Location: Grain Quality and Structure Research
Project Number: 3020-30600-002-026-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Sep 1, 2026
End Date: Aug 31, 2027
Objective:
This collaborative sorghum improvement effort advances USDA priorities by focusing on genetic innovations that enhance producer profitability, expand market opportunities, and strengthen the long-term productivity and resilience of U.S. agriculture. The project develops and evaluates sorghum germplasm with increased seed size and improved grain quality traits that can reduce production variability, improve processing value, and contribute to more stable economic returns for growers and end users. By introgressing large-seed traits into elite and commercially relevant genetic backgrounds, the initiative supports the expansion of high-value grain markets for feed, milling, and future biobased applications. Rigorous multi-environment evaluation of agronomic performance, stability, and end-use characteristics fosters a more resilient and competitive agricultural sector. The integration of marker-enabled breeding strategies accelerates genetic discovery and precision trait deployment, helping producers benefit from advanced technologies and improved crop performance. Collectively, these coordinated research and breeding activities contribute to more efficient resource use, enhanced grain quality, and strengthened market value, supporting long-term agricultural sustainability and the broader goals of U.S. crop improvement efforts.
Approach:
The project will advance germplasm development including breeding and genetic trait package of large seed sorghum alongside phenotyping to characterize end-use value improvement associated large grain quality characteristics. Breeding efforts will focus on advancing germplasm to determine underlying genetics and introgress the trait in elite germplasm. Existing and newly developed breeding populations will be evaluated and advanced through both summer and winter nursery environments to accelerate generation turnover and trait fixation. Selected parental materials and lines of interest possessing favorable seed size and grain quality characteristics will be crossed and advanced into elite and commercially relevant testing backgrounds. Co-advancement strategies will be used to simultaneously: 1) evaluate large seed size traits within agronomically relevant genetic backgrounds and production environments to assess performance, adaptation, and end-use value; 2) accelerate genetic characterization and deployment through iterative population development, phenotyping, and selection, and 3) phenotypic evaluations will include seed size, grain morphology, pericarp characteristics, yield components, standability, and additional agronomic traits relevant to commercial production systems including trade offs associated with increased seed size. The effort integrate phenotypic and genetic analyses to support identification of genomic regions, markers, and breeding strategies associated with improved seed size and grain quality traits. Resulting germplasm and datasets will support future marker-assisted and genomics-enabled breeding efforts for large seed sorghums. Project activities will emphasize translational advancement of traits into deployable sorghum breeding materials through iterative collaboration among geneticists, breeders, and end-use stakeholders. The coordinated advancement of germplasm into commercially relevant testing backgrounds is expected to improve both the speed of genetic discovery and the evaluation of trait utility under practical production and utilization conditions.