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Dryad

Vegetative biomass production under different inorganic nitrogen forms of the USDA rice (Oryza sativa L.) diversity panel 1

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Mar 17, 2025 version files 2.50 MB

Abstract

We characterized early vegetative biomass production in response to inorganic nitrogen source, ammonium (NH4+) or nitrate (NO3), in 390 accessions from the USDA Rice Diversity Panel 1, which contains broad genetic diversity from the global germplasm. We grew these accessions under NO3 versus NH4+ nutrition, and under different concentrations of NH4+ as sole nitrogen sources in a greenhouse with day/night temperatures approximately 28°/24°C under natural sunlight in Davis, California (38°32'20.2"N 121°46'52.5"W) in 2018-2019. This dataset contains dry biomass (g) at three weeks after transplanting. We used the biomass data as inputs for Genome-Wide Association Analyses, with the genotype data publicly available from http://ricediversity.org/.