DS531
(Experimental Desig.)
1. DS531 is a fifteen clone synthetic variety. Parent clones were selected from forage yield plots and progeny tested for one or more of the following traits: Forage yield, stand persistence, winter hardiness, seed yield, and resistance to bacterial wilt, Phytophthora root rot, Fusarium wilt, anthracnose, Verticillium wilt, and spotted alfalfa aphid. Parental clones trace to DS308 (4), Magnum + (3), Durastan (3), MN germplasm release MNDI (2), Tewels Multistrain (2) and MSB-W4 (1). The percent of germplasm sources are M. falcata (15), Ladak (15), M. varia (10), Turkistan (20), Flemish (35), Chilean (5).
2. DS531 has been tested in Wisconsin and Minnesota. It will be marketed in the Midwest states (WI, IA, MI, MN, IL, etc.) The primary purpose will be for hay, green chop, and dehydration.
3. DS531 is a dormant variety similar to vernal. Flower color is 70% purple and 30% variegated with trace of white, yellow and cream. Growth habit is erect in midsummer and semi-erect in the fall.
4. This variety has resistance to anthracnose, bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot and spotted alfalfa aphid. It has not been tested for stem nematode, pea aphid or blue alfalfa aphid.
5. Breeder seed has been produced from cuttings of the parental clones in a cage as Syn. 1. Breeder seed (Syn. 1) was grown for the expected life of the variety and will be kept separate from year to year. Foundation seed will be produced from Breeder seed and Certified seed either from Breeder or Foundation seed. One generation each of Breeder, Foundation, and certified seed class is recognized. A maximum of three years each is permitted on stands producing Breeder and Foundation seed with five years for Certified seed.
6. Certified seed will be available in 1990.
7. Application for Plant Variety Protection is undecided.
8. This information may be turned over to the Plant Variety Protection office.