Search Results - "DAUZAT, J."

Soluble sugars mediate sink feedback down-regulation of leaf photosynthesis in field-grown Coffea arabica by Franck, N, Vaast, P, Genard, M, Dauzat, J

“…Source-sink relationships of field-grown plants of Coffea arabica L. cultivar 'Caturra' were manipulated to analyze the contribution of soluble sugars to sink…”
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Fruit load and branch ring-barking affect carbon allocation and photosynthesis of leaf and fruit of Coffea arabica in the field by Vaast, P, Angrand, J, Franck, N, Dauzat, J, Genard, M

“…Increasing fruit load (from no berries present to 25, 50 and 100% of the initial fruit load) significantly decreased branch growth on 5-year-old coffee (Coffea…”
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Fruit development, not GPP, drives seasonal variation in NPP in a tropical palm plantation by Navarro, M.N.V, Jourdan, C, Sileye, T, Braconnnier, S, Mialet-Serra, I, Saint-Andre, L, Dauzat, J, Nouvellon, Y, Epron, D, Bonnefond, J.M

“…We monitored seasonal variations in net primary production (NPP), estimated by allometric equations from organ dimensions, gross primary production (GPP),…”
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Using directional TIR measurements and 3D simulations to assess the limitations and opportunities of water stress indices by Luquet, D., Vidal, A., Dauzat, J., Bégué, A., Olioso, A., Clouvel, P.

“…Multidirectional remotely sensed optical and thermal images acquired within a row cotton crop in Montpellier (France) were used to test the opportunities and…”
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Using multidirectional thermography to characterize water status of cotton by Luquet, D, Bégué, A, Vidal, A, Clouvel, P, Dauzat, J, Olioso, A, Gu, X.F, Tao, Y

“…A pertinent interpretation of thermal infrared (TIR) information to characterize crop water status requires at least to consider the fraction of crop cover…”
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Simulating light regime and intercrop yields in coconut based farming systems by Dauzat, J, Eroy, M.N

“…Intercropping experiments of corn and mungbean have been conducted at the Davao Research Center of the Philippines Coconut Authority under coconut stands at…”
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3D simulation of directional temperature variability within a row-cotton crop: Toward an improvement of experimental crop water status monitoring using thermal infrared by Luquet, D, Begue, A, Vidal, A, Dauzat, J, Clouvel, P

“…Existing experimental methods based on the measurement of crop temperature to estimate water stress have been applied for 20 years. However, the application of…”
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A model simulating above- and below-ground tree architecture with agroforestry applications by DE REFFYE, P, HOULLIER, F, BLAISE, F, BARTHELEMY, D, DAUZAT, J, AUCLAIR, D

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Using plant architectural models for estimation of radiation transfer in a coconut-based agroforestry system by MIALET-SERRA, I, DAUZAT, J, AUCLAIR, D

“…Software modules have been developed to predict the radiative environment of plant stands consisting of computer 'mock-ups' of plants. The architecture of…”
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Using Virtual Plants to Analyse the Light-foraging Efficiency of a Low-density Cotton Crop by Dauzat, Jean, Clouvel, Pascal, Luquet, Delphine, Martin, Pierre

“…BACKGROUND AND AIMS: Cotton shows a marked plasticity vs. density in terms of branch development and geometry, internode elongation and leaf expansion. This…”
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‘More crop per drop’: how to make it acceptable for farmers? by Luquet, Delphine, Vidal, Alain, Smith, Martin, Dauzat, Jean

“…In countries facing water scarcity, governmental water agencies try to transfer this constraint to farmers, e.g. by encouraging them to shift from traditional…”
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Influence of trellis system and shoot positioning on light interception and distribution in two grapevine cultivars with different architectures: an original approach based on 3D canopy modelling by LOUARN, G., DAUZAT, J., LECOEUR, J., LEBON, E.

“…Background and Aims:  A 3D modelling approach simulating canopy structure was used in combination with a radiative transfer model to simulate light…”
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Reconstructing three-dimensional oil palm architecture from allometric relationships by Perez, R., Pallas, B., Griffon, S., Rey, H., Caliman, J.P., Le Moguédec, G., Dauzat, J., Costes, E.

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Simulation of leaf transpiration and sap flow in virtual plants: model description and application to a coffee plantation in Costa Rica by Dauzat, Jean, Rapidel, Bruno, Berger, André

“…Computer representations of plants (virtual plants) are used as the basis for a model simulating leaf transpiration and sap flow. The virtual plants provide a…”
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Using a 3-D Virtual Sunflower to Simulate Light Capture at Organ, Plant and Plot Levels: Contribution of Organ Interception, Impact of Heliotropism and Analysis of Genotypic Differences by Rey, Hervé, Dauzat, Jean, Chenu, Karine, Barczi, Jean-François, Dosio, Guillermo A.A, Lecoeur, Jérémie

“…BACKGROUND AND AIMS: Light interception is a critical factor in the production of biomass. The study presented here describes a method used to take account of…”
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Partitioning energy and evapo-transpiration above and below a tropical palm canopy by Roupsard, Olivier, Bonnefond, Jean-Marc, Irvine, Mark, Berbigier, Paul, Nouvellon, Yann, Dauzat, Jean, Taga, Serge, Hamel, Olivier, Jourdan, Christophe, Saint-André, Laurent, Mialet-Serra, Isabelle, Labouisse, Jean-Pierre, Epron, Daniel, Joffre, Richard, Braconnier, Serge, Rouzière, André, Navarro, Muriel, Bouillet, Jean-Pierre

“…For open canopies, the partitioning of energy and water fluxes between the upper canopy and the under-storey is key to understand the competition mechanisms…”
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Synchronism of leaf and tiller emergence relative to position and to main stem development stage in a rice cultivar by Jaffuel, S, Dauzat, J

“…[bullet] BACKGROUND: and Aims Tillering is an essential factor when estimating yield, but investigations rarely include both the temporal and spatial changes…”
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Cross-validating Sun-shade and 3D models of light absorption by a tree-crop canopy by Roupsard, Olivier, Dauzat, Jean, Nouvellon, Yann, Deveau, Aurélie, Feintrenie, Laurène, Saint-André, Laurent, Mialet-Serra, Isabelle, Braconnier, Serge, Bonnefond, Jean-Marc, Berbigier, Paul, Epron, Daniel, Jourdan, Christophe, Navarro, Muriel, Bouillet, Jean-Pierre

“…Sun-shade models proved to be simple, fast and reliable tools for estimating the fraction of absorbed PAR ( fAPAR) and the photosynthesis of low and simple…”
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From the 3D modeling of cotton plants water balance to the simulation of leaves temperature. Application to the monitoring of plant water status through thermographies by Luquet, D., Dauzat, J., Begue, A., Vidal, A.

“…The interpretation of thermal infrared (TIR) information as a crop water status indicator implies the understanding of plant water functioning in given…”
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Interpretation of Microwave Signatures of Trees by a Combined Backscattering and Plant Structural Model by Mougin, E., Lopes, A., Dauzat, J., Hoekman, D.H., Karam, M.A., Fung, A.K.

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