Name: TMF 4464 Date Submitted: Nov. 1995

 
  1. TMF 4464 is a synthetic variety with 116 parent clones. Parent clones tract to 19 populations selected for resistance to the following pests: bacterial wilt, fusarium wilt, verticillium wilt, phytophthora root rot, anthracnose (race 1) and aphanomyces (race 1). Phenotypic recurrent selection was used. Final selections were made from two-year-old space-plant selection nurseries near Marshfield and Livingston, WI based on vigor, leafhopper yellowing resistance, leaf disease resistance, winter survival and fall dormancy reaction.

Parentage traces to Dominator (16%), AP 892W (13%), Cutter (11%), Northstar and AP 9836X (8% each), Trident II, Stine 9227, Aggressor and Garst 645 (6% each), Genesis (5%), Venture and AP 8935W (4% each), AP 8929 (3%), AP 8939 (2%), Dawn (1%) with 1% from several other sources. Breeder seed (Syn 1) was produced on cuttings of the parental clones near Nampa, ID in 1991. An equal number of cuttings (approx. 25) of each parental clone was transplanted at random into an isolated field and harvested in bulk.

The % of germplasm sources listed below contribute to the major genetic constitution of this variety.

M. falcata

  

Ladak

  

M. varia

  

Turkistan

  

Flemish

  

Chilean
                     

7

  

7

  

19

  

15

  

37

  

9
                     

Peruvian

  

Indian

  

African

  

Arabian

  

Unknown

    
                     

6

  

-

  

-

  

-

  

-

    

 

2. TMF 4464 appears to be adapted to and is intended for use in the North Central Region of the U.S.. It has been tested in IA, IL and WI.

3. Fall dormancy of TMF 4464 is similar to Saranac. Flower color is approximately 77% purple and 23% variegated with a trace of cream, white and yellow.

4. TMF 4464 has high resistance to bacterial wilt, verticillium wilt, fusarium wilt, anthracnose (race 1) and phytophthora root rot, resistance to aphanomyces (race 1) and pea aphid and moderate resistance to stem nematode. It has not been tested for reaction to spotted alfalfa aphid, blue alfalfa aphid and root knot nematode.

5. Seed increase is limited to one generation each of breeder (Syn 1), foundation (Syn 2) and certified (Syn 2 or 3) seed classes. Certified seed may be produced from either breeder or foundation classes. A 1,3 and 6 – year stand life is permitted on fields producing breeder, foundation and certified classes, respectively. Foundation seed production is limited to the Pacific Northwest. Breeder seed was produced in 1991. ABI will maintain sufficient seed stocks for the projected life of the variety.

6. Certified seed will be available in 1996.

7. Plant Variety Protection will not be applied for.

8. This information can be forwarded to the PVP office.

 

 

 

 

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