References of "Lassois, Ludivine"
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See detailGenetic diversity, Population structure, parentage analysis, and construction of core collections in the French apple germplasm based on SSR markers
Lassois, Ludivine ULg; Denancé, Caroline; Ravon, Elisa et al

in Plant Molecular Biology Reporter (2016)

In-depth characterization of apple genetic resources is a prerequisite for genetic improvement and for germplasm management. In this study, we fingerprinted a very large French collection of 2163 ... [more ▼]

In-depth characterization of apple genetic resources is a prerequisite for genetic improvement and for germplasm management. In this study, we fingerprinted a very large French collection of 2163 accessions with 24 SSR markers in order to evaluate its genetic diversity, population structure and genetic relationships, to link these features with cultivar selection date or usage (old or modern, dessert or cider cultivars), and to construct core collections. Most markers were highly discriminating and powerful for varietal identification, with a probability of identity P(ID) over the 21 retained SSR loci close to 10-28. Pairwise comparisons revealed 34% redundancy and 18.5% putative triploids. The results showed that the germplasm is highly diverse with an expected heterozygosity He of 0.82 and observed heterozygosity Ho of 0.83. A Bayesian model-based clustering approach revealed a weak but significant structure in three subgroups (FST = 0.014-0.048) corresponding, albeit approximately, to the three subpopulations defined beforehand (Old Dessert, Old Cider and Moderncultivars). Parentage analyses established already known and yet unknown relationships, notably between old cultivars, with the frequent occurrence of cultivars such as ‘King of Pippin’ and ‘Calville Rouge d’Hiver’ as founders. Finally, core collections based on allelic diversity were constructed. A large dessert core collection of 278 cultivars contained 90% of the total dessert allelic diversity, whereas a dessert sub-core collection of 48 cultivars contained 71% of diversity. For cider apples, a 48-cultivars core collection contained 83% of the total cider allelic diversity. [less ▲]

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See detailAgroecology: Unity into diversity
Hatt, Séverin ULg; Artru, Sidonie ULg; Boeraeve, Fanny ULg et al

Poster (2015, May 21)

What does agroecology suggest ? Next to the theoretical agroecological principles, we present illustrative examples from farming practices, through the food system, up to the way of carrying agricultural ... [more ▼]

What does agroecology suggest ? Next to the theoretical agroecological principles, we present illustrative examples from farming practices, through the food system, up to the way of carrying agricultural research and education. [less ▲]

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See detailEvolution de la chalarose du frêne en Wallonie
Gerarts, Fanny ULg; Chandelier, Anne; Claessens, Hugues ULg et al

in Forêt Wallonne (2015), 134

Depuis quelques années, la maladie du frêne, la chalarose, cause des dégâts catastrophiques dans les frênaies européennes, au point de poser la question de l'avenir du frêne. Avec cet article, l ... [more ▼]

Depuis quelques années, la maladie du frêne, la chalarose, cause des dégâts catastrophiques dans les frênaies européennes, au point de poser la question de l'avenir du frêne. Avec cet article, l'Observatoire wallon de la santé des forêts fait le point sur la situation en Wallonie et propose des voies de gestion des peuplements affectés par cette maladie. [less ▲]

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See detailTechnical guidelines for the safe movement of Musa germplasm
Thomas, John; Sharman, Murray; Lassois, Ludivine ULg et al

in Thomas, John (Ed.) Technical guidelines for the safe movement of Musa germplasm (2015)

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See detailVirus indexing and sanitation of international banana collection: insights from a 5-years collaborative effort
De Clerck, Caroline ULg; Parmenter, Kathleen; Vandenhouwe, Ines et al

Conference (2015)

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See detailWinter wheat and summer shade
Artru, Sidonie ULg; Lassois, Ludivine ULg; Garré, Sarah ULg et al

Poster (2014, December 18)

Agroforestry research is in full expansion, but uncertainty remains on the performance of combinations of species with regard to the broad range of possible species associations. In addition, the ... [more ▼]

Agroforestry research is in full expansion, but uncertainty remains on the performance of combinations of species with regard to the broad range of possible species associations. In addition, the variability of environmental conditions under which agroforestry stands can be successfully developed is unknown. Under Belgian pedoclimatic conditions, tree-crop competition for light might be the principal limiting factor in the agroforestry context. Most studies show that shade stress induces a systematic reduction of final crop yield. However, the response of a specific crop to shade is highly dependent on environmental conditions. In agroforestry systems, the tree canopy reduces the incident radiation for the crop following a dynamic spatio-temporal pattern. In this study, we will report on the efficiency of wheat under artificial dynamic shade in the experimental farm of Gembloux Agro-Bio Tech, Belgium in order to evaluate it’s potential for agroforestry purposes in the same region. Wheat productivity and development under artificial shade conditions have been monitored during 1 year and the observations will be continued for 2 more years. We constructed an artificial shade structure, which mimics the light environment observed under hybrid walnut agroforestry trees: periodic fluctuation in radiation transmittance and discontinuous light quantity. We collected information on biomass development, soil state and radiation patterns in the field. Using this data, we evaluated the influence of dynamic shade, light availability and the efficiency with which energy is converted in wheat dry matter under the artificial shade treatment. This, in combination with modeling, will allow a thorough study of the potential of wheat-walnut agroforestry systems in the Hesbaye region in Belgium [less ▲]

