|VAN ESBROECK, G|
|May Iii, Oscar|
Submitted to: North Carolina Agricultural Research Service Technical Bulletin
Publication Type: Other
Publication Acceptance Date: 10/1/1997
Publication Date: N/A
Interpretive Summary: Breeders must have a thorough knowledge of germplasms that are potential parents for inclusion in a crossing program. Crop improvement relies on new combinations of genes that can be achieved through mating unrelated germplasm. Until now, breeders have not had access to an exhaustive catalog that details available germplasm. We have compiled listings of all germplasm released since 1970 by public development programs. The listings include the releasing organization, year of release, pedigree, and important characteristics that make the germplasm valuable. Included also in this publication is a listing of germplasms along with pedigrees that were never registered in Crop Science. These data should facilitate cotton improvement.
Technical Abstract: Crop improvement has been achieved through recombination and fixation of superior genes. This process can be facilitated by knowledge of the pedigree and distinguishing characteristics of potential parents to be included in a breeding program. Mating of closely related parents reduces the amount of recombination and the probability of transgressive segregation. This research documents pedigrees and distinguishing characteristics of Upland and Pima cotton germplasm released since 1970. Most, but not all, of the germplasm has been registered in Crop Science. This information will allow coefficient of parentage to be estimated in a forthcoming publication. We have compiled Crop Science registration numbers, year of release, P.I. number when available, releasing organization, and important attributes of the germplasm. A portion of the germplasms have been released but not registered in Crop Science. We have included this material in a separate listing. These data should be useful to breeders and geneticists involved in cotton improvement.