Characterization 2025
This dataset contains morphological characterization data collected during the 2024 field evaluation cycle. It includes standardized agro-morphological descriptors, trait measurements, and observational records for the rice accessions evaluated as part of the 2025 genebank characterization activities. Data were collected on 30 traits following AfricaRice genebank protocols to ensure consistency, comparability, and usability for genebank users, breeders, and researchers.
AfricaRice Genebank 2025
The evaluation was conducted at the AfricaRice Research Station in M’bé, Bouaké, Côte d’Ivoire, located within the sub-humid tropical savanna (Guinean savanna) agro-ecological zone. The site experiences a tropical wet-and-dry climate with two rainy seasons—March to July and September to October—followed by a pronounced dry season. Annual rainfall averages between 1,000 and 1,200 mm, and mean temperatures generally range from 24 to 29°C. The soils are predominantly ferrallitic and hydromorphic, with low to medium natural fertility, but well suited to irrigated and lowland rice research due to the availability of controlled water-management infrastructure. Field experiments were carried out in well-maintained research plots, where land preparation, fertilization, irrigation, and pest management followed standard AfricaRice protocols. The site typically experiences moderate pest and disease pressure characteristic of humid savanna environments, along with occasional abiotic stresses such as short dry spells and fluctuations in water availability depending on the season.
FAO WIEWS code of the institute where the accession is maintained. The codes consist of the 3-letter ISO 3166 country code of the country where the institute is located plus a number (e.g. COL001). The current set of institute codes is available from http://www.fao.org/wiews. For those institutes not yet having an FAO Code, or for those with ‘obsolete’ codes, see ‘Common formatting rules (v)’.
This is the unique identifier for accessions within a genebank, and is assigned when a sample is entered into the genebank collection (e.g. ‘PI 113869’).
Genus name for taxon. Initial uppercase letter required.
The Digital Object Identifier (DOI) associated with the accession and registered in the portal of the Global Information System (GLIS) of the ITPGRFA. When provided, this single, distinct DOI acts as the primary identifier for the accession.
Example: 10.18730/5N2PQ
Number of days from effective seeding until 80% of the plants are heading
Measure the highest leaf below the flag leaf (penultimate leaf) on the main culm from the ligule to the tip of the blade on five representative plants. Calculate average to nearest centimeter.
Measure at the widest portion of the penultimate leaf (i.e. highest leaf below the flag leaf) on the main culm on five representative plants. Calculate average to nearest cm. Oryza sativa leaf can be coded as narrow (< 1 cm), internediate (1-2 cm) or broad (>2 cm).
Ligule shape
Culm Angle - rice direct-seeded in rows.
Characterization from 2024 Regeneration
Culm number (count) at reproductive
Characterization data in 2025 from field regeneration
Panicle shattering
Number of days from effective seeding until 80% of the grains on the panicles are fully ripened
Days to 80% fully headed
Characterization 2024 from regenerative agriculture
Characterization 2025 from field regeneration 2024
Scored at maturity based on the observed degree of lodging.
Leaf blade pubescence on blade surface at vegetative stage
List of accessions included in the dataset