1. FK 421 was selected for tolerance to continuous grazing (two cycles of
recurrent phenotypic selection) by cattle while maintaining a healthy, large
crown and root system
2. FK 421 appears to be adapted to the North Central and
East Central Regions of the U.S.. It is intended for use in the North Central
and East Central Regions of the U.S. as a grazing crop as well as for producing
stored feed. It has been tested in Iowa, Wisconsin and Illinois.
3. The fall dormancy of FK 421 is similar to the FD 4 check. Flower color of syn
2 generation is approximately 68% purple and 32% variegated with a trace of
white, cream and yellow. Tolerance to continuous grazing is superior to
4. FK 421 has high resistance to bacterial wilt, Verticillium wilt, Fusarium
wilt, Phytophthora root rot, anthracnose (race 1), Aphanomyces root rot (race
1), resistance to pea aphid and moderate resistance to Aphanomyces root rot
(race 2). It has not been tested for reaction to stem nematode, root knot
nematode, spotted alfalfa aphid and blue alfalfa aphid.
5. Seed increase is limited to one generation each of breeder (syn 1),
foundation (syn 2) and certified (syn 3) seed classes. Certified seed (syn 2 or
3) may be produced from either breeder or foundation classes. A 1, 3 and 6 year
stand life is permitted on fields producing breeder, foundation and certified
seed classes respectively. Foundation seed production is limited to the Pacific
Northwest. Breeder seed was produced in 1999. ABI will maintain sufficient seed
stocks for the life of the variety.
6. Certified seed will be available in 2003.
7. Plant Variety Protection will not be applied for.
8. This information can be forwarded to the PVP office.
9. Variety Name FK 421 Date submitted November 21, 2002
Experimental designations: ZG 9942