Description:
The three germplasm lines, USDA-ARS-GMD2427, USDA-ARS-GMD2442, USDA-ARS-GMD24141, are tetraploid trihybrids, G. arboreum/G. hirsutum/G. aridum (AADD). These germplasm lines were developed by crossing diploid G.arboreum (AA) accession A2-190 (PI 615699) as the female parent and a hexaploid bridging line (AADDDD), G. hirsutum cultivar NC8/G. aridum accession G 248, as the male parent. The hybrids were backcrossed twice to MD 51ne and once to MD 25.