Previous Research<BR>Abernathy et al. 1969. Agron. J. <BR> <BR>48 cotton varieties evaluated for resistance to propazine broadcast PRE at 0.56 kg/ha <BR> <BR>Sandy loam with OM <1% <BR> <BR>Injury ratings ranged from 3-53% <BR>Aubun M, Acala B-3080, Paymaster 303 = 3% <BR>Coker 5110, Coker 312 = 8% <BR>Paymaster 111A, Deltapine SR-2 = 50% <BR>Blightmaster A-5 = 53% <BR> <BR>Less than 20% was regarded as a tolerant response to propazine<BR>