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Title:   Author  item
                                            Percy, Richarditem
                                            Ulloa, Mauricioitem
                                            ZHANG, JINFA - New Mexico State University
  Submitted to: Journal of Plant Registrations
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 4/16/2009
                                    Publication  Date: 9/1/2009
                                    Citation: Percy, R.G., Ulloa, M., Zhang, J. 2009. Registration of PSI 113 and PSI 425 germplasm lines of Pima cotton possessing superior fiber quality traits. Journal of Plant Registrations. 3(3):297-299.Interpretive Summary: Success for extra-long staple cotton fiber in the global market is determined by fiber quality, price, and reliability of supply.  Lines PSI 113 and PSI 425, possessing superior fiber, have been jointly released by the Agricultural Research Service, United States Department of Agriculture and New Mexico State Agricultural Experiment Station to keep American Pima at the competitive forefront.  Lines PSI 113 and PSI 425 were developed to provide public and private breeders with agronomically improved resources for genetic improvement of fiber quality, and to provide resources for broadening the genetic base of American Pima germplasm.  Lines PSI 113 and PSI 425 possess higher fiber strengths and greater fiber lengths than currently present in commercial Pima cultivars and have yield potentials that are within the range of a commercial Pima cultivar.  Seed of these lines are available in small quantities, upon request, to public and private breeders and geneticists for use in their cotton improvement efforts.
                                Technical Abstract: Cotton (Gossypium barbadense L.) germplasm lines PSI 113 (Reg. No. GP-916, PI 655939) and PSI 425 (Reg. No. GP-917, PI 655940) were jointly developed and released by the Agricultural Research Service, United States Department of Agriculture and New Mexico State Agricultural Experiment Station in 2008.  The purpose of the release was to provide public and private breeders with agronomically improved resources for genetic improvement of fiber quality, and to serve as genetic resources for broadening the germplasm base of Pima germplasm in the United States.  Lines PSI 113 and PSI 425 originated from a cross made at New Mexico State University in 1997 of germplasm line 8810 and the Sea Island breeding line NMSI 1601, followed by individual plant selection within the F2, F3, and F4 generations and progeny selection in the F5 generation.  Eight progeny lines, along with two commercial check cultivars and two high fiber quality check lines, were selected for evaluation in replicated tests at Maricopa, AZ, Shafter, CA, Westside, CA, and Las Cruces, NM in 2005 and 2006.  Across locations, lines PSI 113 and PSI 425 exhibited fiber lengths and strengths superior to commercial check cultivars and fiber yields not differing from the commercial cultivars.  Lines PSI 113 and PSI 425 were selected for release from among the eight progeny lines based upon their overall agronomic performance and improved fiber characteristics across locations.


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