Search results for "Geta"

showing 10 items of 3789 documents

Flore du blé d’hiver, les facteurs qui influencent sa composition et sa diversité

2014

EA SPE EcolDur EJ2 CT3; National audience; Contexte - Cet article fait suite à une description, dans Phytoma n° 678, de l'évolution de la flore adventice du blé d hiver en France depuis quarante ans, basée sur le travail de Barralis & al. dans les années 1970 et celui du réseau Biovigilance Flore de 2002 à 2010. Il cherche à expliquer ces évolutions. Évolution de la flore - Ce travail a permis de confirmer et évaluer l'influence, sur la flore globale et sa diversité, de la zone géographique, des facteurs pédo-climatiques, du type d'agriculture et des pratiques culturales : notamment IFT herbicide (mesure de l'IC, indice de contrôle) et travail du sol. Analyse par espèce - Une analyse statis…

pratiques culturales[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesflore adventice[SDV]Life Sciences [q-bio]réseau biovigilance flore[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologyble d'hiverévolution
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Vite: primavera 2011 a rischio peronospora?

2011

previsione infezioniperonospora della viteSettore AGR/12 - Patologia Vegetalesicilia
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Influence of microbial diversity on soil organic carbon dynamics highlighted by a 13C-labelling technique

2012

Soil organic matter (SOM) represents the main pool of carbon within the biosphere, estimated at roughly twice that in atmospheric CO2. In agrosystems, organic amendments are common to maintain soil C stocks. However, recent studies have revealed that these practices can lead to a priming effect, corresponding to enhanced release of CO2 into the atmosphere, due to over-mineralisation of soil organic carbon. Therefore, appropriate decisions regarding organic input management require better understanding of the biogeochemical cycles related to SOM dynamics. As soil microorganisms are major actors in SOM turnover, their diversity is likely to influence SOM dynamics. In this context, the relatio…

priming effect[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciencesmicrobiologie du sol[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologycarbone du sol
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Peut-on concilier un faible usage de pesticides, une bonne performance économique et environnementale ? Analyse d’un réseau national de fermes de dém…

2017

Feeding an increasing world population with a sustainable agriculture is one of the greatest challenges of this century. The reduction of the reliance on pesticides is a critical aspect in this quest for sustainability. Whether cropping systems with reduced reliance on pesticides would be able to reconcile the various components of sustainability remains however a matter of debate. Are they as productive and profitable than current mainstream cropping systems? Here the objective is to study the feasibility of a reduced reliance on pesticides in France. We used a unique dataset from a national network of more than thousand arable commercial farms between 2009 and 2011. Launched in the framew…

production situation[SDE] Environmental Sciencesdurabilitépesticidescropping systemsustainabilityréseau de fermesfarm networkmulticriteria assessment[SDV] Life Sciences [q-bio]situation de productionévaluation multicritère[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysystème de culture
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Mapping productivity and essential biophysical parameters of cultivated tropical grasslands from sentinel-2 imagery.

2020

Nitrogen (N) is the main nutrient element that maintains productivity in forages

productivityTeledetecció010504 meteorology & atmospheric sciencesNitrogenTropical and subtropical grasslands savannas and shrublandsUrochloa brizanthaBiomassaPanicum01 natural sciencesNormalized Difference Vegetation IndexGrasslandCapim Urochloalcsh:AgriculturePastagemremote sensingVegetation indexUrochloaNitrogênioLeaf area indexPASTAGENS0105 earth and related environmental sciencesProductivityBiomass (ecology)geographygeography.geographical_feature_categoryleaf area indexbiology<i>Panicum</i>PasturesUrochloa decumbenslcsh:S04 agricultural and veterinary sciencesVegetationRemote sensingbiology.organism_classificationTropical grasslandsBiomass productionAgronomyProductivity (ecology)vegetation indicesLeaf area index040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceSentinel-2<i>Urochloa</i>Agronomy and Crop ScienceImatges ProcessamentSensoriamento Remoto
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Productive Efficiency of Decanters with Short and Variable Dynamic Pressure Cones

