1. FG 4R37 is a synthetic variety with 100 parent plants. Parents were selected for potato leafhopper resistance in greenhouse tests from the varieties Trailblazer (58%), Arrest (29%) and DK121HG (13%). Phenotypic selection was used in the development of this variety. Breeder seed (Syn 2) was produced near Nampa, ID in 1996, harvested in total from all parent plants and bulked. Approximate germplasm source contributions are: M. falcata (4%), Ladak (4%), M. varia (22%), Turkistan (4%), Flemish (55%), Chilean (2%) and Unknown (9%).

2. This variety is adapted to the North Central and East Central United States and intended for use in the North Central and East Central United States. It has been tested in Wisconsin, Illinois and Minnesota.

3. Fall dormancy of this variety is similar to the FD3 checks and winter survival of this variety is similar to WS3 checks. Flower color in the Syn3 is 63% purple and 37% variegated, with a trace of cream, white, and yellow.

4. This variety has high resistance to anthracnose (Race 1), bacterial wilt, Fusarium wilt, and Phytophthora root rot; and resistance to Verticillium wilt, stem nematode, pea aphid, potato leafhopper and Aphanomyces root rot (Race 1). Reaction to blue alfalfa aphid, spotted alfalfa aphid and root knot nematode 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 (Syn2), foundation (Syn3), and certified (Syn4) classes will be recognized. Breeder seed was produced near Nampa, Idaho in 1996. 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 5 years, respectively.

7. No decision has been made concerning Plant Variety Protection Act.

8. The information in this application can not be forwarded to the Plant Variety Protection office.

9. Variety Name: Date Submitted 11/1/98

Experimental designations: FG 4R37