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See detailIncorporate agroecology within research : The on-going story of four young researchers
Hatt, Séverin ULg; Artru, Sidonie ULg; Boeraeve, Fanny ULg et al

in Broadening Scopes on Food, Squeezing Urban Hinterlands (2014, November 04)

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See detailVirus indexing and sanitation of international banana collection: insights from a 5-year collaborative effort
De Clerck, Caroline ULg; Parmenter, Kathleen; Vandenhouwe, Ines et al

Conference (2014, August 14)

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See detailWinter wheat and summer shade
Artru, Sidonie ULg; Lassois, Ludivine ULg; Garré, Sarah ULg et al

Poster (2014, June)

Actually, agroforestry research is in full expansion; nevertheless, there remains uncertainty about the performance of combinations of species in regard to the broad range of possible species associations ... [more ▼]

Actually, agroforestry research is in full expansion; nevertheless, there remains uncertainty about the performance of combinations of species in regard to the broad range of possible species associations, as well as the variability of environmental conditions under which agroforestry stand can be develops. In Belgium, pedoclimatical conditions, cultural practices and information available in the literature suggest that light might be the principal tree/crop competitiveness resource in agroforestry context. In most study, responses induced by this shade stress condition converge toward a systematic reduction of crop final yield. However, the behavior of wheat to the shade will be highly dependent on environmental conditions. In fact, in agroforestry system, the tree canopy reduces the incident radiation for crop following a dynamic spatio-temporal pattern, considering tree phenology and sun/shade fluctuation in accordance to the path of the sun during the day. What about in wheat efficiency under a later shade, in Belgium? In Gembloux experimental farm, wheat productivity and development will be monitored over 3 years under artificial shade conditions. An original artificial shade structure has been thought to mimics the light environment observed under hybrid walnut agroforestry tree: periodic fluctuation in radiation transmittance and discontinuous light quantity. The aim of this work will be to evaluate the influence of latter shade, light availability and the efficiency with which she is converted in dried matter on wheat under artificial shade treatment. [less ▲]

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See detailGenetic diversity, structure and parentage analysis within several European apple germplasm collections assessed by microsatellite markers
Durel, Charles-Eric; Denancé, Caroline; Ravon, Elisa et al

Conference (2014, June)

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See detailPrerequisites for a Black locust genomic selection program
Verdu, Cindy ULg; Mengal, Coralie ULg; Henrotay, Frédéric ULg et al

Poster (2014, February 07)

The use of renewable resources as an alternative to fossil fuels has become a priority. Efficient use of forest as a resource for energy and green chemistry purposes require the development of suitable ... [more ▼]

The use of renewable resources as an alternative to fossil fuels has become a priority. Efficient use of forest as a resource for energy and green chemistry purposes require the development of suitable selected genotypes that are competitive and ready to meet the challenges of global change. In this context, the black locust, Robinia pseudoacacia L., is a very promising species which has many advantages in the context of current global change: high phenotypic plasticity, drought resistance, high biomass production and fixation of atmospheric nitrogen. The genetic improvement of woody species using traditional methods can take between 20 to 30 years. These times can be greatly reduced with the development of new selection methods such as genomic selection. Before starting a genomic selection program, it is necessary to 1) develop new molecular markers to achieve a very dense genetic map for genomic selection, 2) study the genetic diversity of the species present in Belgium and compare it with that of the native area, 3) study the structure and the relatedness of different populations, 4) establish a core collection gathering the most genetically diverse individuals, and 5) as black locust is an exotic species, verify its invasiveness in Belgium. These 5 steps will be detailed and the first results obtained will be discussed. [less ▲]

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See detailThree aspects, One concept: Agroecology. Agroecological practices and human interactions for a new approach for science. An example at the Univeristy of Liege.
Hatt, Séverin ULg; Artru, Sidonie ULg; Boeraeve, Fanny ULg et al

Poster (2014, February 07)

Critics are raising about conventional farming and its consequences on biodiversity, human health and society. As alternatives, novel models for agriculture are proposed, and among them Agroecology. Quite ... [more ▼]

