WL5O1-R
WATERMAN-LOOMIS COMPANY, BAKERSFIELD, CALIFORNIA
1. WL5Ol-R was developed through mass selection of a population originally consisting of over 425,000 plants beginning in 1964 at Bakersfield, California. Selection was based on longevity, type, spotted alfalfa aphid resistance, freedom from foliage disease and root rotting organisms common to the area. The final population consisted of 1024 plants of which 250 plants were from Lahontan and Lahontan crosses, 155 plants from Sonora, 441 plants from preceding and advanced generations of WL504, 62 plants from N529 selfing and crosses and 116 plants tracing to nondormant, aphid resistant selections and/or crosses from Atlantic, Vernal and Saranac. These plants were planted at random in isolation and cross-pollinated to produce Breeder seed.
2. WL5O1-R is adapted to the Southwestern United States and has been tested in California, Arizona, Southern Utah, Southern Nevada, Southern New Mexico and Western Kansas. Its intended usage is for hay, silage and dehydration.
3. Flower color is predominately purple to light purple, moderately uniform in growth with about 5% of the plants being slightly more nondormant than the balance of the population in the winter months, resistant to the unknown local biotypes of the spotted alfalfa aphid in Kern County of California, moderately resistant to the pea aphid and tolerant to downy mildew, southern anthracnose and bacterial wilt.
4. Seed increase shall be in the limited generation sequence of one generation each of Breeder, Foundation and Certified seed classes.
Certified seed shall be the first generation increase of either Breeder or Foundation seed. Foundation seed is produced from Breeder seed in the San Joaquin Valley of California.
5. 1973-1974.
6. No.