The University of Tennessee Cotton Agronomy Program provides an unbiased evaluation of experimental and commercial varieties available for production in Tennessee each year. The 2019 program consisted of two types of trials: the Official Variety Trials (OVTs) and the County Standard Trials (CSTs). The OVTs are small plot, replicated variety trials composed of experimental and commercial varieties. The CSTs are large plot variety strip trials located throughout the Western and Central regions of Tennessee and are only composed of major commercial cultivars. Five OVTs, 9 XtendFlex CSTs and 5 Enlist, GlyTol/LibertyLink and XtendFlex CSTs were conducted during the 2019 season. Subsequently, the CST data has been summarized in two separate tables. One set includes all 18 varieties (XF, GL, and FE) and the second set includes 14 XF varieties.
This publication is intended to help cotton producers identify varieties that are high yielding, are stable in yield performance across years, and produce high-quality fiber; therein, included information should provide those in the seed industry, crop consultants, and the UT Extension service insight into varietal adaptation of all tested varieties to Tennessee field environments.