1. Clean Sweep 1000 is a synthetic variety with 10 parent plants. Parents were selected based on clonal and/or Px progeny tests for forage yield, forage quality, fall dormancy reaction, and pest resistance from several breeding populations previously selected for resistance to one of more of the following pests: bacterial wilt, Fusarium wilt, Verticillium wilt, anthracnose (Race 1), Phytophthora root rot, Aphanomyces root rot (Race 1), and potato leafhopper. 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 and germplasm releases: Rushmore (25%), Sterling (25%), Encore (13%), Pacesetter (12%), DK133 (12%), Legend (4%), and the germplasm releases 81IND-2, KS108GH5, and KS94GH6 (3% each). Approximate germplasm source contributions are: falcata-3%, Ladak-5%, M.varia-22%, Turkistan-4%, Flemish-55%, Chilean-2%, and unknown-9%.
2. Clean Sweep 1000 is adapted to the North Central and East Central regions of the U.S. and intended for use in the North Central and East Central U.S. It has been tested in Iowa, Wisconsin, Minnesota and Indiana
3. Fall dormancy of Clean Sweep 1000 is similar to the FD3 checks and winter survival of this variety is similar to the WS2 checks. Flower color (Syn2) is 51% purple, 39% variegated, 4% cream, 3% white and 3% yellow
4. Clean Sweep 1000 has high resistance to bacterial wilt, Fusarium wilt, anthracnose (Race 1) and Phytophthora root rot; resistance to Verticillium wilt, Aphanomyces root rot (Race 1), pea aphid and spotted alfalfa aphid; and moderate resistance to potato leafhopper. Reaction to stem nematode, root knot nematode and 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 o Syn4) will be recognized. Production of Syn3 foundation seed requires the consent of the breeder. Breeder seed was produced near Nampa, Idaho in 1995. Forage Genetics will maintain sufficient foundation seed for the projected life of the variety. Stands of foundation and certified seed fields are limited to 3 and 6 years, respectively.
6. Certified seed was marketed in 1997.
7. There has been no application for Plant Variety Protection.
8. The information in this application can not be forwarded to the PVP office.
9. Variety Name: Clean Sweep 1000 Date Submitted 11/1/97
Experimental designations: FG 4G07