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DP 494 RR: A New Roundup Ready Cotton Variety with Outstanding Fiber Quality

David W. Albers, Don L. Keim, and Doug Shoemaker

ABSTRACT

Delta and Pine Land Company will introduce a new, mid-full maturing picker Roundup Ready variety, DP 494 RR, in the 2004-growing season. DP 494 RR has a tall plant type with semi-smooth leaf and good storm resistance. DP 494 RR was developed as a backcross using DP 491 as the recurrent parent. The yield and HVI fiber quality of DP 494 RR is very similar to DP 491, which is known for outstanding yield potential and excellent fiber quality potential. Field testing of DP 494 RR, both in Delta and Pine Land Company tests and University tests, has indicated yield improvements from 1.1% to 8.5% and crop value improvements from 4.7% to 9.7% compared to other commercial Roundup Ready mid-full maturity varieties. The HVI fiber characteristics for DP 494 RR in the head to head comparisons included a staple of 36.7 to 37.2; micronaire of 4.3 to 4.5; and fiber strength of 32.5 g/tex. The regional performance of DP 494 RR showed the strongest yield and crop value potential in the South Delta and Southern Southeast U.S. Seed supply is expected to be good for commercial introduction in 2004.





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Document last modified 04/27/04