G-777
NORTHRUP, KING AND COMPANY, MINNEAPOLIS, MINNESOTA
1. Germplasm used in the development of G-777 traces directly to Cardinal. The recurrent parentages Cardinal with plants selected on the basis of tolerance to leafhopper yellowing and persistence under field conditions. The nonrecurrent parents were two S1 clones resistant to bacterial wilt selected from Cardinal in the bacterial wilt nursery. The two S1 clones were crossed to 50 Cardinal selections. This cross was evaluated in wilt trials and 55 plants selected and crossed to 34 Cardinal selections. This cross was evaluated and 133 plants selected for resistance to bacterial wilt and desirable agronomic characteristics. One hundred and fifteen plants were further selected from the 133 plants, intercrossed and the seed bulked. Increase of this intercross is the source of Breeder seed.
2. G-777 is considered primarily for use in hay production and was adapted to areas where Cardinal and other Flemish type alfalfas have performed satisfactorily. Area in which tested consist of Illinois, Iowa, Minnesota and Ohio.
3. Flower color predominantly purple to dark purple with remaining plants lighter purple to blue. Foliage is dark green with erect growth habit and moderately resistant to bacterial wilt.
4. G-777 shall be in the limited generation sequence with one generation each of Breeder, Foundation and Certified seed. Certified seed shall be the first generation increase if Breeder or Foundation seed. The production of Foundation seed will be limited to the States of Washington, Idaho, Utah and Northern Nevada.
5. 1973.