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TOP HAND |
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1. TOP HAND is a
synthetic variety with 225 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 Wisconsin nurseries.
Nursery source plants were selected 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 TOP
HAND traces to the following germplasm sources: Abound and miscellaneous
Cal/West Seeds breeding populations. Approximate germplasm source
contributions are as follows: M.
falcata (10%), Ladak (5%), M. varia (27%), Turkistan (4%), Flemish
(45%), and Chilean (9%). 2. TOP HAND is adapted
to and intended for use in the North Central, East Central, and Great
Plains areas of the U.S. TOP HAND bas been tested in Wisconsin, Iowa.
Michigan, Pennsylvania, and Nebraska. 3. TOP HAND is a
dormant variety with fall dormancy similar to FD class 3 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. TOP HAND has high
resistance to anthracnose (race 1), bacterial wilt, Fusarium wilt,
Verticillium wilt, and Aphanomyces root rot (race 1), with resistance to
Phytophthora root rot, pea aphid, spotted alfalfa aphid, and northern
root knot nematode (Meloidogyne hapla) and moderate
resistance to stem nematode. Reaction to the blue alfalfa aphid has not
been tested. 5. Seed increase of TOP
HAND 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 1997. 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
TOP HAND 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:
TOP HAND Date
submitted: November 30, 2003
Experimental Designation: CW 73038 Date submitted: November 30, 2003. |