Hydroshoot

A static functional-structural plant model to simulate the interactions between shoot hydraulic structure, gas-exchange and energy-budget, from organ to canopy levels.

3D Geometric Modelling and Visualisation

Description

HydroShoot solves jointly the following processes:

  1. The hydraulic map of the shoot, that is the value of xylem water potential across all stem elements and petioles, following an Ohmic approach (Tyree and Evers, 1991 New Phytologist 119, 345-360).
  2. Leaf gas-exchange fluxes using the analytical solution of Yin and Struik (2009 Wageningen Journal of Life Sciences 57, 27-38) which couples the photosynthetic model of Farquhar et al. (1980 Planta 149, 78-90) to the stomatal conductance model of Leuning (1995 Plant, Cell and Environment 18, 339-355).
  3. Leaf energy budget considering radiative and convective transfers (Nobel P. 2005 Physicochemical and Environmental Plant Physiology. Elsevier Academic Press).

3D reconstruction of plant mockups of grapevines trained on “Lyre” and “Espalier bas” systems

hydroshoot_mockups

Comparison of photosynthesis rates

hydroshoot_photosynthesis

Comparison of transpiration rates

hydroshoot_transpiration

Comparison of leaf temperature values

hydroshoot_tleaf

Comparison of water potential values

hydroshoot_water_potential

Comparison of daily dynamics of absorbed radiation (a), photosynthesis rate (b), leaf temperature (c) and transpiration rate (d)

hydroshoot_water_potential

Demo Doc Code

Scientific publications

  • Albasha R, Fournier C, Pradal C, Chelle M, Prieto J, Louarn G, Simonneau T, Lebon E (2019) HydroShoot: a functional-structural plant model for simulating hydraulic structure, gas and energy exchange dynamics of complex plant canopies under water deficit - application to grapevine (Vitis vinifera L.). in silico Plants 1: diz007. 📄