Genotypic and phenotypic data of five different double haploid population segregating for responses to Spot Form of Net Blotch disease

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Data description: - The double haploid population was created from the cross between barley cultivar Spartacus with various barley lines resistant to spot form of net blotch disease - The genotypic data was generated using Illumina Infinium 40K wheat barley BeadChip SNP marker platform - All populations were evaluated using a randomised complete block design with three replications. - Inoculation was performed using a uniform source of SFNB inoculum derived from infected barley stubble. - Phenotypic assessments were conducted at three developmental stages: seedling, stem elongation, and heading. - Disease severity was scored on a 1–9 scale, where 1 indicates high resistance and 9 indicates high susceptibility. Data collection time details: 2022 - 2025 Number of files/types: 1 .xlsx file Special software required to open files: N/A Geographic information (if relevant): Western Australia Keywords: barley, double haploid, phenotype, genotype, spot form of net blotch, disease resistance