Narrative
UA 107 is an open-canopy ("okra-leaf') cotton with other morphological traits similar to 'DP 393' ( check cultivar), except UA 103 has lower trichome density on abaxial leaf surfaces, stems, and bract margins. Over 16 replicated field tests at four sites in Arkansas, lint yields of UA I 07 were equal to lint yields of DP393 on Sharkey clay soil at Keiser (north), but were 8.3%, 8.7%, and 7.8% higher than DP 393 on silt loam soils at Judd Hill (north), Marianna (central), and Rohwer (south), respectively. Compared to DP 393, lint yields ofUA 107 were produced with equal number of seed per area, but higher weight of lint per seed (lint index), fibers per seed, and fiber density ( estimated number of fibers per unit area of seed surface). Compared to DP 393, UA107 produced higher plant height (103 vs 101 cm), open boll percentage (64 vs. 57%), lint percentage (40.3 vs 39.3%), lint index (8.3 vs. 7.5 g), seed index (12.1 vs. 11.2 g), fibers per seed (14.0% higher), and fiber density (8.2% more fibers per unit area of seed coat); equal seed per area, length uniformity index, and fiber strength; and lower leaf pubescence rating ( 1.3 vs. 2.8), stem pubescence rating (2.6 vs. 5.1 ), marginal bract trichome density (21.3 vs. 3 I .6 trichomes cm·1), micronaire (4.55 vs. 4.85) and fiber elongation (6.3 vs. 6.8%). UAI 07 is resistance to all U.S. races of Xanthomonas citri ssp. malvacearum ( ex Smith 1901) Schaad et al. 2007, the causal agent of bacterial blight. UA107 had slightly more damaged flowers than DP 393 (62 vs. 56%) in tests of resistance to tarnished plant bug [Lygus lineolaris (Palisot de Beauvois)]. Response ofUA 107 to fusarium wilt [caused by Fusarium oxysporum Schlect. F. sp. vasinfectum (Atk.) Snyd. & Hans.] was equal to the resistant check, M-3 I 5. Note: Plants, from which seed were produced, were evaluated and determined to be free of Bt (BG 1 and BGil) and RR Flex transgenes.