1. Power 4.2 is adapted to the North Central and East Central areas of the U.S. and is intended for use in
the North Central, East Central, and Great Plains areas of the U.S. Power 4.2 has been tested in
Wisconsin, Minnesota, Illinois, Michigan, and Pennsylvania.
2. Power 4.2 is a dormant variety with fall dormancy similar to FD class 4 check varieties. Flower color
observed in the Syn.2 generation is approximately 100% purple with a trace of variegated, white, cream,
3. Power 4.2 has high resistance to anthracnose (race 1), bacterial wilt, Fusarium wilt, Phytophthora root
rot, Aphanomyces root rot (race 1), and stem nematode with resistance to Verticillium wilt, pea aphid,
spotted alfalfa aphid, and northern root knot nematode (Meloidogyne hapla). Reaction to blue alfalfa
aphid has not been adequately tested.
4. Seed increase of Power 4.2 is on a limited generation basis with one generation of breeder and two
generations of the foundation and certified seed classes. Breeder (Syn.1), foundation (Syn.2 or Syn.3),
and certified (Syn.3 or Syn.4) classes will be recognized. Production of Syn.3 foundation seed requires
consent of the breeder. Breeder seed was produced under cage isolation near Woodland, California in
1998. Sufficient foundation seed for the projected life of the variety will be maintained by Cal/West
Seeds. Stands of foundation and certified seed fields are limited to 3 and 6 years, respectively.
5. Certified seed of Power 4.2 will be available in 2003.
6. No decision has been made regarding Plant Variety Protection.
7. This information can be forwarded to the PVP office.
8. Variety Name: Power 4.2.
Experimental Designation: CW 84017, CW 83017
Date NA&MLVRB first accepted this variety: January 2003.
Date previous amendments were accepted: January 2004
Date this amendment submitted: November 30, 2005.