Apex
1. Thousands of plants of Flemish origin screened for bacterial wilt resistance in greenhouse. Clones showing evidence of resistance were further evaluated for wilt and pea aphid resistance, hardiness, Flemish vegetative traits, seed productivity, etc, in clonal, S1 and polycross progeny tests in Iowa, Illinois, Minnesota and Idaho from 1961-1965. Apex is a synthetic of 10 clones selected from this program.
2. Same areas as other Flemish varieties (Central Corn Be1t, Northeastern States, certain Mid-Atlantic areas) northern Idaho, eastern Canada, western Washington and Oregon, southern British Co1umbia, etc.) for forage use. Best suited for hay, green chop, wilted haylage and dehydration use. Will be merchandised primarily in above or neighboring areas where proven adapted.
3. Predominantly purplish to bluish flowers, reasonably uniform in vegetative traits (growth habit, leaf size, etc.). Fall growth habit similar to Alfa and Du Puits - reasonably good fall vigor. Winter dormancy like Alfa. Upright growing, fast recovering type like Alfa and Du Puits. High level of pea aphid resistance. Resistant to common leafspot. Pod color and shape similar to Alpha - relatively large pods, well curled. Somewhat resistant to bacterial wilt.
4. Will be increased on limited generation basis B Breeders seed (Syn1) from clones, foundation seed (Syn2) from fields established only with breeders seed, certified seed (Syn 2 or 3) from fields established only with breeders or foundation seed. Only Syn 2 and Syn 3 generations may be certified as Apex for merchandising purposes. Breeders seed produced under isolation with 700-1100 replicates of 10 parental clones at Caldwell, Idaho. Foundation seed shall be grown only in Columbia Basin of Washington. Certified seed to be grown primarily in Washington, Oregon and Idaho.
5. 1966.