CW 69117
1. CW 691 17 is a synthetic variety with 41 parent plants which were selected for high seed yield from nurseries near Woodland, California. Parent plants were selected from various populations which were developed by a combination of phenotypic recurrent selection and strain crossing with selection for resistance to one or more of the following pests: Fusarium wilt, Verticillium wilt, Phytophthora root rot, anthracnose (race 1), spotted alfalfa aphid, blue alfalfa aphid, and stem nematode. Parentage of CW 69117 traces to Altiva, DK 191, ACA 900, Super Supreme, Topacio, 5929, and miscellaneous Cal/West Seeds breeding populations. Approximate germplasm source contributions are as follows: M. varia (2%), Turkistan (9%), Flemish (3%), Chilean (6%), Peruvian (2%), Indian (24%), African (53%), and Unknown (1%).
2. CW 69117 is adapted to the Southwestern area of the U.S. and Mexico and is intended for use in the Southwestern U.S. Mexico, and Argentina. CW 69117 has been tested in California and Mexico.
3. CW 69117 is a very nondormant variety with fall dormancy similar to FD9 checks. Flower color observed in the Syn.2 generation is greater than 99 /0 purple, with a trace of variegated, cream, white, and yellow.
4. CW 69117 has high resistance to anthracnose (race 1), Fusarium wilt, Phytophthora root rot, and spotted alfalfa aphid, with resistance to stem nematode and blue alfalfa aphid. Reaction to bacterial wilt, Verticillium wilt, pea aphid, Aphanomyces root rot (race 1), and root knot nematode has not been adequately tested.
5. Seed increase of CW 69117 is on a limited generation basis with one generation of breeder and two generations of the foundation and certified seed classes. Breeder (Syn.l), foundation (Syn.2 or Syn.3), and certified (Syn.3 or Syn.4) classes will be recognized. Production of Syn.3 foundation seed requires consent of the breeder. Breeder seed was produced under open isolation near Woodland, California in 1996. Sufficient foundation seed for the projected life of the variety will be maintained by Cal/West Seeds. Stands of foundation and certified seed fields are limited to 3 and 6 years, respectively.
6. Certified seed of CW 69117 will be available in 2000.
7. No decision has been made regarding Plant Variety Protection.
8. This information can be forwarded to the PVP office.
9. Variety Name: Date submitted: November 16, 2000
Experimental Designation: CW 69117.