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CW 94022 |
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1. CW 94022 is a
synthetic variety with 200 parent plants that were selected sequentially
for multifoliolate leaf expression and for resistance to Phytophthora
root rot and Aphanomyces root rot (race 1). Parent plants were selected
from crosses between selections from three-year old Minnesota and
Wisconsin yield trials. Yield trial source varieties were derived from
various populations that were developed by phenotypic recurrent
selection for high relative feed value (using Near Infrared Reflectance
Spectroscopy), and for resistance to one or more of the following pests:
bacterial wilt, Fusarium Wilt, Verticillium wilt, Phytophthora
root rot, Aphanomyces root rot (race 1), anthracnose (race 1),
and Leptosphaerulina leafspot. Parentage of CW 94022 traces to the
following germplasm sources: 9429, Alliant, FQ 315, and miscellaneous
Cal/West Seeds breeding populations. Breeder seed was produced under
cage isolation near Woodland, California in 1999. Seed was bulk
harvested from all parent plants. 2. CW 94022 is
adapted to the North Central area of the U.S. and is intended for use in
the North Central. East Central, and Great Plains areas of the U.S. CW
94022 has been tested in Wisconsin, Iowa, and Minnesota. 3. CW 94022 is a moderately dormant variety with fall dormancy similar to FD class 4 check varieties. Flower color observed in the Syn. 2 generation is greater than 99% purple with a trace of variegated, white, cream, and yellow. 4. CW 94022 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 pea aphid and northern root knot nematode (Meloidogyne
hapla). Reaction to Verticillium wilt, spotted alfalfa
aphid, and blue alfalfa aphid has not been tested. 5. Seed increase of CW
94022 is on a limited generation basis with one generation of breeder
and two generations of the foundation and certified seed classes.
Breeder (Syn. l), 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 1999. 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. 6. Certified seed of CW
94022 will be available in 2003. 7. No decision bas been
made regarding Plant Variety Protection. 8. This information can
be forwarded to the PVP office. 9.
Variety Name: ____________________________
Date submitted: November
30, 2003. Experimental Designation: CW 94022 |