Atomic
1. Atomic is an 18 clone synthetic. Parent clones were selected out of forage yield plots and/or disease nurseries. These parent plants were progeny tested for one or more of the following traits: forage yield, stand persistence, forage quality, resistance to bacterial wilt, Fusarium wilt, Phytophthora root rot, anthracnose (Race 1), Verticillium wilt and Aphanomyces root rot (Race 1). The percent of germplasm sources are: M. varia (22), Turkistan (12), Flemish (31), Chilean (15) and Unknown (20).
2. Atomic is adapted to and intended for use in the North Central Region of the United States and Western Canada. The state and provinces where it has been tested are Wisconsin, United States; Alberta, Saskatchewan and Manitoba Canada.
3. Atomic is moderately dormant variety similar to the fall dormancy 4 check. Flower color in the Syn. 2 generation is 91% purple, 9% variegated with trace amounts of cream, white and yellow.
4. Atomic has high resistance to bacterial wilt, Fusarium wilt, Phytophthora root rot; resistance to stem nematode, northern root-knot nematode (M. hapla), Verticillium wilt, anthracnose (Race 1), pea aphid; moderate resistance to Aphanomyces root rot (Race 1). DS9315 has not been tested against spotted alfalfa aphid and blue alfalfa aphid.
5. Breeder seed (Syn. 1) was produced by bulking seed of parent plants which were grown in field isolation near Sloughhouse, CA in 1991-92. Seed from parental clones were equally bulked and seed lots from each year were kept separate. Foundation seed (Syn.2) was produced from Breeder seed and Certified seed (Syn. 2Or3) from either Breeder or Foundation seed. One generation each of Breeder, Foundation and two generations of Certified seed classes are recognized. A maximum of three harvest years each is permitted on stands producing Breeder and Foundation seed with five years for Certified seed. Dairyland Research International will maintain sufficient Breeder seed for the projected life of the variety
6. Certified Seed will be available fall of 2001.
7. Application for the Plant Variety Protection is undecided.
8. Information in the NAVRB application can be forwarded to the PVP office.
9. Variety name: Atomic Date Submitted November 28, 2000
Experimental designations: DS9315