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6310 1. 6310 is a synthetic variety with 15 parent plants.
Parents were selected based on clonal and/or polycross progeny tests for
forage yield, forage quality, fall dormancy reaction and pest resistance
from several breeding populations previously selected for resistance to
one or more of the following pests: bacterial wilt, Fusarium wilt,
Verticillium wilt, anthracnose (Race 1), Phytophthora root rot,
Aphanomyces root rot (Race 1) and potato leafhopper. A combination of
genotypic and phenotypic recurrent selection was used in the development
of this variety. The parental populations from which all clones were
derived trace to the following cultivars and germplasm releases:
Rushmore (30%), DK133 (18%), Sterling (15%), Pacesetter (12%), DK121HG
(10%), Legend (6%) and the germplasm releases- 81IND-2, KS108GH5, and
KS94GH6 (3% each). Registration of the germplasm release populations
were published in Crop Science. Breeder seed (Syn 1) was produced near
Nampa, ID in 1996, harvested in total from all parent plants and bulked.
Approximate germplasm source contributions are: M. falcata (3%),
Ladak (5%), M. varia (22%), Turkistan (4%), Flemish (55%),
Chilean (2%) and Unknown (9%). 2. This variety is adapted to the North Central United
States and intended for use in the North Central United States. It has
been tested in Wisconsin, Illinois and Minnesota. 3. Fall dormancy of this variety is similar to the FD3
checks and winter survival of this variety is similar to WS2 checks.
Flower color in the Syn2 is 60% purple and 40% variegated, with a trace
of cream, white, and yellow. 4. This variety has high resistance to anthracnose
(Race 1), bacterial wilt, Fusarium wilt, Phytophthora root rot and
potato leafhopper; resistance to Verticillium wilt, stem nematode, pea
aphid, and Aphanomyces root rot (Race 1). Reaction to blue alfalfa
aphid, spotted alfalfa aphid, and root knot nematode has not been
tested. 5. Seed increase is on a limited generation basis with
one generation of breeder and two generations of foundation and
certified seed classes. Breeder (Syn1), foundation (Syn2 or Syn3), and
certified (Syn3 or Syn4) classes will be recognized. Production of Syn3
foundation seed requires consent of the breeder. Breeder seed was
produced near Nampa, Idaho in 1996. Sufficient foundation seed for the
projected life of the variety will be maintained by Forage Genetics.
Stands of foundation and certified seed fields are limited to 3 and 5
years, respectively. 6. Certified seed will be marketed in
1999. 7. No decision has been made concerning Plant Variety
Protection Act. 8. The information in this application can not be
forwarded to the Plant Variety Protection office. 9. Variety Name: 6310 Date Submitted 11/1/98
Experimental designations: FG 3R22
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