References of "Bodson, Bernard"
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See detail11. Perspectives - Impact de la gestion culturale sur la respiration d'un sol agricole
Dufranne, Delphine ULg; Vancutsem, Françoise ULg; Aubinet, Marc ULg et al

in Livre Blanc: Céréales - Gembloux (2011, February 23)

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See detailComparison of carbon fluxes, growth and productivity of a winter wheat crop in three contrasting growing seasons
Dufranne, Delphine ULg; Moureaux, Christine ULg; Vancutsem, Françoise ULg et al

in Agriculture, Ecosystems & Environment (2011), 141

Three winter wheat growing seasons were compared in order to analyse crop development, CO2 fluxes and inter-annual variability in productivity. Crop development monitoring, leaf scale measurements and ... [more ▼]

Three winter wheat growing seasons were compared in order to analyse crop development, CO2 fluxes and inter-annual variability in productivity. Crop development monitoring, leaf scale measurements and continuous eddy-covariance measurements were conducted in a production crop at the Lonzée experimental site in Belgium. The 3 years were characterised by similar soil proprieties (same site), similar management (sowing, harvesting, plant protection and nitrogen application, adhering to regional standards), and the use of recommended cultivars (the most productive ones for this region). The comparison of carbon fluxes, growth and productivity in the three growing seasons highlighted mechanisms affected by meteorological conditions and, in some cases, modulated by a cultivar effect. In particular, it was shown that (a) precociousness or lateness in stage development was triggered mainly by cumulated temperature during winter and early spring; (b) early development in one season could explain the larger ecosystem net carbon sequestration that year, but had no impact on grain yield; (c) low grain yield in one season was the result of a complex mechanism including drought in early spring, which hindered flag leaf development, and moist conditions in late spring, which restrained radiation and favoured the development of fungal diseases. In all cases, it was found that grain yield could not be related to gross primary productivity or net ecosystem exchange, suggesting that reallocation and translocation processes play a substantial role in grain filling. [less ▲]

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See detailCrossing abilities of ALS Target-Site Resistant Black-grass (Alopecurus myosuroides HUDS.)
Maréchal, Pierre-Yves ULg; Henriet, François; Vancutsem, Françoise ULg et al

in Communications in Agricultural and Applied Biological Sciences (2011)

Black-grass crossings were conducted outdoor for two successive years in a way to determine the percentage of resistant black-grass that can be engendered in one generation, after the introduction of one ... [more ▼]

Black-grass crossings were conducted outdoor for two successive years in a way to determine the percentage of resistant black-grass that can be engendered in one generation, after the introduction of one Target-Site resistant individual. After germination, plants were genotyped and couples of resistant and susceptible individuals were formed, then planted outdoor and enclosed with a pollen-proof cloth to avoid any external pollen contamination. Seeds were collected and tested in glasshouses with herbicide spraying. DNA analyses were also performed on surviving plants to distinguish hetero- from homozygotes. The resistance level of the progeny seems to be fairly high and Mendelean distribution is generally confirmed. The offspring of self-crossings was also observed to assess the facultative autogamy ability, according to the genotype and the presence of mutant ALS alleles (position W-574). [less ▲]

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See detailRespiration of three Belgian crops: Partitioning of total ecosystem respiration in its heterotrophic, above- and below-ground autotrophic components
Suleau, Marie ULg; Moureaux, Christine ULg; Dufranne, Delphine ULg et al

in Agricultural and Forest Meteorology (2011), (151), 633-643

An experimental system combining an eddy covariance system, a micrometeorological station and soil chambers placed in planted areas and in root exclusion zones was installed during three successive years ... [more ▼]

An experimental system combining an eddy covariance system, a micrometeorological station and soil chambers placed in planted areas and in root exclusion zones was installed during three successive years in a production crop managed in a traditional way at the Lonzée experimental site (Belgium). Measurements were made successively on seed potato, winter wheat and sugar beet. The general objectives of the study were, first to evaluate the relative contributions to total ecosystem respiration (TER) of heterotrophic, above ground autotrophic and below ground autotrophic respiration over a succession of three agricultural crops (seed potato, winter wheat and sugar beet) cultivated on successive years at the same location and, secondly, to identify the driving variables of these contributions. Results showed that, during the observation periods, TER was dominated by autotrophic respiration (AR) (60–90%) and that AR was dominated by its above ground component (60–80%). HR was found to increase with temperature and to be independent of Gross Primary Production (GPP), whereas AR was driven by GPP and was mostly independent of temperature. The AR response to GPP was specific to the crop: not only AR intensity but also AR distribution between its above- (ARa) and below- (ARb) ground components were found to differ from one crop to another and, in the winter wheat, from one development stage to another. Generally, ARb contribution to AR was found larger when carbon allocation towards roots was more important. An uncertainty analysis was made and showed that the main sources of uncertainties on the estimates were the spatial variability for soil chamber measurements and uncertainties linked to the data gap filling method for eddy covariance measurements. [less ▲]

