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Registros recuperados: 5
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Characterisation of ecosystem water-use efficiency of european forests from eddy covariance measurements Inra
Kuglitsch, F.G.; Reichstein, M.; Beer, C.; Carrara, A.; Ceulemans, R.; Granier, A.; Janssens, I.A.; Koestner, B.; Lindroth, A.; Loustau, D.; Matteucci, G.; Montagnani, L.; Moors, E.J.; Papale, D.; Pilegaard, K.; Rambal, S.; Rebmann, C.; Schulze, E.D.; Seufert, G.; Verbeeck, H.; Vesala, T.; Aubinet, M.; Bernhofer, C.; Foken, T.; Grünwald, T.; Heinesch, B.; Kutsch, W.; Laurila, T.; Longdoz, B.; Miglietta, F.; Sanz, M.J.; Valentini, R..
Water-use efficiency (WUE) has been recognized as an important characteristic of vegetation productivity in various natural scientific disciplines for decades, but only recently at the ecosystem level, where different ways exist to characterize water-use efficiency. 5 Hence, the objective of this research was (a) to systematically compare different ways of calculating ecosystem water-use efficiency (WUEe) from eddy-covariance measurements, (b) quantify the diurnal, seasonal and interannual variability of WUEe in relation to meteorological conditions, and (c) analyse between-site variability of WUEe as affected by vegetation type and climatic conditions, across sites in European forest 10 ecosystems. Day-to-day variability of gross primary productivity...
Tipo: Journal Article Palavras-chave: METHODE CALCUL WATER USE EFFICIENCY; EDDY COVARIANCE; CARBON; EVAPOTRANSPIRATION; VARIABILITY.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011864f553e&uri=/notices/prodinra1/2011/06/
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Effects of environment and progeny on biomass estimations of five hybrid poplar families grown at three contrasting sites across Europe Inra
Dillen, S.Y.; Marron, N.; Bastien, C.; Ricciotti, L.; Salani, F.; Sabatti, M.; Pinel, M.P.C.; Pinel, A.M.; Taylor, G.; Ceulemans, R..
The quantitative and qualitative estimation of aboveground previous termbiomassnext term production is essential for short-rotation forestry. Indirect methods of previous termbiomassnext term estimation have been developed based on the establishment of regressions between previous termbiomassnext term components and tree dimensions as well as canopy architecture. The difficulty encountered with this method is to know whether, and to what degree, the obtained equations can be used under contrasting environmental conditions and for different genetic backgrounds. In the present study, allometric equations were developed linking tree dry weight (stem, branch and aboveground tree dry weight) with stem circumference, stem height and number of sylleptic branches...
Tipo: Journal Article Palavras-chave: PEUPLIER HYBRIDE; TAILLIS A COURTE ROTATION; CONDITION ENVIRONNEMENTALE; FACTEUR DU MILIEU; EFFET GENETIQUE; EQUATION ALLOMETRIQUE; MATIERE SECHE HYBRID POPLAR; SHORT ROTATION COPPICE; ENVIRONMENTAL CONDITION; GENETIC BACKGROUND; ALLOMETRIC EQUATION; DRY WEIGHT; BIOMASS.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20078f3694e5&uri=/notices/prodinra1/2008/10/
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Genomic regions involved in productivity of two specific poplar families in Europe. 2. Biomass production and its relationships with tree architecture and phenology Inra
Marron, N.; Storme, V.; Dillen, S.Y.; Bastien, C.; Ricciotti, L.; Salani, F.; Sabatti, M.; Rae, A.M.; Ceulemans, R.; Boerjan, W..
Short-rotation coppice of hybrid poplar is a promising renewable feedstock for biofuel production. Breeding for high biomass in short-rotation coppice has started only recently. Two hybrid poplar families were grown at two sites in Europe and phenotyped for a variety of biomass-related traits (1) to examine the extent of phenotypic and genetic variation in biomass production, ramification, resprouting, and phenology, (2) to search for genomic regions involved in productivity, and (3) to determine the effect of the environment on the expression of these traits. The performance of both families differed within and among sites. A pronounced heterosis was observed in most cases. Moderate to high heritability values were found. Seventeen quantitative trait loci...
Tipo: Journal Article Palavras-chave: POPLAR; BIOMASS; CROP PRODUCTION; GENETIC DIVERSITY; GENOMICS; HERITABILITY; HETEROSIS; HYBRIDS; PHENOLOGY; PHENOTYPES; PLANT BREEDING; PRODUCTIVITY; QTL; QUANTITATIVE TRAIT LOCI; RENEWABLE ENERGY; SELECTION CRITERIA; WOOD; GENETIC VARIABILITY; HERITABLE CHARACTERS; HYBRID VIGOR.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20107d842062&uri=/notices/prodinra1/2010/10/
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Plasticity of growth and sylleptic branchiness in two poplar families grown at three sites across Europe Inra
Marron, N.; Bastien, C.; Sabatti, M.; Taylor, G.; Ceulemans, R..
Two hybrid poplar maternal half-sib families, resulting from controlled crosses of the female parent Populus deltoides ‘S9-2’ with P. nigra ‘Ghoy’ and P. trichocarpa ‘V24’, were grown at three sites: northern Italy, central France and southern England. Juvenile stem growth traits (height, circumferenceand volume) and sylleptic branchiness (number of branches, density of branches per unit of stem height, percentage of the stem carrying branches and distance of the highest sylleptic branch to the top of the stem) were measured on 1-year-old shoots. Our general objectives were to determine the degree to which the expression of stem growth and syllepsis and the relationships between them are affected by environmental conditions and to evaluate the efficiency...
Tipo: Journal Article Palavras-chave: HERITABILITE; HETEROSIS; INTERACTION GENOTYPE ENVIRONNEMENT; CROISSANCE DE LA TIGE; PLASTICITE; RAMIFICATION SYLLEPTIQUE; BRANCHAISON.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007de8d60e7&uri=/notices/prodinra1/2007/06/
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Variability in Populus leaf anatomy and morphology in relation to canopy position, biomass production, and varietal taxon Inra
Al Afas, N.; Marron, N.; Ceulemans, R..
Douze génotypes de peuplier (Populus), appartenant à différents taxa ainsi qu’aux sections Aigeiros et Tacamahaca, ont été étudiés durant la troisième saison de croissance de la deuxième rotation d’une plantation à forte densité. L’objectif de l’expérience était demettre en évidence les relations entre les caractères foliaires, la production de biomasse et le taxon, ainsi que l’influence de la position des feuilles dans la canopée. Pour ce faire, diverses caractéristiques anatomiques et morphologiques des feuilles (épaisseur des épidermes et des parenchymes palissadique et lacuneux, densité et longueur des stomates, surface foliaire, surface foliaire spécifique (SLA) et teneurs en azote) ont été déterminées pour des feuilles matures de tous les génotypes...
Tipo: Journal Article Palavras-chave: POPULUS SPP.; TAXON; DENSITE ET LONGUEUR DES STOMATES; EPAISSEUR DES TISSUS ANATOMIQUES FOLIAIRES; TENEUR EN AZOTE; SURFACE FOLIAIRE SPECIFIQUE; PRODUCTIVITÉ POPULUS SPP; TAXON; STOMATAL DENSITY AND LENGTH; THICKNESS OF LEAF ANATOMICAL LAYERS; NITROGEN CONCENTRATION; SPECIFIC LEAF AREA; PRODUCTIVITY.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200934060423&uri=/notices/prodinra1/2009/11/
Registros recuperados: 5
Primeira ... 1 ... Última
 

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