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CW 09051 |
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1. CW 09051 is a
synthetic variety with 70 parent plants which were selected for lygus
tolerance and seed yield from space planted nurseries in California.
Parent plants were selected from various populations which were
developed by selecting for aphid resistance, drought tolerance, frost
tolerance, persistence and agronomic characteristics from space planted
nurseries and yield trials in Argentina. Parentage of CW 09051 traces to
miscellaneous Cal/West Seeds breeding populations (100%). Approximate
germplasm source contributions are as follows: M. varia (4%), Turkistan
(9%), Flemish (4%), Chilean (9%), Peruvian (4%), Indian (22%), and
African (48%). 2. CW 09051 is adapted
to and intended for use in the Southwest area of the U.S., Mexico, and
Argentina. CW 09051 bas been tested in California, Mexico, and
Argentina. 3. CW 09051 is a very
nondormant variety with fall dormancy similar to FD c1ass 9 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 09051 has high
resistance to anthracnose (race I), Fusarium wilt, Verticillium wilt,
Phytophthora root rot, pea aphid, blue alfalfa aphid, spotted alfalfa
aphid and stem nematode, with resistance to northern root knot nematode
(Meloidogyne hapla) and moderate resistance to bacterial wilt.
Reaction to Aphanomyces root rot (race 1) has not been adequately
tested. 5. Seed increase of CW
09051 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
open isolation near Merced, California in 2000. 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
09051 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 |