| Cry1Ac a | Parental Background | Cry1Ac a + Herbicide-Resistance Trait b | Parental Background |
| DP 20B c | DP 20 c | DP 409B/RR c | DP 5409 c |
| DP 50B c | DP 50 c | DP 422B/RR c | DP 20 c |
| NuCOTN 33B c | DP 5415 c | DP 451B/RR c | DP 51 c |
| DP 428B c | DP 51 c | DP 458B/RR c | DP 5415 c |
| ST 4691B d | ST 474 d | SG 125B/RR e | SG 125 e |
| PM 1218B/RR f | PM 1220 f | ||
| ST 4892B/RR d | ST 474 d | ||
| PM 2280B/RR f | HS200 f |
b Roundup Ready®; Monsanto Co., St. Louis, MO).
c Delta & Pineland® variety (Delta & Pineland Co., Scott, MS).
d Stoneville Pedigree Seed variety (Memphis, TN).
e Sure-Grow® variety (Delta & Pineland Co., Scott, MS).
f Paymaster® variety (Delta & Pineland Co., Scott, MS).