1. Venture is a synthetic variety with 153 parent clones, Parent plants trace to 36 populations selected for resistance to the following pests: bacterial wilt, Fusanum wilt Verticillium wilt Phytophthora root rot. anthracnose and Aphanomvces. Phenotypic recurrent selection was used. Final selections were made from an Aphanomyces & Phytophthora root rot evaluation nursery near Marshlield. Wisconsin. based on winter injury. vigor and root development. Parentage and approximate contribution is Arrow (13%). Clipper (11%), NAPB 34 (9%), Impact (7%), Anchor, Armor and Thunder (6% each), Apollo and Spredor (4% each), Atlas. Titan. Iroquois and Indiana Syn C (30o) each, Endure, Profit, Vernal, Baker. Ky X-l. Ky Y-1 and 120 (2% each), Vangard, Olynipic. Weevichek. Maverick. Starmaster and WL 311 (lOo each) with 20o tracing to numerous other sources. Approximate germplasm source contributions are: N!. falcata(70o). Ladak (70o). N!. vans (20~o). Turkistan (21%). Flemish (380o). Chilean (30o) and Peruvian (40o).
2. Venture appears to be adapted to and is intended for use in the North Central U.S. It has been tested in Wisconsin and Iowa.
3. Fall dormancy of Venture is similar to Saranac. Flower color of Sn 2 generation is approximately 8 lOo purple and 19 varie2ated with a trace of cream. vhhite and yellow.
4. Venture has high resistance to bacterial wilt anthracnose (race 1) and pea aphid. resistance to Verticillium wilt. Fusarium wilt. Phytophthora root rot and Aphanomvces (race 1): and low resistance to stem nematode. Reaction to spotted alfalfa aphid. blue alfalfa and root knot neniatode has not been determined.
5. Seed increase is limited
to one generation each of breeder (Syri 1). foundation (Sii
2) and certified (Svn 3)
seed classes. Certified seed ma~ 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 classes respectively. Foundation seed
production is limited to the Pacific Northwest. Breeder seed w~s produced
in 1988. ABI will maintain sufficient seed stocks for the projected life
of the variety.
6. Certified seed ~~ill be available in 1993.
7. Plant Variety Protection will not be applied for.
8. This information can be
forwarded to the PVP office.