82T46

1.   82T46 is a 180 clone synthetic variety derived from the strain cross of the variety Maxidor and a W-L experimental germplasm, both of which had been screened for resistance to Phytophthora root rot. Components of the W-L experimental germplasm had exhibited exceptional yield and persistence in field trials at Bakersfield, CA. Germplasm traces to Maxidor, NL 504, and WL 450. Approximate germplasm source contributions are: M. varia - 2%, Turkistan - 20%, Flemish - 2%, Chilean - 5%, Indian - 15%, and African - 56%.

2.   82T46 is a non-dormant variety intended for use in the southwestern U.S. for hay, haylage, greenchop, or dehydration production. It has been tested for forage yield in California.

3.   Fall dormancy is similar to Moapa 69. Flower color is 99% purple and 1% variegated. Midsummer and fall growth is erect.

4.   82T46 is a non-dormant variety that has high resistance to spotted alfalfa aphid, Fusarium wilt, and Phytophthora root rot resistance to pea aphid and blue alfalfa aphid moderate resistance to anthracnose, bacterial wilt, and stem nematode. Its reaction to Verticillium wilt has not been tested.

5.   Seed increase is on a limited generation basis with one generation of breeder and two generations each of foundation and certified seed classes. Breeder (Syn. 1), foundation (Syn. 2 or Syn. 3) and certified (Syn. 3 or Syn. 4) classes will be recognized. Production of Syn. 3 foundation seed requires the consent of the breeder. Breeder seed was produced under cage isolation at Bakersfield, CA. Sufficient foundation seed for the projected life of the variety will be maintained by W-L Research.

6.   Certified seed will be marketed in 1990.

7.   No decision has been made concerning Plant Variety Protection.

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