Model

Articles

• PHENOtyping Plants by Modelling their Environment and Architecture
  3 May 2021

  1. NEMA hosted in OpenAlea platform NEMA simulates the absorption and distribution within wheat plants after flowering of both dry matter and N, using soil N concentration and the daily time courses of temperature and of PAR above the canopy as driving variables. NEMA was implemented in C++. Thus, the first step was to adapt NEMA for OpenAlea. NEMA libraries were interfaced with the Python language without rewriting all the code. it is now available as a Python package which links with the (...)

• Climate impact of tropical agroforestry. From local Data to global Models.
  29 April 2022

  This proposal aims to open the way to large-scale simulation of the climate change mitigation potential of agroforestry systems (AFS) by setting a proof-of-concept. Agroforestry is identified as a nature-based solution to the climate crisis based on a multitude of local and diverse experiments. Yet, little is known on the large-scale potential of AFS to tackle climate change. The main reason for this is the gap between AFS ecosystems’ complexity and variability and the modeling methods of (...)

• Platform for vine water status spatial monitoring at the regional scale
  29 April 2022

  Monitoring vine water status at the field, vineyard or regional scale is essential as a decision-making tool for growers and winemakers since this parameter impacts wine quality. For several years, the ITAP team has developed an empirical model to extrapolate, spatialise and map the water status of the vine, which is fed by a collaborative approach.
  The objective of the present project is now to develop a participatory internet platform that would involve all users (growers, winegrowers, (...)

• Rosom - Influence of mechanical root-soil intercations on the variability of root architecture
  29 April 2022

  In a review article, Forde (2009) suggests that most of the phenotypic variability of plant root architecture is related to the developmental instability of meristems, a consequence of stochasticity at the cellular level. He suggests further that this "random" component (or noise) is good for the plant because it facilitates access to resources in heterogeneous soils. Starting from this point, we make the assumption that, in a granular soil, the structure and organization of grains are also (...)

• Methods and decision tools for the sustainable management of babaçu palms in pasture
  29 April 2022

  The babaçu palm, Attalea speciosa Mart. ex Spreng. is native to the dense Amazonian rainforests of Brazil. After clearing, it remains in pastures, which it sometimes invades by eliminating fodder species. While some stakeholders wish to eliminate it, others wish to conserve it for use. Among the sixty or so recognised uses, the extraction of oil from the seeds is the most common and is monitored by the Brazilian Institute of Geography and Statistics (...)

• Combined (eco)-physiological approach and 3D modelling to understand and analyse the role of the cuticle in the growth and quality of fleshy fruits
  29 April 2022

  The cuticle has a major role in controlling water loss, micro- and macro-cracking of the fruit, its shelf life, and its resistance to biotic and abiotic stresses. However, the interactions between the mechanical properties of the tissues and the regulation of water and carbon fluxes during fruit development, as well as their consequences on the final size and composition of the fruit, have been little (...)

• Numerical analysis of the stability of a forest slope integrating the spatio-temporal dynamics of the stand
  29 April 2022

  This project has set up a battery of digital tools and 2D and 3D models (based on the finite element method, FEM) to analyze in a generic way the influence of vegetation on slope stability. These tools and models take into account the mechanical effects (soil reinforcement by roots) and water (influence of roots on soil hydraulic conductivity and water status of the slope). They have been used in studies conducted in Togo (unpublished results) and on the Loess Plateau in China (results (...)

• Analysis and prediction of spatial and temporal variability of vine water status at the micro-regional scale from a network of local measurements and multi-source spatial data
  29 April 2022

  Two broad, inter-linked research domains were undertaken within this project. These related to a) the spatial and temporal evolution of vine water stress on the Languedoc viticulture plain and b) how information relating to vine water stress can be used to digitally map sub-soil properties at a regional scale.
  The first year of research concentrated primarily on the first domain - with an indepth analysis of what environmental factors drive or indicate vine water stress and how the (...)

• ’Exploration of the genetic variability of peach phenolic and triterpenoid com-pounds as natural defense against brown rot’
  3 May 2021

  ’Brown rot caused by Monilinia spp. provokes dramatic losses of fruit. In Southern Brazil, the crop losses, after harvest, can be higher than 25%. In France, damages reach the same order of magnitude depending on the year.’

• Development of a toolbox for modelling and simulating feedback between plant growth and biomechanics
  3 May 2021

  The PlantBioM project aimed to develop a toolbox to simulate the mechanical behavior of a growing plant on the basis of the beam theory. This toolbox, which comes in the form of a software library, is designed to be implemented in simulation platforms for plant growth, but also able to operate independently (stand alone version). The project was divided into 4 main steps: 1 - definition of the structure of the library: it was mainly to distinguish the different core modules (reference (...)

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