SPUR
1. Spur is a synthetic variety with 10 parent clones. Parents were selected based on clonal and/or polycross progeny tests for forage yield, forage quality, fall dormancy reaction, persistence, pest resistance and multifoliolate leaf expression from several breeding populations previously selected for resistance to one or more ofthe following pests: bacterial wilt, Fusarium wilt, Verticillium wilt, anthracnose (race 1), Phytophthora root rot, Aphanomyces root rot (Race 1) and spotted alfalfa aphid. A combination of genotypic and phenotypic recurrent selection was used in the development of this variety. The parental populations from which all clones were derived trace to the following cultivars: Encore (20%), Prism (20%), Alfaleaf (20%), DK 133 (150/6), Achieva (15%), and Pacesetter (10%). Approximate germplasm. source contributions are: M. faicata (5%), Ladak (5%), M. varia (27%), Turkistan (3%), Flemish (57%), and Chilean (3%).
2. Spur is adapted to the north central and east central regions of the U.S. and intended for use in the northern and central U.S. It has been tested in Wisconsin, Minnesota, Iowa, and Pennsylvania.
3. Fall dormancy of Spur is similar to FD4 checks and winter survival of this variety is similar to WS2 checks. Flower color in the syn2 is 82% purple, 18% variegated, and a trace of white, cream and yellow. Spur has high multifoliolate leaf expression.
4. Spur has high resistance to bacterial wilt, anthracnose (race 1), Phytophthora root rot, pea aphid, and Fusarium wilt; and resistance to Aphanomyces root rot (race 1), Verticillim wilt, and spotted alfalfa aphid; and moderate resistance to northern root knot nematode and stem nematode. Reaction to blue alfalfa aphid has not been tested.
5. Seed increase is on a limited generation basis with one generation of breeder and two generations of foundation and certified seed classes. Breeder (syn1), foundation (syn2 or 3), and certified (syn3 or 4) classes will be recognized. Production of syn3 foundation seed requires the consent of the breeder. Breeder seed was produced at Caldwell, Idaho, in 1992. Sufficient foundation seed for the projected life of the variety will be maintained by Forage Genetics. Stands of foundation and certified seed fields are limited to three and six years, respectively.
6. Certified seed will be marketed in 1996.
7. No decision has been made concerning Plant Variety Protection
8. The information in this application can be forwarded to the PVP office.
9. Variety name: Spur
Experimental designations FG 3BO4
Date first accepted: January 1996
Date this amendment submitted: November 1, 1999