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6530 |
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1. 6530 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) and lesion nematode. Phenotypic recurrent selection was used. Final selections were made from 2-3 year old space plant selection nurseries near Larned, Kansas; Napier, Iowa; and Marshfield, Wisconsin based on yield, winter survival, fall dormancy, leafhopper yellowing and leaf disease. Breeder seed (syn 1) was produced in 1999 near Nampa, Idaho on approximately 25 cuttings of each clone transplanted at random and harvested in bulk. 2. 6530 is adapted to the North Central, East Central and Great Plains Regions of the U.S. lt is intended for use in the North Central, East Central and Great Plains Regions of the U.S. It has been tested in Iowa, Wisconsin, Illinois and Kansas. 3. Fall dormancy of 6530 is similar to the FD 5 check. Flower color of syn 2 generation is approximately 77% purple and 23% variegated with a trace of white, cream and yellow. 4. 6530 has high resistance to bacterial wilt, Fusarium wilt, Verticillium wilt, anthracnose (race 1), Phytophthora root rot, Aphanomyces root rot (race 1) and pea aphid, resistance to stem nematode and root lesion nematode and moderate resistance to Aphanomyces root rot (race 2). It has not been evaluated for resistance to root knot nematode, spotted alfalfa aphid and blue alfalfa aphid. 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 1999. ABI will maintain sufficient seed stocks for the life of the variety. 6. Certified seed will be available in 2003. 7. Plant Variety Protection will not be applied for. 8. This information can be forwarded to the PVP office. 9. Variety Name: 6530 Date submitted November 21, 2002 Experimental designations: ZC 9953A *Results should be reported as: Test variety is similar to the FD check. Test variety is similar to the WS check |