1. XAE05 is a synthetic variety comprised of 1,000 plants originating from experimental lines tracing to Vernal, N.S. 47, A224, A604, C--6, N.S. 31, ScMa 601, Culver, and other germplasm of unknown origin. Parent plants were randomly selected from an experimental whose parents were selected through phenotypic recurrent selection from various experimental lines for one or more of the following: spreading growth habit, above average top growth, field appearance and resistance to spotted alfalfa aphid and bacterial wilt. Germplasm sources are: M. falcata (40%), Ladak (5%), M. varia (13%), Turkistan (1%), Chilean (4%) and unknown (37%).
2. XAEO5 is adapted to and intended for use in the north central region of the United States and south central and south western regions of Canada for hay, haylage, greenchop and dehydration. XAEO5 has been tested in Iowa; Minnesota; Alberta, Canada; British Columbia, Canada; Manitoba, Canada; Saskatchewan, Canada; Ontario, Canada.
3. XAEO5 is a dormant cultivar with fall dormancy similar to Norseman. Flower color of the Syn 2 generation is approximately 59% purple, 40% variegated, 1% yellow, and a trace of white and cream. Growth habit is erect in midsummer and prostrate in the fall.
4. XAEO5 has resistance to bacterial wilt, Fusarium wilt, and spotted alfalfa aphid; moderate resistance to stem nematode and low resistance to pea aphid. XAEO5 is susceptible to Anthracnose (race 1) and verticillium wilt, and has not been tested for Phytophthora root rot or blue aphid.
5. Breeder seed (Syn 2) was produced
on parent plants in field isolation and bulked. Seed classes will be breeder,
foundation (Syn 3 or Syn 4) and certified (Syn 3, Syn 4, or 5yn 5). Foundation
seed may be produced from breeder or foundation. The second generation
foundation may be produced at
the discretion of Pioneer Hi--Bred International, Inc. Limitation on ages
of stand will be three and five years, respectively for foundation and
certified seed. Sufficient breeder and foundation seed for the projected
life of the variety will be maintained by Pioneer Hi--Bred International,
Inc.
6. Seed will be marketed in the spring of 1993.
7. Application for Plant Variety Protection will be made and the certification option will not be requested.
8. As a means of added varietal protection, information included with the Application for Review of Alfalfa Variety for Certification may be provided to the PVP office.