Gerhard H. Buck-Sorlin, Ole Kniemeyer and Winfried Kurth (Brandenburgische Technische Universität Cottbus and Institute of Plant Genetics and Crop Plant Research)


Model category FSPM
Plant part Shoot
Scale Organs, Whole_plant, Field
Licence open_source
Operating system MacOs, Windows, Linux
Programming language Java, RGG, XL
Format of model inputs and outputs Text files
Species studied Barley
Execution environment Console, Stand-alone application
Modelling environment GroIMP

Scientific article

Barley morphology, genetics and hormonal regulation of internode elongation modelled by a relational growth grammar
Gerhard H. Buck-Sorlin,Ole Kniemeyer and Winfried Kurth
New Phytologist, 2005 View paper

Model description

The BarleyBreeder model consists of a set of morphogenetic rules, combined with a metabolic regulatory network, which simulates the biosynthesis of gibberellic acid (GA1). GA1 and two of its metabolic precursors are transported along the developing simulated structure. Local concentrations of GA1 determine internode elongation. The model is able to produce realistic looking three-dimensional above-ground plant architectures. Furthermore, virtual barley individuals can be chosen interactively from a population, based on genotype, and (sexual or asexual) reproduction can be simulated. Seven Mendelian genes have been implemented in the model so far; some of these directly influence the GA-regulation network. This model could in the future be used as a ‘breeder’s tool’ using recombination distances of an arbitrary set of marker genes and QTL, thereby allowing ideotype breeding.

Some case studies

A phytochrome-based shade detection and object avoidance model has been coupled to this existing morphogenetic structural model of barley (Buck-Solin et al. 2008;