1. Precedent is a synthetic variety with 301 parent plants. Parent plants trace to populations selected for resistance to Aphanomyces root rot and one or more of the following pests: bacterial wilt, Verticilliurn wilt, anthracnose, Phytophthora root rot, Leptosphaerulina leaf spot and spotted alfalfa aphid. Phenotypic recurrent selection was used. The following germplasm sources were used in the development of Precedent: 2980, Bronco, Asset, Pro--Cut 2, and Legend. Approximate germplasm source contributions are: M. falcata -- 4%, Ladak -- 6%, M. varia -- 28%, Turkistan - 3%, Flemish -- 52% and Chilean -- 7%.
2. Precedent is adapted to and intended for use in the north central, northeastern and northwestern U.S. for hay, haylage, greenchop, or dehy production. It has been tested in Wisconsin, New York, Iowa, Idaho, Michigan.
3. Precedent is a moderately dormant variety. Fall dormancy is similar to Saranac. Flower color is 83% purple, 17% variegated, and a trace of white, yellow and cream.
4. Precedent has high resistance to bacterial wilt and Phytophthora root rot with resistance to anthracnose(race 1), Fusarium wilt, Verticillium wilt, pea aphid, spotted alfalfa aphid and Aphanomyces root rot (race 1). Reaction to stem nematode and blue alfalfa aphid has not been adequately tested.
5. Seed increase is on a limited generation basis with one generation of breeder and two generations of the foundation and certified seed classes. Breeder (Syn.1), foundation (Syn.2 or Syn.3), and certified (Syn.3 or Syn.4) classes will be recognized. Production of Syn.3 foundation seed requires the consent of the breeder. Breeder seed was produced under cage isolation at Woodland, CA. Sufficient foundation seed for the projected life ofthe variety will be maintained by VISTA. Stands of foundation and certified seed fields are limited to 3 and 6 years, respectively.
6. Certified seed will be marketed in 1991
7. No decision has been made concerning Plant Variety Protection.
8. This information can be forwarded
to the PVP office.