Variety selection is one of the most important decisions a grower will make contributing to the success of his/her cotton crop. It is critical, that a grower have as much information as possible in order to make an informed decision regarding variety selection.
In an effort to help supply reliable variety performance information the University of Arizona conducts a statewide Upland cotton variety testing program. This program consists of a few different types of trials. The first is a small plot evaluation of commercially available varieties along with experimental varieties, and is conducted in 3 locations across Arizona including; Yuma, Maricopa, and Safford. This testing program is called the University of Arizona Upland Cotton Advanced Strains Testing Program.
Another type of University sponsored trial is a large plot, replicated strip trial conducted on grower cooperator farms in a wide variety of locations across Arizona. These are large plot strip trials that consist of plots extending the full length of the irrigation run at each location. This program is titled the University of Arizona Upland Cotton Variety Testing Program
Evaluations of Pima (extra long staple - ELS) cotton variety performance were also conducted at one location across Arizona in 2011. Results from this evaluation are also presented in this booklet.