WinterCrown
1. WinterCrown is a 51 clone synthetic variety. Twenty-six parent plants were selected from the variety MagnaGraze out of forage yield plots near Clinton, WI. Plants were selected for deep-set crowns, resistance to bacterial wilt, Fusarium wilt, crown health and herbage growth. Twenty-five parent plants were selected from the germplasm MNP-D1 (Syn. 2) out of disease nurseries. These parent plants were progeny tested for 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. falcata (10), Ladak (18), M. varia (l2), Turkistan (40), Flemish (20).
2. WinterCrown is adapted in the North Central Region of the United States and intended for use in the Northern half of the United States. The state where it has been tested is Wisconsin.
3. WinterCrown is a dormant, fall dormancy 3 variety. Flower color in the Syn. 2 generation is 82% purple, 17% variegated, 1% cream, 1% white and 1% yellow.
4. WinterCrown has high resistance to bacterial wilt, Fusarium wilt, Phytophthora root rot; resistance to anthracnose (Race 1), Aphanomyces root rot (Race 1), Verticillium wilt, pea aphid and moderate resistance to northern root-knot nematode (M. halpa) and stem nematode. It has not been tested for blue alfalfa aphid and spotted alfalfa aphid.
5. Breeder seed was produced from bulking seed of parent plants planted in field isolation to produce Syn. 1 seed near Sloughouse, CA in 1994. Foundation seed (Syn.2) was produced from Breeder seed and Certified seed (Syn. 3) from Foundation seed. One generation each of Breeder, Foundation and 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 was available spring of 1999.
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: WinterCrown
Experimental designations: DS9853
Date NA and MLVRB first accepted this variety November 25, 1998
Date previous amendments were accepted
Date this amendment was submitted November 28, 2000