Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 1/31/1996
Publication Date: N/A
Interpretive Summary: Public breeding programs enhance germplasm for traits desired by end users such as commercial cultivar development programs and the textile industry. This research documents the development of 10 cotton germplasm lines with beneficial traits such as high yield potential and variable maturity and with fiber properties considered desirable by the textile industry. The germplasm line PD-3-14 combines high yield in full-season production systems and excellent fiber spinning properties when compared with commercial cultivars. The germplasm lines PD 93030, PD 93034, and PD 93057 combine excellent yarn strength and lint yield in full-season production systems. PD 93007, PD 93043, and PD 93046 possess an unusual combination of high lint yield and fiber quality. The remaining germplasm lines, PD 93009, PD 93019, and PD 93021, express yield and fiber quality superiority in both full-season and early-maturity trials. These 10 germplasm lines have been distributed to all of the major commercial and private cotton breeding firms in the USA and should have a positive impact on the cotton industry.
Technical Abstract: Ten cotton germplasm lines, PD-3-14, PD 93030, PD 93034, PD 93057, PD 93007, PD 93043, PD 93046, PD 93009, PD 93019, and PD 93021, combining high yield potential, excellent fiber quality, and variable maturity were released in 1995. The germplasm line PD-3-14 was the result of a selection program to reduce the frequency of the frego bract trait in PD-3 3fiber quality cultivar PD-3 by an average of 7%. The yarn strength of PD- length, and micronaire being similar. The remaining lines were evaluated in full-season (8 May) and late-planted (10 June) tests. In full-season trials, PD 93030, PD 93034, and PD 93057 averaged 2%, 8%, and 10% higher lint yield, respectively, than PD-3. These lines also averaged 3-4% better yarn strength than PD-3. In late-planted trials, PD 93007, PD 93043, and PD 93046 are earlier maturing than PD-3, and average 20%, 27%, and 21%, respectively, better lint yield. Their yarn strength is similar to that of PD-3. PD 93009, PD 93019, and PD 93021 exhibit yield superiority over PD-3 when evaluated in both full-season and late-planted trials. Compared with PD-3, PD 93009, PD 93019, and PD 93021 averaged 12%, 8%, and 5%, respectively, higher yield. Fiber properties and yarn strength of PD 93009 and PD 93019 are similar to PD-3, while the yarn strength of PD 93021 averages 3% higher.