1. ZX 9391 is a synthetic variety with 300 parent clones. Parent clones trace to three populations selected for resistance to verticillium wilt, anthracnose (Race 1), spotted alfalfa aphid, blue alfalfa aphid and pea aphid. Recurrent phenotypic selection was used Final selections were made from a space planted nursery near Kingsburg California. Parentage traces to UC Cibola (40%), WL 605 (40%), and Cuf 101 (20%). Approximate germplasm source contnbutions are M.falcata (1%), Ladak (1%), M.varia (2%), Turkistan(11%), Flemish(1%), Chilean(6%), Peruvian(2%), Indian (20%), and African (52%), Arabian ( 1%) and unknown (3%). Breeder seed (Syn 1) was produced under field isolations near Nampa, Idaho 1993.
2. ZX 9391 is intended for use in central and southern California and the lower elevations of Arizona and New Mexico. This variety has been tested in California and Arizona.
3. Fall dormancy of is similar to Cuf 101. Flower color is approximately 99% purple with a trace of variegated cream, white and yellow.
4. ZX 939I has high resistance to fusarium wilt, spotted alfalfa aphid, and southern root knot nematode: resistance to anthracnose (Race 1), phytophthora root rot, and blue alfalfa aphid; Moderate resistance to verticillium wilt, pea aphid; and low resistance to bacterial wilt, and stem nematode. Aphanomyces root rot has not been tested.
5. Seed increase is limited to one generation each of breeder (Syn 1), foundation (Syn 2) and certified (Syn 3)seed 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, outside the area of adaption, is limited to single-season production (non-overwintering). Second year of production may be allowed with inspection and approval by breeder prior to second year production. 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 1997
7. Plant variety protection will not be applied for.
8. This information can be forwarded to the PVP office
9. Variety Name Date submitted November 19, 1996 Experimental
designations ZX 9391 ABI 9391