1. Trident II is a synthetic variety with 111 parent plants. Parent plants trace to populations selected for resistance to bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot, Aphanomyces and anthracnose using phenotypic recurrent selection. Parentage traces to the varieties Profit (45%), Clipper (39%) and a population closely related to Clipper (16%). Approximate germplasm source contributions are M. falcata (10%), Ladak (10%), M. varia (21%), Turkistan (17%), Flemish (35%), Chilean (4%), and Peruvian (3%).
2. Trident II is intended for use in the North Central and Northeastern U.S. for hay, haylage, greenchop and dehy production. It has been tested in Iowa, Wisconsin and Idaho.
3. Fall dormancy of Trident II is similar to Ranger. Flower color is approximately 76% purple, and 24% variegated with a trace of white, yellow and cream.
4. Trident II has high resistance to Phytophthora root rot and bacterial wilt, resistance to Verticillium wilt, anthracnose, and Fusarium wilt, moderate resistance to Aphanomyces and pea aphid and low resistance to spotted alfalfa aphid. Reaction to stem nematode, and blue alfalfa aphid has not been determined.
5. Seed increase is limited to one generation each of breeder, foundation and certified classes. Certified seed may be produced from either breeder or foundation classes. A 1, 3 and 6-year stand life is permitted on fields producing breeder, foundation and certified classes respectively. Foundation seed production is limited to the Pacific Northwest.
6. Certified seed will be available in 1990.
7. Plant Variety Protection will not be applied for.
8. This information can be forwarded to the PVP office.