Critics are raising about conventional farming and its consequences on biodiversity, human health and society. As alternatives, novel models for agriculture are proposed, and among them Agroecology. Quite often, Agroecology is seen as the application of ecological knowledge to the agricultural production. Indeed, this helps to develop more ecological farming practices favoring biodiversity to provide ecosystem services at multiple scales. Agroecology goes further in considering that the agricultural production is integrated in a food system guided by human interactions. This latter one takes into account socio-economic and political dimensions to develop new production systems. Doing so, it assures food security worldwide while preserving resources for future generations. Facing these ambitious objectives, academics are invited to elaborate a new approach for science in developing participatory and action-oriented approaches as well as multidisciplinarity. AgricultureIsLife is a research platform built up at the University of Liège (ULg). In 2013, 40 researchers (including 18 young researchers) from 16 research units of ULg were working in a multidisciplinary approach. About twenty research topics have been divided in four research axes of which objectives are to develop a more sustainable agriculture. The platform has the ambition to discuss its results to a large comity gathering the actors of the agricultural development. The aim of our work is firstly to present Agrocology as a concept made of three interrelated aspects. To illustrate it, the organization and objectives of the research platform AgricultureIsLife will be discussed in a second part. [less ▲]

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See detailcrown rot disease of bananas
Lassois, Ludivine ULg; de Lapeyre de Bellaire

in Bautista-Banos, Silvia (Ed.) Postharvest Decay, control strategies (2014)

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See detailImpact of the extension of black leaf streak disease on banana susceptibility to post-harvest diseases
Ewané, Cécile Annie; Chillet, Marc; Castelan, Florence et al

in Fruits (2013), 68(5), 351-365

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See detailThermotherapy, chemotherapy and meristem culture in banana
Lassois, Ludivine ULg; Lepoivre, Philippe ULg; Van den Houwe, Ines et al

in Lambardi, M.; Ozudogru, A. E.; Jain, S. M. (Eds.) Protocols for micropropagation of selected economically-important horticultural plants (2013)

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See detailThe susceptibility of bananas to crown rot disease is influenced by geographical and seasonal effects
Ewane, Cécile Annie; Lassois, Ludivine ULg; Lepoivre, Philippe ULg et al

in Canadian Journal of Plant Pathology = Revue Canadienne de Phytopathologie (2013), 35(1), 27-36

Crown rot of banana fruits is caused by a complex of fungal pathogens, the most common of which is Colletotrichum musae, and is one of the main quality defects of exported bananas. Susceptibility of ... [more ▼]

Crown rot of banana fruits is caused by a complex of fungal pathogens, the most common of which is Colletotrichum musae, and is one of the main quality defects of exported bananas. Susceptibility of banana fruits to crown rot is influenced by many pre-harvest factors. The aim of this study was to improve on the methodology for the evaluation of fruit susceptibility and to verify whether cultivation areas in Cameroon as well as seasonal variations have an influence on the susceptibility to crown rot. Fruit susceptibility was evaluated on a monthly basis throughout a year (including the dry and rainy seasons) in three banana plantations located at very different agro-ecological conditions (two in a lowland area and one in a highland area). Fruit susceptibility was determined through an internal necrotic surface (INS) assessment after artificial inoculation with C. musae. The standardization of post-inoculation environmental conditions enabled more reliable INS assessments. Fruit susceptibility was found to be significantly influenced by cultivation area (P<0.001) since fruits grown in low altitude (Dia-dia, Koumba, 80 m) were more susceptible than fruits grown in high altitude (Ekona, 500 m). Although no seasonal effect was observed (P=0.075), there was a highly significant date effect (P<0.001). This was specifically the case in low altitude plantations where fruit susceptibility was higher for some harvest dates within the rainy season. In Ekona, fruit grade and number of leaves on the banana plant were found to be significantly higher than in the two other locations, while black leaf streak disease severity was significantly lower. The potential relationship with fruit susceptibility is fully discussed. [less ▲]

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See detailGenetic diversity and structure within 6 European apple germplasm collections assessed by microsatellite markers
Durel, Charles-Eric; Denancé, C; Ravon, E et al

Conference (2013)

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See detailInvolvement of phenolic compounds in the susceptibility of bananas to crown rot. A review.
Ewane, Cécile Annie; Lepoivre, Philippe ULg; de Lapeyre de Bellaire, Luc et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(3), 393-404

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See detailEtude de la diversité génétique et de la structure d'une collection française de pommiers
Lassois, Ludivine ULg; Denancé, Caroline; Ravon, Elisa et al

Scientific conference (2012)

Detailed reference viewed: 19 (2 ULg)