DSS5106
1. DSS5106 is a 16 clone synthetic variety. Parent clones were selected out of forage yield plotsand/or disease nurseries. These parent plants were progeny tested for one or more of thefollowing traits: forage yield, stand persistence, forage quality, maturity, resistance to bacterialwilt, Fusariurn wilt, Phytophthora root rot, anthracnose (race 1), Verticillium wilt, Aphanomyces root rot (race 1), and spotted alfalfa aphid. Parent plants trace back to Tempo, Apollo Supreme,Thor, WL312, Answer, Teweles Multistrain, and Dairyland Experimentals which trace back toRanger and Iroquois. Germplasm. sourcesare: Turkistan (32%), Flemish (40%) and Chilean(28%).
2. DSS5106 is adapted in the north central and Great Plains regions of the United States. It isintended for use in the north and central regionof the United States. The states in which it hasbeen tested are: Wisconsin,Nebraska, Kansas, and Oklahoma.
3. DSS5106 is moderately dormant, fall dormancy 4 variety. Flower color in the syn2 generationis 90% purple, 10% variegated, and trace amounts of cream, white, and yellow.
4. DSS5106 has high resistance to Phytophthora root rot, bacterial wilt, Fusarium wilt, northernroot-knot nematode (M. hapla); resistance to Verticillium wilt, pea aphid, anthracnose (race 1);moderate resistance to stem nematode and Aphanomyces root rot (race 1). Its reaction to spottedalfalfa aphid and blue alfalfa aphid have not been tested.
5. Breeder seed was produced from cuttings of the parent plants planted in cage isolation toproduce syn1 seed at Sloughhouse, California, in 1988-90. Seed was bulkedin equalproportions each year and lots were kept separate. Foundation seed (syn2)was produced from breeder seed and certified seed (syn2 or 3) from either breeder or foundationseed. One generation each of breeder and foundation, and two generations of certifiedseed classes arerecognized. A maximum of three harvest years each is permitted on standsproducingbreeder and foundation seed with five years for certified seed. Sufficientbreeder seed for the projected life of the variety will be maintained by Dairyland ResearchInternational.
6. Certified seed will be available spring of 1999.
7. Application for Plant Variety Protection is anticipated.
8. Information in this application = be forwarded to the PVP office.
9. Experimental designations: DSS5106
Date first accepted this variety: November 25, 1998
Date this amendment was submitted: November 29, 1999