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ABI 700 1. ABI 700 is a synthetic variety with 47 parent plants. Parent plants trace to populations selected for resistance to the following pests: bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot, anthracnose, blue alfalfa aphid, spotted alfalfa aphid, stem nematode and northern root knot nematode. Phenotypic recurrent selection was used. Final selections were made from 2 populations in a 3-year-old space-plant nursery near Nampa, Idaho, based on vigor, winter survival, color and degree of fall dormancy. Parentage traces predominantly to Diamond (50%), Oregon GXC (18%), Oregon GXE (18%), Apollo 11 (4%), Trident (3%), Endure (2%), Apollo, Maverick and Atlas (1% each), with 2% from numerous other sources. Approximate germplasm source contributions are: M. falcata (3%), Ladak (4%), M. varia (15%), Turkistan (18%), Flemish (26%), Chilean (7%), Peruvian (2%), Indian (3%), African (1%) and 21% from unknown sources. 2. ABI 700 is adapted to and intended for use in the areas of the Pacific Northwest and California where moderately dormant varieties are used for hay production. It has been tested in California and Idaho. 3. Fall dormancy of ABI 700 is similar to Lahontan. Flower color is approximately 89% purple and 11% variegated, with a trace of white, yellow and cream. 4. ABI 700 has high resistance to Fusarium wilt; spotted alfalfa aphid, blue alfalfa aphid, pea aphid and anthracnose (race 1); resistance to Phytophthora root rot, stem nematode and Southern root knot nematode; and moderate resistance to bacterial wilt, Verticillium wilt and Northern root knot nematode. 5. Seed increase is limited to one generation each of breeder, foundation and certified classes. Certified seed 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, respectively. Foundation seed production is limited to the San Joaquin Valley of California. 6. Certified seed will be available in 1991. 7. Plant Variety Protection will not be applied for. 8. This information may be forwarded to the PVP office.
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