Skip to main content
ARS Home » Plains Area » Stillwater, Oklahoma » Wheat, Peanut, and Other Field Crops Research » Research » Research Project #436991

Research Project: Aphid-Resistance Malting Barley Germplasm Enhancement and Evaluation

Location: Wheat, Peanut, and Other Field Crops Research

Project Number: 3072-21000-009-30-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Jul 1, 2017
End Date: Jun 30, 2021

Objective:
Continue screening of the NSGC of barley to identify new sources of resistance to BCOA, RWA and GB; transfer resistance genes to adapted malting barley backgrounds; progeny testing of newly identified BCOA resistant lines and if homozygous resistance is confirmed, develop genetic populations necessary for inheritance and genetic diversity studies; evaluate new resistant lines in preliminary yield trials; evaluate superior lines in advanced yield trials at several locations prior to germplasm/cultivar release; determine genetic diversity and genetic control of RWA, GB, and BCOA resistance in developed germplasm/cultivars; and monitor the adaptation of newly introduced invasive aphid pest, HGA. Begin development of winter malting barleys adapted to the Great Plains through the pedigree method.

Approach:
Continue greenhouse screening of the NSGC of spring and winter barley for BCOA resistance; progeny testing of identified BCOA-resistant lines followed by transfer, through backcross breeding, of resistance into adapted malting barley backgrounds; if homozygous resistance is confirmed, validation of the greenhouse screening technique and rating scale for BCOA; conduct multi-state field surveys for the presence of HGA a new invasive aphid pest on barley. Make crosses to transfer malting quality into winter malting barleys adapted to the Great Plains and increase F1 from crosses to F2.