Lydie Huché-Thélier

Lydie Huché-Thélier
French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE · Department of Environment and Agronomy

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About

86
Publications
14,837
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Introduction
Lydie Huché-Thélier currently works at the Department of Environment and Agronomy, French National Institute for Agricultural Research. Team STREMHO ((Stress, Epigenetic Memory in Horticultural Plants). She studies adaptation and memory of horticultural plants (ornamental and vegetables) in response to abiotic stresses (light - hydric). Horticultural application to priming of plants for increase their adaptation to urbain climatic constraints are considered.
Additional affiliations
January 1987 - present
French National Institute for Agriculture, Food, and Environment (INRAE)
Position
  • research ingineer
Description
  • Ecophysiology of bush - effect of light quality and water availability on bud burst and bush architecture

Publications

Publications (86)
Article
Sustainable production in soilless cultivation systems may be achieved by using recycled organic materials as constituents of growing media (GM) and as organic fertilizers. Synchronizing nutrient releases from organic fertilizer mineralization with plant needs in containerized production is difficult to manage for greenhouse growers. This is furthe...
Article
Full-text available
Managing plant fertilization is a major concern of greenhouse growers to achieve sustainable production with growing media (GM). Organic fertilization is popular but is more difficult to control, since organic compounds need first to be mineralized by microbes. After 7, 14, 28, and 56 days of incubation, we investigated the response of microbial ac...
Article
Increasing concerns of environmental impact from plant production encourages the diversification of growing media (GM) and fertilizers to include sustainable organic materials. Organic fertilization and how microorganisms mediate its mineralization are not well understood. Hydric and biochemical properties of GM are suspected to drive microbial act...
Article
The ecosystem services provided by urban plants strongly depend on the plants’ well-being. Indeed, environmental factors such as soil compaction, shading and irrigation can affect plant physiology, growth, and aspect. Plants in cities are often living in stress-inducing environments characterized by unfavorable and fluctuating aerial and subterrane...
Poster
Full-text available
Le consommateur est soucieux de la qualité des aliments qu’il consomme et des impacts environnementaux de leur production. Le sujet est sensible en horticulture, en particulier en production hors-sol consommatrice en ressources (eau et intrants). Les producteurs s’orientent ainsi vers des pratiques agro-écologiques comme la fertilisation organique...
Poster
Full-text available
Keywords: mineralization, community-level physiological profiles (CLPP), substrate induced respiration (SIR), peat, coir, composted bark, horn, plant-based fertilizer, carbon, nitrogen, phosphorus Increasing concerns over environmental impact of plant production leads to a diversification of growing media (GM) and fertilizers in favor of sustainabl...
Poster
Full-text available
Plant shape and, therefore, the architecture is a major component of the visual quality of ornamental plants in pot. Plant architecture is the result of growth and branching processes and depends on genetic and environment factors such as water supply, and their interaction. In Rosa hybrida cv. Radrazz, temporary water restriction (-26 kPa) reduces...
Poster
Full-text available
Currently, 90% of all Christmas trees sold in France are cut trees. Consumers buy their firs earlier and earlier, but they want them still “fresh” until the beginning of January. The “freshness” notion covers criteria such as needle density, colour and brightness. The needle losses after consumer purchase is a major concern to the industry. Therefo...
Article
Ultra-violet (UV) and blue radiations are perceived by plants through several photoreceptors. They regulate a large range of processes throughout plant life. Along with red radiations, they are involved in diverse photomorphogenic responses, e.g. seedling development, branching or flowering. In this paper, we present an overview of UV- and blue-rad...
Article
Full-text available
The shape and, therefore, the architecture of the plant are dependent on genetic and environmental factors such as water supply. The architecture determines the visual quality, a key criterion underlying the decision to purchase an ornamental potted plant. The aim of this study was to analyze genotypic responses of eight rose bush cultivars to alte...
Article
Full-text available
Bud burst is a crucial factor in plant architecture and is strongly induced by light. In Rosa sp., this light effect was correlated with the growth of axillary buds and RwMAX1 and RwMAX2 expression within buds. In this paper, we investigated whether strigolactone pathway is involved in the regulation of axillary bud in response to light intensity....
Article
Full-text available
doi:10.3390/plants3020223 plants ISSN 2223-7747 www.mdpi.com/journal/plants Review Abstract: Branching determines the final shape of plants, which influences adaptation, survival and the visual quality of many species. It is an intricate process that includes bud outgrowth and shoot extension, and these in turn respond to environmental cues and lig...
Article
