Ruccus
November 21,2000
1. Ruccus is a synthetic variety with 300 parental clones. Parent clones trace one population selected for resistance to phytophthora root rot, anthracnose, bacterial wilt, fusarium wilt, verticillium wilt, blue alfalfa aphid, spotted alfalfa aphid, pea aphid, stem nematode, and northern root knot nematode
Recurrent phenotypic selection was used. Final selections were made from two and three year old nurseries near Nampa, Idaho based on overall root and crown health
Parentage traces to experimental closely related to the variety Archer (80%), Lobo (10%), and Nemagone (10%). Breeder seed (Syn 1) was produced on cuttings of the parental clones near Nampa, Idaho, in 1993. Breeder seed was produced under field isolation.
Approx~mate germplasm source contributions are:
M. falcata (6%), Ladak (6%), M. varia (19%), Turkistan (13%), Flemish (30%), Chilean (96%), Peruvian(2%), Indian (2%), African (1%), Arabian (0%) and (12%) unknown sources
2. Ruccus appears to be adapted to and is intended for use in winterhardy Intermountain region of the US.
It has been tested in Idaho, and Washington.
3. Fall dormancy of Ruccus is similar to Dupuits. Flower color is approximately 88% purple and 12% variegated with a trace of cream, yellow and white.
4. Ruccus has high resistance to fusarium wilt, and phytophthora root rot; resistant to bacterial wilt, verticilliurn wilt, spotted alfalfa aphid, pea aphid, and stem nematode; moderate resistant to anthracnose (race 1), and northern root knot nematode; and low resistance to blue alfalfa aphid.
5. Seed increase is limited to one generation of breed" seed (Syn 1), two generations of foundation and two to three generations of certified seed. 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. Breeder seed was produced in 1993. ABI will maintain sufficient stocks for the projected life of the variety.
6. Certified seed will be available in 2001
7. Plant variety protection will not be applied for.
8. This information can be forwarded to the PVP office.
9. Variety Name: Ruccus Date submitted November 21,2000
Experimental designations: ZX 9353, ABI 9353