Spredor 2
1. Spredor 2 has 43 parent plants, of which seven were selected from varieties and the other 36 from eight experimental creeping rooted populations developed by selecting for wilt resistance, persistence, vigor and creeping rooted habit from 1959 to 1975. Final selection was based on creeping habit, vigor and seed set. Sources of germplasm include Travois, Spredor, Rambler, Drylander, Kane, Roamer, Vernal, Glacier and Cardinal. Equal amounts of hand pollinated seed from the 43 plants was bulked & intercrossed under isolation to produce Spredor 2.
2. Spredor 2 has been tested in Iowa, Minnesota, Wisconsin, Nebraska, Missouri, Tennessee, Montana and Washington. Primary use will be for grazing in permanent pastures or on rangeland, and for dryland hay production. Primary usage will be in Northern and Central regions of the U.S.
3. Spredor 2 is very fall dormant, more dormant than Vernal. Flower color is approximately 34% light purple, 12% medium dark purple, 15% dark purple, 5% yellow and 34% variegated. At Washington, Iowa, under space planted conditions Spredor 2 has exhibited approximately 54% creeping plants in one year.
4. Spredor 2 has high resistance to bacterial wilt; low resistance to Fusarium wilt and pea aphid. It is susceptible to anthracnose and stem nematode. It has not been adequately tested to determine its resistance to Phytophthora root rot and spotted alfalfa aphid.
5. Seed classes will be breeder, foundation and certified. Adequate breeder seed (Syn 2) has been produced to last the expected life of the variety. Limitation on age of stand for production of each class will be two, three and five years for breeder, foundation and certified respectively.
6. Certified seed will be available in 1981.
7. Application will be made for Plant Variety Protection.