The quality of ornamental plants can be appraised with several types of criteria: tolerance to biotic and abiotic stresses, development potentialities and aesthetics. This last criterion, aesthetic quality, is specific to ornamental plants and objective measurements are required. Three methodologies for measuring aesthetic quality have been propose...
Article
Full-text available
Rose bush architecture, among other factors, such as plant health, determines plant visual quality. The commercial product is the individual plant and interplant variability may be high within a crop. Thus, both mean plant architecture and interplant variability should be studied. Expansion is an important feature of architecture, but it has been l...
Article
Full-text available
One of the main criteria for the visual quality of an ornamental plant such as rose bush is its shape, which should be compact and branched. To control both growth and branching, chemical growth regulators are commonly used. However, they have a negative impact on the environment and new environmental-friendly alternatives must be found. Water rest...
Article
Full-text available
Ornamental plant shape is one of the main criteria of plant sale value. Under horticultural practices, plant shape is classically modulated through the use of growth regulators that enhance plant capacity. Increasing concern about environmental preservation encourages for the search of new environmental-friendly practices. Light is known to be the...
Article
Full-text available
Through its impact on photosynthesis and morphogenesis, light is the environmental factor that most affects plant architecture. Using light rather than chemicals to manage plant architecture could reduce the impact on the environment. However, the understanding of how light modulates plant architecture is still poor and further research is needed....
Article
Rosebush architecture resulting from the spatial organisation of the plant axes induces plant shape and consequently within ornamental horticulture context, its visual quality and commercial value. This architecture can be modulated by environmental conditions, particularly in the horticulture context in which the possibilities to control growing c...
Article
The context of ornamental horticulture is considered in order to extend the techniques of sensory and preference evaluation by taking the rosebush as a plant model. In a preliminary study (Boumaza, Demotes-Mainard, Huché-Thélier, & Guérin, 2009), a sensory evaluation was conducted in order to set up a list of attributes. Subsequently, this list was...
Conference Paper
Full-text available
The development of the architecture of ornamental bushes needs to be explicitly described because it defines both their visual appearance and their interface with the environment. The aim of this work was to describe the dynamics of organ development in the primary shoot of rose bushes and their coordination. Rosa hybrida L. 'Radrazz' was grown in...
Article
Since its introduction into the analysis of foodstuffs, sensory analysis has been applied in several contexts. This work seeks to widen the field of sensory analysis to include ornamental plants and to characterize their esthetic quality. Using the rosebush as a plant model, an attribute generation protocol is proposed in order to develop a convent...
Article
In Europe, during the last 30 years, the decrease in sulphur (S) atmospheric depositions has led to S deficient grasslands. Concern for S fertilisation resulted in research about S fertilisation advices and definition of S nutritional diagnostic tools for plants. However, for grasses, S nutrition indicators are still discussed. We propose a diagnos...
Article
Effets d'une diète azotée sur les bourgeons axillaires et sur la qualité esthétique du rosier
Conference Paper
L'équipe a pour objectif d’étudier l’influence de l’environnement sur l’architecture aérienne et la qualité esthétique des arbustes ornementaux, avec pour plante d’étude le rosier buisson. L’étude se situe de l’échelle de la plante à celle du gène, selon une approche de biologie intégrative :- à l’échelle de la plante on recherche des lois d’action...
Conference Paper
L'équipe a pour objectif d’étudier l’influence de l’environnement sur l’architecture aérienne et la qualité esthétique des arbustes ornementaux, avec pour plante d’étude le rosier buisson. L’étude se situe de l’échelle de la plante à celle du gène, selon une approche de biologie intégrative :- à l’échelle de la plante on recherche des lois d’action...
Article
In open-field soilless culture there can be great deal of leaching, particularly in rainy springs. Ligneous plants have the capacity to store large quantities of nutrients in perennial organs. Knowledge of the plant's internal nutrient mobilisation during spring to supply growing organs could lead to reduction of fertiliser application. To quantify...
Article
Container-grown Ligustrum ovalifolium L. plants were used to determine the influence of nutrient availability on the mobilisation of carbon (C), nitrogen (N) and phosphorus (P) during spring growth. During the spring of the second growing season, plants either received no fertiliser, or were fertilised early (starting 17 days after bud break) or la...
Article
Full-text available
ABSTRACT Stored organic and mineral nutrients are essential for spring growth of ligneous woody plants. The nitrogen (N) and potassium (K) dynamics were studied on Ligustrum ovalifolium L. grown in container for two years with or without fertilisation during the second spring. Allocation of nutrient elements towards new shoots was determined. Nutri...
Article
