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The Ag Data Commons is migrating

The Ag Data Commons is migrating to a new institutional portal on Figshare. The current system is available for search and download only. The new platform is open for submission with assistance from Ag Data Commons curators. Please contact NAL-ADC-Curator@usda.gov, if you need to publish or update your datasets.

Other Access

The information on this page (the dataset metadata) is also available in these formats:


via the DKAN API

Data Extent

TERRA-REF Season 4 and 6 Sorghum phenotypes and agronomic metadata in BrAPI format

picture of TERRA REF field scanner in Maricopa, AZ

This data represents a small subset of the TERRA-REF release available on Dryad (LeBauer et al 2020, https://doi.org/10.5061/dryad.4b8gtht99). In addition to harvested biomass for each cultivar, it includes plot location, planting date, harvest date, fertilizer application, genotype / accession names and metadata, and additional agronomic management metadata for a population of Sorghum bicolor evaluated over two growing seasons. Please refer to the parent dataset for additional information on experimental details.

This dataset also contains an archive of software used to translate BrAPI formatted data into ARDN-compliant formats. The code and intermediate files used to demonstrate a run of the crop model DSSAT can be viewed on GitHub https://github.com/cct-datascience/ardn-terra-ref.

One way in which the data can be accessed is through a BrAPI-compliant endpoint at terraref.org/brapi. This dataset is a snapshot of the TERRA-REF BrAPI endpoint contents, representing the minimum data and metadata required to run a crop model. These BrAPI-compliant json files were downloaded from terraref.org/brapi. BrAPI is a data format widely used by plant breeders, and is described in Selby et al. 2019, https://doi.org/10.1093/bioinformatics/btz190

Release Date
Spatial / Geographical Coverage Area
POLYGON ((-111.9747967 33.0764953, -111.9747966 33.0745228, -111.9750963 33.074485715, -111.9750964 33.0764584, -111.9747967 33.0764953))
Ag Data Commons
Spatial / Geographical Coverage Location
Agricultural research field under the field scanner at the University of Arizona Maricopa Agricultural Center in Maricopa, Arizona
Temporal Coverage
April 20, 2018 to August 2, 2018
Contact Name
LeBauer, David
Contact Email
Public Access Level