Description:
CMS GIG2-RVoriginated from a single male-sterile plant among progenies of wild H. giganteus L. accessions 1934 (PI 503250) crossed with HA 89, is BC6F3 bulk with the pedigree of H. giganteus/7*HA 89/3/H. giganteus/6* HA 89//H. maximiliani 1631 (amphiploid), BC6F3. CMS GIG2-RV has the genotype of rf4rf4rvrv and produces reduced-vigor plants when self-pollinated.