1. Stamina is a synthetic variety with 100 parent plants. Parent plants were selected for multifoliolate expression and resistance to one or more of the following pests: Verticillium wilt, stem nematode, root knot nematode and Phytophthora root rot. Phenotypic recurrent selection was used in the development of this variety. Parent plants trace to the varieties LeafMaster, DK-133, Achieva, Benchmark, UN74, UN72,and Jewel. Approximate germplasm source contributions are: M.falcata (4%), Ladak (5%), M.varia, Turkistan (4%), Flemish (58%),and Chilean (3%).
2. This variety is adapted to the Winterhardy Intermountain U.S. This variety has been tested in Idaho and Washington and will be used in the Winterhardy Intermountain U.S.
3. This variety has fall dormancy similar to FD4 checks. Flower color (Syn2) is 83% purple and 17% variegated with a trace of yellow, cream and white. Stamina has high multifoliolate leaf expression.
4. This variety has high resistance to bacterial wilt, Fusarium wilt, anthracnose (race 1), Phytophthora root rot, spotted alfalfa aphid, northern root knot nematode, pea aphid and stem nematode; resistance to Verticillium wilt, Aphanomyces root rot (race l ). 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 (Synl), foundation (Syn2 or Syn3), and certified (Syn3 or Syn4) classes will be recognized. Production of Syn3 foundation seed requires consent of the breeder. Breeder seed was produced near Nampa, Idaho in 1994. 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 3 and 6 years, respectively.
6. Certified seed will be marketed in l997.
7. No decision has been made concerning Plant Variety Protection Act.
8. The information in this application can be forwarded to the PVP office.
9. Variety Name Stamina Date Submitted November 25, 1996
Experimental designations: FG 3T91
Page 12 of 12 (1996)