Evaluation location: , United States
The late Keith Schertz, USDA, ARS collected 536 sorghum lines consisting of natural and induced mutants, linkage analysis lines, and chromosome translocation lines from various sources around the world. In order to make this mutant collection available for sorghum genetic and genomic studies, the seed inventories were categorized, replanted, and phenotypes confirmed based on Dr. Schertz's orignal notes. Seeds were replanted at Halfway, Texas in 2004, and at Lubbock, Texas in 2006 and 2009. Standard cultivation practices were followed and irrigation was applied as needed. Phenotyping was conducted several times during the growing season at seedling, vegetative, reproductive, and maturity stages. Days to flowering, plant height, and exsertion were recorded.