WL-315
1. WL-315 is a 30-clone synthetic variety. Twenty-eight clones were selected in varying numbers from 9 experimental synthetics, the progeny of which had exhibited superior performance for either yield or resistance to various pests, and two vigorous, grassy-rooted clones. Major sources of germplasm were M. falcata (12%), Ladak (10%), M. varia (47%), Flemish (20%) and Chilean (8%). All selections were planted in an isolation cage and interpollinated with honeybees in 1977.
2. WL-315 is a moderately winter hardy variety adapted for use in the Midwestern and northeastern U.S. for hay, haylage, green chop or dehydration purposes. WL-315 has been tested in OH, IL and IA. It will be marketed in these and similar areas.
3. Approximately 80% of the flowers are purple, with 19% variegated and 1% yellow. Mid-summer growth is erect and fall dormancy is similar to Saranac.
4. WL-315 has high resistance to bacterial wilt, Fusarium wilt and pea aphid; moderate resistance to anthracnose, Phytophthora root rot, stem nematode, spotted alfalfa aphid, and tolerance to leafhopper yellowing. Resistance to the blue alfalfa aphid is low.
5. Breeder seed (Syn 1) was produced on the parent clones at Bakersfield, CA., in 1977. Foundation seed will be produced at Montrose, Colorado for the life of the variety, and reserve seed held in controlled storage. One generation each of breeder (Syn 1), foundation (Syn 2) and certified (Syn 2 or 3) seed classes is recognized. A maximum of three harvest years are permitted on stands producing foundation seed with five harvest years maximum on stands producing certified seed.
6. Certified seed will be marketed in 1981.
7. No plans have been made to apply for Plant Variety Protection.