Five generations (F4, BC1, BC, BC3, and BC4) of four photoperiodic primitive cotton accessions (Gossypium hirsutum L. T-78, T-174, T-326, and T-1149) were top crossed as males to four commercial cultivars (DES 119, DPL 50. STV 453 and COKER 315). The F₁ progeny from these cresses were sent to Tecoman, Mexico for seed increase during the winter of 1988-89. In the spring of 1989, the F₂ progeny was grown at two locations at the Mississippi State Research Farm. yield and fiber properties were analyzed to evaluated the F₂'s were generally the parents and each other. The F₂'s were generally superior to the male parents in all traits, but the superior to the male parents in all traits, but the superior to the male parents in all traits, but the F₂'s had lower fields, and lint percentages than the female parents. From the four accessions, accession 78 had the lowest lint yield, lint percent, and span lengths. The other three accessions performed about the same with the exception of accession 1149 which had weaker fiber strength. Within each accession, generations generally performed the same in generations on (50%) and five (97%) for all traits. In summary the best cultivar or female parents for lint yield, & lint percent was STV 453. Coker 315 was the best cultivar for span length & strength. However, the amount of exotic germplasm in the male parent had little influence on the performance of F₂ populations derived from these males and four female parents.