|May Iii, Oscar
|HOWLE, D - CLEMSON UNIV
|GREEN, C - DELTA & PINE LAND CO.
|CULP, T - USDA-ARS (RETIRED)
Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 4/1/1996
Publication Date: N/A
Interpretive Summary: Cotton germplasm with improved fiber properties is needed by the textile industry and can be used by other cotton breeding programs as a means to improve fiber quality in their breeding material. Public breeding programs that develop germplasm freely distribute seed of the germplasm lines to other breeders and geneticists and have a positive effect on cotton breeding efforts. Modernization of yarn spinning technologies in the textile industry is demanding higher fiber strength cotton. The germplasm line PD-3-14 represents an improved level of fiber strength without a decrease in lint yield. This germplasm line should be useful to other cotton breeders and geneticists as a source of improved fiber properties in a high-yielding genetic background.
Technical Abstract: PD-3-14 cotton germplasm line was derived from the bulk seed increase of a single-plant selection made in a block of breeder seed of the cultivar 'PD-3'. PD-3 is a southeastern U.S. cultivar combining high lint yield and superior fiber quality. A selection program to reduce the frequency of the recessive frego bract gene in PD-3 was conducted by C.C. Green and T.W. Culp. They inadvertently selected for increased lint yield and improved fiber quality. In nine yield trials conducted in Florida, Georgia, and South Carolina, PD-3-14 averaged 7% higher lint yield than PD-3. Data from 9 locations of the 1993 Regional High Quality Test and 3 locations of the Georgia Strains Test indicated that PD-3-14 yielded about 3% higher than Deltapine 90. Compared to Deltapine 90, fiber strength (stelometer) of PD-3-14 is about 10% higher, 2.5% span length is about 2% higher, and micronaire reading is about 6% lower. Compared with PD-3, yarn strength of fPD-3-14 has averaged 2% higher in three years of testing. Other fiber properties such as fiber strength, 2.5% span length, and micronaire reading are similar between PD-3 and PD-3-14. PD-3-14 should be useful to breeders and geneticists as a source of excellent fiber and spinning properties in an agronomically-acceptable line.