WL 310
1. WL 310 was developed by screening 1273 clones for stem nematode resistance. Sixteen percent of the resulting 175 selections trace to yield test selections from Minnesota and Illinois and 84% to retrievals from the Minnesota bacterial wilt test.
2. WL 310 was tested in Illinois, Nebraska, New Jersey, Missouri, Wisconsin, Oregon, Northern California, and Utah. It is adapted to the northern region of the United States west of the Ohio River. It is intended to be used for hay, soilage, and dehydration.
3. The flower color is approximately 80% purple, 15% variegated, 4% white and off white and 1% yellow. The growth habit is upright and moderately uniform. It is resistant to bacterial wilt, stem nematode and the spotted alfalfa aphid biotype(s) of Kern County, California.
4. Seed shall be increased on a three generation basis: breeder, foundation and certified. Breeder seed was produced by interpollinating 175 clones in isolation in Bakersfield, California. Foundation seed is produced from breeder seed between 38 and 44 latitude. Certified seed is produced from breeder or foundation seed.
5. Certified class seed will be available in 1975-76.
6. No.