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6200HT |
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1.
6200HT was selected for resistance to the following pests:
bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot,
anthracnose (race 1), Aphanomyces root rot (races 1 and 2), lesion
nematode, high stem digestibility, high stem protein and winter
survival. Phenotypic recurrent selection was used. Final selections were
made from 2-3 year old space plant selection nurseries near Napier,
Iowa, Livingston, Wisconsin and Marshfield, Wisconsin based on yield,
winter survival, fall dormancy, leafhopper yellowing and leaf disease. 2. 6200HT appears
to be adapted to the North Central Region of the U.S. It is intended for
use in the North Central Regions of the U.S. It has been tested in
Wisconsin, Iowa and Illinois. 3.
Fall dormancy of 6200HT is similar to the FD 2 check. Flower
color of Syn 2 generation is approximately 73% purple and 27% variegated
with traces of yellow, white and cream. 4.
6200HT has high resistance to bacterial wilt, Fusarium wilt,
Verticillium wilt, anthracnose (race 1), Phytophthora root rot and
Aphanomyces root rot (race 1) and pea aphid, resistance to Aphanomyces
root rot (race 2), moderate resistance to stem nematode and is
susceptible to spotted alfalfa aphid. It has not been evaluated for
resistance to blue alfalfa aphid and root knot nematode. 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 1998. ABI will maintain sufficient seed stocks for the life
of the variety. 6. Certified seed will be available in 2004. 7.
Plant Variety Protection will not be applied for. 8.
This information can be forwarded to the PVP office.
9.
Variety Name: 62OOHT
Date submitted: November 2003 Experimental
designations: ZN 9833 |