1. Ripin is a 20 clone synthetic variety. One half of the parents were selected out of saturated soils near Marshfield, WI. Plants were selected for the branch rooted trait and excellent herbage growth. Source material trace back to 5373, 5472, 5364, Magnum III-Wet and Dairyland experimentals. The other half of the parents were selected for the sunken crown trait out of forage yield plots near Clinton, WI. This source material trace back to Answer and Dairyland experimentals. The percent of germplasm sources are: Ladak(2), M. varia(14), Turkistan(20), Flemish(40) and unknown(24).
2. Ripin is adapted to the North Central and East Central Region of the United States and intended for use in the upper half of the United States. The state where Ripin has been tested is: Wisconsin.
3. Ripin is a moderately dormant, fall dormancy 4 variety. Flower color in the Syn. 2 generation is 95% purple, 5% variegated with trace amount of cream, white and yellow. In poorly drained soils, Ripin expresses branch root tendencies.
4. Ripin has high resistance to bacterial wilt, Fusarium wilt, Phytophthora root rot; resistant to Verticillium wilt, pea aphid, Aphanomyces root rot(Race 1), northern root-knot nematode, stem nematode and anthracnose(Race 1). Its reaction to spotted alfalfa aphid, and blue alfalfa aphid has not been tested.
5. Syn.0 seed was produced from bulking seed of parent plants planted in isolation near Sloughhouse, CA in 1992. Breeder Seed(Syn.1) was produced from Syn. 0 seed and Foundation Seed(Syn.2) from Breeder Seed. Certified Seed(Syn.2or3) can be produced from either Breeder or Foundation Seed. One generation each of Breeder, Foundation and two generations of Certified Seed are recognized. A maximum of three years each are permitted on stands producing Breeder and Foundation with five years for Certified Seed. Sufficient Breeder Seed for the projected life of the variety will be maintained by Dairyland Research.
6. Certified Seed was available spring of 1998.
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: Ripin
Experimental designations: DS9454
Date NA&MLVRB first accepted this variety: January, 1998
Dates previous amendments were accepted:
Date this amendment was submitted: November 25, 1998