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6410 1. 6410 is a synthetic variety with 12 parent clones.
Parents were selected for forage yield, persistence, forage quality, rapid
recovery after cutting, and multifoliolate expression from two-and
three-year-old Wisconsin breeding nurseries. Parents trace to breeding
populations selected for multifoliolate expression and resistance to one
or more of the following pests: bacterial wilt, Fusarium wilt,
Phytophthora root rot, Aphanomyces root rot (Race 1), Verticillium wilt,
anthracnose (Race 1), Leptosphaerulina leaf spot, pea aphid and spotted
alfalfa aphid. Recurrent phenotypic selection was used. Germplasm sources
used in developing 6410 were: DK 127 (25%), Lightning (20%), LegenDairy
2.0 (15%), Rushmore (10%), Excalibur II (10%), 5262 (10%), Magnum III (5%)
and G2852 (5%). Syn1 was produced near Nampa, ID in 1995, harvested in
total and bulked to form breeder seed. Approximate germplasm source
contributions are: M. falcata (6%), Ladak (4%), M. varia
(32%), Turkistan (3%), Flemish (52%), and Chilean (3%). 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, Iowa and Minnesota. 3. Fall dormancy of this variety is similar to the FD4
checks and winter survival of this variety is similar to WS1 checks.
Flower color in the Syn2 is 79% purple and 21% variegated, with a trace of
cream, white, and yellow. 6410 has high multifoliolate leaf expression. 4. This variety has high resistance to anthracnose (Race
1), bacterial wilt, Fusarium wilt, Verticillium wilt, Aphanomyces root rot
(Race 1), and Phytophthora root rot; and resistance to pea aphid and
spotted alfalfa aphid. Reaction to blue alfalfa aphid, stem nematode 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 1995. 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: 6410 Date
Submitted 11/1/98 Experimental designations: FG
4G70 |