2003

Abstract This paper presents the results of experimental trials carried out on third-generation, variable dynamic pressure cone decanters to assess machine performance and adjust the process parameters for optimum extraction yield. The results obtained led to the following conclusions: the regulation of the differential velocity screw/bowl allows a better performance of the decanter at low dilutions of the olive paste; it is possible to obtain high efficiency at a low dilution of the olive paste achieving a higher minor compounds content and the more advanced system of regulation leads to better results according to the variations of the ratio between liquid and solid phases, thus optimisin…

productivityYield (engineering)Materials sciencebusiness.industrydesignExtraction (chemistry)Soil ScienceMineralogydecanterDilutionVariable (computer science)Vegetable oilRheologydecanter; productivity; designControl and Systems EngineeringPhase (matter)Dynamic pressureProcess engineeringbusinessAgronomy and Crop ScienceFood ScienceBiosystems Engineering
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Kasviksiin pohjautuvan ruokavalion vaikutus elimistön proteiiniaineenvaihduntaan kuntoilijoilla

2014

Nykyään moni valitsee kasvisruokavalion terveydellisin ja ekologisin perustein. Erityisesti punaisen lihan mahdolliset haittavaikutukset ovat saaneet monet jättämään punaisen lihan pois ruokavaliostaan ja lisää-mään kasvisten syöntiä. Tällöin voidaan puhua kasvispainotteisesta tai semivegetaarisesta ruokavaliosta, koska ruokavalio sisältää satunnaisesti vaaleaa lihaa sekä kalaa. Tämän tutkimuksen tarkoituksena oli selvittää, miten kasviksiin pohjautuva ruokavalio vaikuttaa elimistön proteiiniaineenvaihduntaan. Tavoit-teena oli, että tulosten perusteella voitaisiin arvioida erityisesti sitä, onko kasviksiin pohjautuvasta ruoka-valiosta saadulla proteiinilla erilaisia vaikutuksia elimistön pr…

proteiiniaineenvaihduntakuntoliikuntaproteiinitruokavalioteläinproteiinitaineenvaihduntavegetarismikasviproteiinit
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Propagación de Asplenium celtibericum Rivas Mart. (ASPLENIACEAE) a partir de sus esporas.

2018

El estudio de la respuesta germinativa de especies raras o amenazadas permite establecer protocolos de germinación que aportan la información necesaria para su propagación, y por tanto colaboran a su conservación. Las especies de pequeño tamaño que buscan refugio entre las rocas muestran un carácter poco competitivo frente a otras especies, y suelen desarrollar estrategias diferentes que les permiten sobrevivir en lugares donde otras plantas no pueden. Este trabajo se ha cofinanciado por la Generalitat Valenciana (Conselleria de Agricultura, Medio Ambiente, Cambio Climático y Desarrollo Rural, Servicio de Biodiversidad) y la Universitat de València.

protocolosgerminaciónesporaspropagaciónUNESCO::CIENCIAS DE LA VIDA::Biología vegetal (Botánica)
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Technical improvements for analysis of recalcitrant proteins by LC-MS : the mycorrhiza responsive membrane proteome as a case study

2012

Arbuscular mycorrhizas (AM) are widespread symbiotic associations between plant roots and AM fungi. Deep membrane alterations are the foremost morphological changes occurring in the host plant in response to AM symbiosis. Two-dimensional gel electrophoresis (2-DE) is the workhorse method in AM proteomics. Membrane proteins are under-represented in 2-DE because of their hydrophobicity, low abundance, and precipitation at their isoelectric point, thereby few are the identified membrane proteins involved in sustaining the AM symbiosis. Membrane proteomics is still challenging due to 2-DE related shortcomings, however latest trends and advancements in mass spectrometry (MS)-based quantitative p…

protéomique hors gel[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesprotéines membranaires[SDV.BV] Life Sciences [q-bio]/Vegetal Biologymedicago truncatulasymbiose mycorhizienne à arbusculesprotéomique sans marquage.
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Création et rôle de l'Observatoire de l'ambroisie

2012

L’envahissement du territoire français par l’ambroisie à feuilles d’armoise constitue à la fois une préoccupation de santé publique et un problème agricole important. Le ministère chargé de la Santé et l’Institut National de la Recherche Agronomique ont mis en place en juin 2011 l’« Observatoire de l’ambroisie » qui a pour mission principale la coordination des actions de lutte contre cette plante allergisante. Avec pour objectif de devenir un centre de ressources de références en matière d’ambroisie, l’observatoire contribuera à valoriser la connaissance sur la plante, notamment ses effets sur la santé, sur les actions durables de prévention, ainsi que sur les données scientifiques et les …

prévention[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesscientific informationpreventionsustainable managementcommunicationinformation scientifique[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologygestion durable
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