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See detailETUDE DE L’HÉRÉDITÉ DE LA RÉSISTANCE PAR MUTATION DE CIBLE AUX HERBICIDES INHIBITEURS DE L’ALS CHEZ LE VULPIN DES CHAMPS (ALOPECURUS MYOSUROIDES HUDS.)
Maréchal, Pierre-Yves ULg; Henriet, François; Vancutsem, Françoise ULg et al

in Annales de la 21ème Conférence du COLUMA journées internationales sur la lutte contre les mauvaises herbes (2010, December 08)

Target-site resistance heredity in black-grass was assessed by observing the percentage of resistant individuals engendered by crossings. After germination, plants were genotyped as homo- or heterozygote ... [more ▼]

Target-site resistance heredity in black-grass was assessed by observing the percentage of resistant individuals engendered by crossings. After germination, plants were genotyped as homo- or heterozygote for the W574 mutation on the ALS gene, which induces herbicide resistance. Individuals were then transplanted outdoor and crossed between one another and with other individuals issued from a population known as susceptible. To avoid an external pollen contamination, plants were enclosed within pollen-proof clothing during flowering time. Allogamy rate was also tested, by isolating heads one by one. Seeds issued from these crossings were collected and tested in glasshouses. Their DNA was also analysed. [less ▲]

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See detailVariétés - 1. Froment d'hiver
Seutin, Benoit ULg; Vancutsem, Françoise ULg; Couvreur, Luc et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailImplantation des cultures
Bodson, Bernard ULg; Roisin, Christian; Vancutsem, Françoise ULg et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailVariétés - 3. Orge de brasserie
Monfort, Bruno; Bodson, Bernard ULg

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailFroment 2010 : une réédition de 2006 ?
Sinnaeve, Georges; Gofflot, Sébastien; Chandelier, Anne et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailVariétés - 2. Escourgeon et Orge d’hiver fourragers
Monfort, Bruno; Couvreur, Luc; Jacquemin, Guillaume et al

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2010, September 09)

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See detailREAL-TIME MONITORING OF ENVIRONMENTAL FACTORS TO MODEL WHEAT YIELD PRODUCTION
Dumont, Benjamin ULg; Leemans, Vincent ULg; Lebeau, Frédéric ULg et al

Poster (2010, September 07)

This paper presents the results of a one year preliminary study in which a real-time monitoring system was used to feed the STICS soil crop model. The monitoring system was made of a self-organising ... [more ▼]

This paper presents the results of a one year preliminary study in which a real-time monitoring system was used to feed the STICS soil crop model. The monitoring system was made of a self-organising wireless network within which microsensors collected and stored microclimatic and environmental data. As indicated by the statistical criteria (RMSE, normalized deviation and model efficiency), the optimisation of some wheat crop parameters allows the STICS model to predict the yields with good accuracy for three different soil types and seven different nitrogen application rates. [less ▲]

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See detailLivre Blanc Céréales - Gembloux - Informations avant les semis
De Proft, Michel; Bodson, Bernard ULg

Book published by Gembloux Agro-Bio Tech - Edition Septembre 2010 (2010)

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See detailA MODEL FOR WHEAT YIELD PREDICTION BASED ON REAL-TIME MONITORING OF ENVIRONMENTAL FACTORS
Dumont, Benjamin ULg; Lebeau, Frédéric ULg; Vancutsem, Françoise ULg et al

Poster (2010, July)

This paper presents the results of a one year preliminary study in which a real time monitoring system was used to feed the STICS soil crop model. As indicated by the statistical criteria (RMSE and model ... [more ▼]

This paper presents the results of a one year preliminary study in which a real time monitoring system was used to feed the STICS soil crop model. As indicated by the statistical criteria (RMSE and model efficiency), the optimization of some wheat crop parameters allows the model to predict the yields with good accuracy for different soil type and different nitrogen application rates. [less ▲]

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See detailImpact of cutting frequency on the vigour of Rumex obtusifolius
Stilmant, Didier ULg; Bodson, Bernard ULg; Vrancken, C. et al

in Grass & Forage Science (2010), 65(2), 147-153

The control of Rumex obtusifolius, even with the use of herbicides, is difficult in permanent grasslands where R. obtusifolius reduces both productivity and nutritive value of herbage. It is important to ... [more ▼]

