Disclaimer: This is a subset created from an on-going evaluation experiment and needs to be treated as preliminary data subject to validation and potential change.

This dataset presents 72 accessions classified as potentially resistant to Sweet Potato Virus Disease (SPVD). The data come from a field experiment conducted at the CIP–San Ramón station (Junín, Peru), where 249 clones from the Central Collection of the CIP Sweet Potato Germplasm Bank were evaluated under two contrasting treatments: (1) the virus zone, an environment with high viral pressure, surrounded by SPVD-infected plants to promote natural infection, and (2) the control zone, a physically isolated area protected through periodic pesticide applications to reduce vector presence. To assess SPVD severity in the clones, expert evaluators conducted periodic visual assessments of symptoms, and the total yield of each clone was recorded at harvest. Based on these evaluations, a classification table with three SPVD response categories—resistant, tolerant, and susceptible—was proposed, using as indicators the yield reduction of clones grown in the virus zone compared to the control, as well as the average severity scores from visual assessments, following the methodology described in Kreuze et al. (2024). The visual SPVD severity assessments were complemented with multispectral and thermal aerial imagery captured at solar noon, when plants experience their highest stress levels. Features extracted from the optical and thermal images, together with the SPVD attack classification table described above, were used to train machine learning models to classify the three SPVD response categories.

The 72 accessions described in this dataset correspond to those classified as potentially resistant to SPVD.

The software for classifying SPVD resistance of 249 clones from CIP Germplasm Bank is available at the following dataverse link: https://doi.org/10.21223/P3/CRYBP2

Kreuze et al. (2024). High-throughput characterization and phenotyping of resistance and tolerance to virus infection in sweetpotato. Virus Research, 339, 199276. https://doi.org/10.1016/j.virusres.2023.199276