Several models of root system architecture exist in the literature but few of them are targeted at the organ level in response to environmental factors and none of them have modelled both annual plant and perennial tree root systems. Barczi et al. propose a generic, open-source, user friendly, 3D model (DigR) which simulates the architecture and dynamics of a wide range of root systems based on root-system architectural analysis and typology.
External plugins enhance virtual simulations of plastic responses of roots to environmental constraints. DigR can output contrasting root system structures such as tap-root, fasciculate, tuberous, nodulated and clustered root systems.
Jatropha curcas could be an oil crop with major biofuel potential, but the breeding germplasm has little variation. Botanists have found that there is genetic potential in previously overlooked non-toxic jatropha, but it needs conservation.
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