1. ZG 9438 has 245 parent plants tracing to the variety 2444. 2444 was seeded into replicated plots at Eatonton, GA in Oct 1991. Plots were grazed continuously for approximately 150 days in 1992 and 1993. Plots were dug in October 1993 with the healthiest plants with large symmetrical crowns saved. Breeder seed (Syn 1) was produced in the greenhouse on the original 245 plants and harvested in bulk in the spring of1994. Additional breeder seed was produced in the field near Nampa, ID in 1994 from the original parent plants and approximately 20 cuttings of each clone transplanted at random and harvested in bulk. Estimated % germplasm sources contributing to the genetic constitution of this variety. Varia Turkistan Flemish Chilean 5 7 23 18 35 6 Peruvian Indian African Arabian Unknown 4 0 0 0 4
2. ZG 9438 appears to be adapted to and is intended for use in the North Central Region ofthe U. S. . It is intended for use as a grazing crop as well as for producing stored feed. It has been tested in Iowa, Illinois and Wisconsin
3. Fall dorrnancy of ZG 9438 is similar to Ranger. Flower color (Syn 2 generation is approximately 70% purple and 29% variegated with a trace of cream, white and yellow. Tolerance to intensive grazing is similar to Alfagraze.
4. ZG 9438 has high resistance to bacterial wilt, Fusarium wilt, Verticillium wilt and Phytophthora root rot, resistance to anthracnose (race 1), Aphanomyces (race 1), and moderate resistance to pea aphid and 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 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 1994. ABI will maintain sufficient seed stocks for the life of the variety.
6. Certified seed will be available in 1998
7. Plant Variety Protection will not be applied for.
8. This information can be forwarded to the PVP office.
9. Variety name: Date Submitted November 1997 Experimental designations:ZG9438.