1. ZC 9650 is a 85 clone synthetic cultivar. Parent clones trace to
39 populations selected for resistance to the following pests: bacterial
wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot, anthracnose
(race 1), stem nematode, lesion nematode and Aphanomyces root rot (race
1) plus two additional isolates. Phenotypic recurrent selection was used.
Final selections were made from two-year old space plant selection nurseries
near Larned, Kansas based on yield, winter survival, degree of leafhopper
yellowing and stunting, freedom from leaf diseases and fall dormancy reaction.
Breeder seed (Syn 1) was produced in 1996 on approximately 25 cuttings
of each clone transplanted at random and harvested in bulk Parentage
traces to Synergy, Allegro and AP 8841 (11% each), ABI 9022, ABI 9042,
ABI 9134, 2444, Apollo Supreme, ZX 9345B, ABI 8939, ABI 700, ABI 9042,
SuperCuts, TMF Generation and Depend +EV (5% each) with 7% from numerous
other sources. Estimated % germplasm sources contributing to the
genetic constitution of this variety.
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2. ZC 9650 appears to be adapted to the Great Plains and East Central regions of the U.S.. It is intended for use in the Great Plains and East Central regions of the U.S..
3. Fall dormancy of ZC 9650 is similar to Archer. Flower color of Syn 2 generation is approximately 76% purple and 24% variegated with a trace of cream, yellow and white.
4. ZC 9650 has high resistance to bacterial wilt, Verticillium wilt, Fusarium wilt, anthracnose (race 1) Phytophthora root rot and pea aphid, moderate resistance to spotted alfalfa aphid and low resistance to northern root knot nematode. It has not been tested for stem nematode, blue alfalfa aphid and Aphanomyces root rot resistance.
5. Seed increase is limited to one generation each of breeder (Syn 1), foundation (Syn 2) and certified (Syn 3) seed classes. Certified seed may be produced from either breeder or foundation classes. A 2, 3 and 6 year stand life is permitted on fields producing breeder, foundation and certified seed classes respectively. Foundation seed production is limited to the Pacific Northwest. Breeder seed was produced in 1996. ABI will maintain sufficient seed stocks for the life of the variety.
6. Certified seed will be available in 1999.
7. Plant Variety Protection will not be applied for.
8. This information can be forwarded to the PVP office.
9. Variety Name: Pawnee
Date Submitted: November 1998
Experimental designations: ZC 9650