Registration of spring malting barley germplasm ARS84‐27, ARS98‐31, and ARS10‐82

Abstract

Germplasm lines are the most important genetic resources for cultivar development. ARS84‐27 (Reg. no. GP‐212, PI 693601), ARS98‐31 (Reg. no. GP‐213, PI 693602), and ARS10‐82 (Reg. no. GP‐214, PI 693603) are three high‐yield and good malting quality two‐rowed spring malting barley (Hordeum vulgare L.) germplasm lines developed by the USDA‐ARS breeding program at Aberdeen, ID. All three germplasm lines were evaluated in 27 irrigated and 14 dryland trials. ARS10‐82 had significantly higher yield than all the checks, and ARS98‐31 and ARS84‐27 were competitive with the best check cultivar ‘Voyager’ (Busch Agricultural Resources). Malting evaluation results showed acceptable quality profiles with specific quality traits including high extract, low protein content, and low beta‐glucan for the years tested. They are all classified as moderately resistant to Fusarium head blight infection with low deoxynivalenol (DON) levels.

Relevant Fusarium Mycotoxins in Malt and Beer

“…New varieties of malting barley resistant to FHB are constantly registered [ 44 , 45 ], with up to 50% less DON accumulated in the kernels compared to a similar non-resistant variety. Nonetheless, Hückelhoven, Hofer, Coleman and Heß (2018) [ 46 ] describe in their review the challenges related to the selection of an FHB-resistant barley being considerably greater compared to wheat due to the high rate of symptomless development of the infection and thus restricting the possibility to select resistant genotypes.…”

Registration of three winter malting barley lines

“…Agronomic trait measurement was conducted as described previously (Hu et al, 2021), and the steps are repeated here for convenience. Grain yield and test weight were measured using the Harvest Master system (Juniper Systems, Inc.) on the combine from all locations within the state of Idaho and included similar data from other collaborators at different locations.…”