Registration of PD 05035 and PD 05041 Germplasm Lines of Cotton

PD 05035 (Reg. No. GP-985, PI 672483) and PD 05041 (Reg. No. GP-986, PI 672484) are noncommercial breeding lines of cotton (Gossypium hirsutum L.) jointly released by the USDA–ARS, the Clemson University Experiment Station, and Cotton Incorporated in 2014. PD 05035 was selected from a cross of PD 93007 and cultivar Sure-Grow 747, and PD 05041 from a cross of PD 93046 and Sure-Grow 747. PD 05035 and PD 05041 possess broad adaptation from California east to Virginia and display outstanding fiber quality properties significantly better than several commercial cultivars. Specifically, PD 05035 and PD 05041 possess outstanding fiber strength and length potential, while also maintaining micronaire values lower than commercial cultivars. PD 05035 and PD 05041 also display fiber spinning characteristics superior to commercial cultivars. Both germplasm lines possess an okra leaf shape, display mid-season maturity, and produce lint yields similar to or better than commercial cultivars. PD 05035 and PD 05041 are broadly adapted across the entire U.S. upland cotton production region. The combination of longer fiber length, stronger fiber strength, lower micronaire, improved fiber spinning characteristics, okra leaf shape, and broad adaptation make PD 05035 and PD 05041 valuable genetic resources to cotton breeding programs.