de hannay qui sont deux notions geometriques decrivant des transports naturels en physique respectivement quantique et classique. Le but principal de ce travail a ete d'elaborer un nouveau formalisme, celui des etats quantiques action angle (generalisation des etats coherents de l'oscillateur harmonique), dans lequel le transport classique apparait comme un cas particulier du transport quantique. Cela a permis non seulement d'etablir plusieurs derivations quantiques inedites de l'angle de hannay, mais aussi d'apporter des eclairages originaux sur la relation entre la phase de berry et l'angle de hannay a travers l'introduction des notions de principe variationnel moyenne ou de minimisation de metriques sur les etats quantiques ou les trajectoires classiques. Le rapport entre la phase de berry et l'angle de hannay a egalement ete examine dans le cas des systemes grassmaniens
50
Berdeja, Aramayo Mariam. "Effects of water stress and rootstock genotype on grape berry composition." Thesis, Bordeaux 2, 2013. http://www.theses.fr/2013BOR22103/document.
Full textAbstract:
Au cours des prochaines années, il est prédit que le changement climatique va influencer la production des cultures et impacter négativement le secteur agricole. Parmi les cultures mondiales majeures, la vigne est cultivée pour ses baies, qui sont la base de produits à forte valeur ajoutée (vin, liqueurs, et métabolites secondaires utilisés dans les industries pharmaceutiques et cosmétologiques) et dont le métabolisme est fortement sensible au climat. Cependant, la réponse au niveau de la composition de la baie ainsi que les mécanismes moléculaires sous-jacents mettant en évidence la capacité de l’interaction porte-greffe/greffon à influencer le métabolisme de la baie dans des conditions de stress hydrique est encore très peu étudiée et compris. Dans ce contexte, cette thèse a eu pour objectifs de répondre à ces questionnements en combinant des approches ecophysiologique, biochimique et transcriptomique. Vitis vinifera cv. Pinot noir greffé soit sur le porte greffe 110R (tolérance à la sécheresse, vigueur conférée moyenne à forte) ou 125AA (sensible à la sécheresse, forte vigueur conférée) ont été étudié au cours de 3 années (2009, 2010 et 2011), au vignoble et dans des conditions témoin (pluviométrie normale) ou de stress hydrique provoqué. Différents paramètres physiologiques (statut hydrique et rendement) ainsi que le profil métabolique de la baie (sucres, acides organiques, acides aminés et anthocyanes) ont été caractérisés à quatre stades de développement (E-L 33, E-L 35, E-L 36, E-L 38). D’autre part, une analyse microarray sur génome complet a également été réalisée pour deux années (2009 et 2010) et deux stades de développement critiques et représentatifs (E-L 35 et E-L 36). Dans son ensemble, cette thèse fournit des nouveaux éléments concernant la réponse métabolique de la baie au porte-greffe et à la contrainte hydrique, et met en évidence des possibles mécanismes moléculaires impliqués dans cette réponseClimate change is expected to influence crop production and to impact negatively the agricultural sector in the future. Among the major crops cultivated worldwide, grapevine provides berries that are the basis of high added value products (wines, liquors, and secondary metabolites used in the pharmaceutical and cosmetological industry) and whose metabolism is strongly sensitive to climate (vintage effect). However, the response of berry composition and the molecular mechanisms underlying the ability of rootstock/scion interaction to influence grape berry metabolism under drought stress are still poorly understood. In this context, this work aimed to fill the gaps on the aforementioned questions by combining comprehensive ecophysiological measurements, detailed metabolite analysis, and whole-genome transcriptome analysis. Vitis vinifera cv. Pinot noir grafted on either rootstock 110R (drought tolerant, mid- to high vigor) or 125AA (drought sensitive, high vigor) were studied during three growing seasons (2009, 2010, and 2011) in the field under normal rainfall or water shortage conditions. We characterized different physiological parameters (water status and yield components) and berry metabolomic profiles (sugars, organic acids, free amino acids and anthocyanins) during four developmental stages (E-L 33, E-L 35, E-L 36, E-L 38). Besides we also performed a microarray analysis in two years (2009 and 2010) at two critical and representative developmental stages (E-L 35 and E-L 36). Overall, this work provides novel insights into the response of grape berry metabolites to rootstock and to drought and uncovers some possible molecular mechanisms underlying the berry response to different rootstock/water status combinations