The control of Rumex obtusifolius, even with the use of herbicides, is difficult in permanent grasslands where R. obtusifolius reduces both productivity and nutritive value of herbage. It is important to find alternative approaches to managing R. obtusifolius. Two greenhouse experiments were conducted to compare the impact of different cutting frequencies, which simulated grazing (three cuts), silage making (two cuts) and hay making (one cut) on shoot and root measurements of the vigour of R. obtusifolius. In both experiments the same cutting frequencies were imposed but in Experiment 1 the treatments were imposed for 2 years and in Experiment 2 for 1 year. Compared to the silage-making and hay-making treatments, there was a reduction in the vigour of the aerial parts of R. obtusifolius on the grazing treatment, associated with a reduction in the number of leaves (Experiment 1), in the size of the largest leaf (Experiment 1) and in the herbage mass of dry matter (Experiments 1 and 2). Roots had higher concentrations of total soluble sugar and lower concentrations of starch in the grazing treatment than in the other treatments. These results showed that a reduction in the vigour of R. obtusifolius in permanent grasslands is possible only if the plants are submitted to a high frequency of defoliation under cutting or grazing. [less ▲]

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See detailHerbicides, régulateurs, fongicides, azote: que penser du regroupement des traitements ... en culture de froment?
Seutin, Benoit ULg; Vancutsem, Françoise ULg; Bodson, Bernard ULg

in de Neuville (Ed.) Le Sillon Belge (2010)

Réaliser, en un passage, des interventions utiles à la culture à un même stade de développement, répond à une simple question de bons sens pratique et économique. Mais cette stratégie n'est pas dénuée de ... [more ▼]

Réaliser, en un passage, des interventions utiles à la culture à un même stade de développement, répond à une simple question de bons sens pratique et économique. Mais cette stratégie n'est pas dénuée de risques de perte de rendement à la récolte. Coup d'oeil sur les résultats d'essais réalisés à Gembloux. [less ▲]

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See detailValorisation de l'amidon de blé. Incidences des modalités de culture sur les propriétés techno-fonctionnelles
Sindic, Marianne ULg; Massaux, Carine ULg; Paridaens, Anne-Michèle et al

Book published by Presses agronomiques de Gembloux (2010)

Gembloux Agro-Bio Tech (Unité de Technologie des Industries agro-alimentaires et Unité de Phytotechnie des Régions tempérées) et le Centre Wallon de Recherches agronomiques (Département Valorisation des ... [more ▼]

Gembloux Agro-Bio Tech (Unité de Technologie des Industries agro-alimentaires et Unité de Phytotechnie des Régions tempérées) et le Centre Wallon de Recherches agronomiques (Département Valorisation des Productions agricoles) ont uni leurs compétences, dans le cadre d'un projet de recherche, financé par la Région wallonne(DGARNE - Direction de la Recherche), pour évaluer l'influence des facteurs de types génétiques et culturaux sur les caractéristiques physico-chimiques de l'amidon. Les relations existant entre la structure de l'amidon et ses propriétés technologiques ont été également étudiées. Les travaux de recherche réalisés soulignent l'importance de la variabilité des caractéristiques des amidons de blés indigènes. Les différences observées portent notamment sur la teneur en amidon, la distribution de la taille des granules et le rapport amylose/amylopectine. Elles induisent aussi des variations conséquentes au niveau du rendement d'extraction de l'amidon, de la qualité de la séparation amidon/gluten, de l'endommagement de l'amidon ainsi que des paramètres de viscosité des empois d'amidon ou encore de la sensibilité aux attaques enzymatiques. Ces écarts de comportement sont tels qu'ils sont à même d'influer les processus de fabrication et indiquent l'intérêt de développer des productions de blé ciblées en fonction des diverses applications industrielles tant alimentaires que non-alimentaires. Valorisation de l'amidon de blé, s'adresse aux différents intervenants de la filière blé (sélectionneurs, agriculteurs, négociants-stockeurs, meunerie-boulangerie, amidonnerie et industries de transformation de l'amidon). En effet, lors des prochaines années, le secteur céréalier sera amené à relever des défis importants. Sa pérennité passe par une orientation différenciée des productions vers des applications technologiques et industrielles à haute valeur ajoutée. Les résultats des recherches présentés dans cet ouvrage devraient contribuer à mieux connaître et maîtriser la composante amidon du blé afin de répondre correctement aux demandes des industries (agroalimentaires ou non) et de là accroître les débouchés. [less ▲]

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See detailLutte contre les maladies: que peut-on retenir des essais fongicides menés en froment sur les sites de Lonzée en 2009?
Seutin, Benoit ULg; Vancutsem, Françoise ULg; Bodson, Bernard ULg

in Livre Blanc: Céréales - Gembloux (2010, February 24)

Comparaison des produits, de stratégies de traitements

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See detailLivre Blanc Céréales - Gembloux
De Proft, Michel; Bodson, Bernard ULg

Book published by Gembloux Agro-Bio Tech - Edition février 2010 (2010)

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See detailLes flux de CO2 en grandes cultures
Dufranne, Delphine ULg; Jerome, Elisabeth ULg; Moureaux, Christine ULg et al

Conference (2010, February 24)

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