Germplasm: AKER_12177

AKER_12177

PI 663872

https://doi.org/10.15454/UWQJI3

C943 recombines self-fertile, backcross lines developed over a 12 year period to combine disease resistance in a higher % sugar base. The recurrent parent was similar to C931 (PI 636340). The high % sugar donor parents were accessions from Poland. The component lines were CZ25-9 (PI 615520), C930-19 (PI 628758), C930-35 (PI 628759), Z131-14, Z131-18, and Z131-20. These lines were combined through segregating genetic male sterility in each component to produce 3943 in 2003. Rhizomania resistant roots of population 3943 were recombined through segregating male steriles to produce 4943. From population 4943, S1 progenies were generated and evaluated under rhizomania conditions in replicated field tests. In 2007, 19 S1 progenies selected on the basis of % sugar and sugar yield were increased in bulk to produce C943.

United States of America