DK141(amended)
1. DK 141 is a 135-plant synthetic variety resulting from phenotypic recurrent selection for resistance to Aphanomyces root rot (Race 2). Parental germplasm traces to Ovation, Paramount, Pro Cut II, and Trident II. Approximate germplasm source contributions are: M. falcata - 8%; Ladak - 17% M varia - 29%; Turkistan - 5%; Flemish -38% and Chilean -3%. .

2. DK 141 is adapted for use in the North Central and East Central regions of the U. S. DK 141 has been yield tested in Illinois, Pennsylvania, and Wisconsin.

3. Flower color of DK 141 at Syn 2 approximates 100% purple with a trace of cream, variegated, and white. The winter survival of DK 141 is similar to Dart (Class 3), and the fall dormancy of DK 141 is similar to Legend (Class 4).

4. DK 141 has high resistance to anthracnose (Race 1), bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot, Race 1 Aphanomyces root rot; and Race 2 Aphanomyces root rot; resistance to pea aphid spotted alfalfa aphid; and moderate resistance to stem nematode and Sclerotinia crown and stem rot Reaction to blue alfalfa aphid, and root knot nematode has not been adequately tested.

5. Breeder seed (Syn 1) was produced in 1993 on 135 plants under cage isolation at Bakersfield, CA. Sufficient Foundation (Syn 2) seed will be produced for the expected life of the variety and will be maintained by W-L Research. One generation of Breeder (Syn 1) and two generations each of Foundation (Syn 2 or 3) and Certified (Syn 3 or 4) are recognized. The maximum permitted length of stand for Foundation and Certified seed fields are 3 and 5 years, respectively. Foundation seed must be produced above 40 degrees North latitude. Production of Syn 3 Foundation seed requires consent of the breeder.

6. Certified seed will be marketed in 1997.

7. It is undecided whether application will be made for Plant Variety Protection.

8. The information in this application can be turned over to the PVP office. Variety Name: DK 141

9. Experimental Designation: ClO5

Date NAVRB first accepted this variety: January 1997

Date this amendment submitted: November 1997.