In soilless cultures, fertiliser leaching is particularly large in spring, when fertilisation is applied during rainy periods. Therefore, a better knowledge of the N uptake periods and of the amount of N mobilised from the storage organs could improve fertilisation management during spring growth. Nitrogen allocation was studied for two consecutive...
Conference Paper
Full-text available
La raison principale des échecs attribués aux méthodes de diagnostic de la nutrition minérale par analyse du végétal réside dans la très grande variabilité des teneurs en azote ou en minéraux en fonction des conditions de croissance de la culture et des conditions de prélèvement des échantillons. Notre étude concerne les graminées prairiales et les...
Chapter
Full-text available
In order to limit leaching by improving fertilisation management, mineral absorption kinetics of perennial plants need to be determined in relation to growth and carbon storage. Ligustrum ovalifolium was grown for two years in a peat-perlite substrate in a container. Plants received three fertilisation schedules during the first year (continuous, d...
Article
In container crops, nutrient elements and especially nitrate can be leached rapidly from the substrate. In this experiment, the possibilities of reducing the fertilisation period and limiting losses to the environment by taking into account the synthesis period and the remobilisation of mineral and carbon storage compounds, were investigated. Ligus...
Chapter
Full-text available
For soilless ligneous plant culture, improving the fertilisation schedule requires better knowledge of storage dynamics and nutrient remobilisation. Ligustrum ovalifolium was grown for fifteen months with two different fertilisation treatments during the first year [spring, summer and autumn (SsA) or spring and autumn (SA) and no fertilisation the...
Chapter
Full-text available
In order to limit nitrate leaching without affecting growth of soilless culture, a better adjustment between fertilisation timetable and nitrogen (N) seasonal demand of plants is required. One-year-old Ligustrum ovalifolium L. were grown outdoors in containers for two years. The first year plants received three different fertigation -water and nutr...
Book
*INRA, Centre d'Angers, UMR SAGAH Sciences AGronomiques Appliquées à l'Horticulture Diffusion du document : INRA, Centre d'Angers, UMR SAGAH Sciences AGronomiques Appliquées à l'Horticulture
Article
Full-text available
L'analyse d'herbe met en évidence l'absorption insuffisante ou excessive de P et de K. En rendant compte a posteriori de la disponibilité de ces éléments (dans le sol et par la fertilisation, minérale ou organique) et de l'aptitude de la prairie à les prélever, l'analyse d'herbe est un très bon outil de diagnostic pour piloter la fertilisation P et...
Article
Full-text available
A "terroir" study, based on the "Basic Terroir Unit" concept (B.T.U.), has been realized in the french vineyard of Anjou (Loire Valley). In the characterization of B.T.U.'s natural factors, the geological component (geological stage and lithology) is the first key used to B.T.U. identification. The second affects the soil and its variability. A gro...
Book
*INRA, Centre d'Angers, Unité Vigne et Vin Diffusion du document : INRA, Centre d'Angers, Unité Vigne et Vin
Conference Paper
Full-text available
The terroir concept is presented as the basis of the A.O.C. system, in the french vineyards. The "Anjou terroirs" programe aims at bringing the necessary scientific basis for a rational and reasoned exploitation of the terroir. It must lead to finalizing a lighter, more relevant integrated method of characterization which could be generally applied...
Conference Paper
Full-text available
An integrated terroir characterization is currently realized in the french northern vineyard : “ Anjou ”. The concept of Basic Terroir Unit (B.T.U.) and its associated ground model “ Rock, Alteration, Alterite ” are used in this characterization. This work is coupled to a viticultural survey, based on parcels. These two approaches allow an analysis...
Article
Full-text available
1 Dans le contexte actuel de désintensification, nombre d'éleveurs sont tentés de faire l'impasse sur la fertilisation en phosphore. Après 9 ans sans apport de P sur une prairie, sa végétation est modifiée, affectant son potentiel de production. Deux années d'apport, même important, ont peu d'effet et montrent que l'inertie de la prairie est à pren...
Conference Paper
Full-text available
published in INRA editions, Les Colloques, 82. G. Lemaire and I.G. Burns, editors
Article
Full-text available
A set of N-fertilization field experiments was used to determine the 'critical nitrogen concentration', i.e, the minimal concentration of total N in shoots that produced the maximum aerial dry matter, at a given time and field situation. A unique 'critical nitrogen dilution curve' was obtained by plotting these concentrations Nct (% DM) vs. accumul...
Article
Full-text available
Valorisation, sur prairie et maïs, de la fertilisation organique et minérale. Etude sur le long terme I lest souvent difficile d'estimer l'incidence, à long terme, de pratiques agricoles usuelles sur la culture (niveau de production, état de nutrition), la parcelle (état de fertilité) et son environnement. Afin de répondre à cette problématique, la...
Article
Full-text available
For different grasslands, nitrogen and mineral contents of the herbage at several successive dates throughout the growth period give the basis for two models : dilution equation, and linear relation between mineral and nitrogen contents. Corresponding reference curves were established for different mineral nutrition status and growing conditions, w...