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AbstractShort staple variety trials were conducted for four years at Prechel Farms near Coolidge Az. Six varieties were included in 1988, twelve in 1989, eight in 1990, and eight in 1991. Results from the statistical analysis showed significant differences among varieties in each of the four tests. Lint yields ranged from 908 to 1313 lbs. lint acre⁻¹ in 1988, 2844 to 4827 lbs. seedcotton acre⁻¹ in 1989, 695 to 1059 lbs. lint acre⁻¹ in 1990, and 1065 to 1286 lbs. lint acre⁻¹ in 1991. Those varieties that were medium to short- season maturity types yielded higher than long season maturity types in the 1988 and 1990 seasons. The reverse was true in the 1989 season and results were mixed in 1991.