Ring-Spinning Performance of Extra Long Staple Upland Cotton

The Cotton Improvement Laboratory (CIL), Texas Agrilife Research, has developed Extra Long Staple (ELS) upland, Gossypium hirsutum, cotton that equals the length of American pima, G. barbadense, and has made meaningful progress in developing uplands with fiber strength equaling pima.  Two ELS upland lines along with FiberMax 832LL, and DPL Pima HTO were grown in a randomized complete block design with three replications in College Station, TX in 2007.  HVI, AFIS, and combed spinning performance data will be presented from roller-ginned and saw-ginned samples.  The two ELS upland lines exhibited higher fiber length than all checks and produced higher quality yarn than FiberMax 832LL.  Pima HTO had the greatest fiber bundle strength and outperformed the other genotypes for yarn quality.