WL 512
1. WL 512 was developed from 1,321 plants selected for Phytophthora root rot resistance. The parentage of the selected plants demonstrated resistance to stem nematode, bacterial wilt, anthracnose, Phytophthora root rot and with longevity. The origin is as follows: 1,091 plants to generations preceeding and succeeding WL 504 and WL 508, 81 plants to WL 600, 62 plants to WL 450 and 87 plants to screened selections and crosses of Sonora, Lahontan, Saranac, Vernal, Atlantic, Nev. release N529, Univ. of Calif. clones UC M9 and UC A14.
2. The area of probable adaptation and merchandising will be the southwestern U.S. and similar regions for use as hay, silge and dehydration. This cultivar has been tested throughout California.
3. High resistance to: Spotted alfalfa aphid; moderate resistance to bacterial wilt, Phytophthora root rot and downy mildew; resistance to pea aphid. Reaction to stem nematode and anthracnose is not known at this time.
4. Seed is to be produced on a 3 generation basis: Breeder, foundation and certified. Sufficient breeder seed was produced and stored in environmentally control led storage for the life of the variety. Breeder seed (Syn I) was produced in Kern County, California. Foundation seed (Syn 2) is produced from breeder seed in the San Joaquin Valley of California. Certified seed is produced from breeder or foundation seed. No other class or generation will be recognized.
5. Certified seed will be available in 1976.
6. Application for Plant Variety Protection is not likely.