1. Ladak+ is a 100 clone synthetic variety. Parent plants were selected out of a 27-year-old stand of Ladak in eastern Washington. These plants were selected for visual herbage yield, seed yield, drought tolerance and root and crown health. Selected plants were hand pollinated in greenhouse near Sloughhouse, CA. Seed from hand crosses were bulked to produce Syn.1 as Breeder Seed inl998.
2. Ladak+ is adapted in the North Central region of the United States. It is intended for use in the North Central and Winterhardy Intermountain regions of the United States. The state in which it has been tested is Wisconsin.
3. Ladak+ is a dormant, fall dormancy 3 variety, similar to the fall dormancy 3 checks. Flower color in the Syn.2 generation is 88% purple, 9% variegated, 1% cream, 1% white, and 1% yellow.
4. Ladak+ has high resistance to bacterial wilt, Fusarium wilt and northern root-knot nematode (M. hapla); resistance to Phytophthora root rot and stem nematode; moderate resistance to pea aphid, Verticillium wilt and Aphanomyces root rot (Race l) and low resistance to anthracnose (Race 1 ); Its reaction to spotted alfalfa aphid and blue alfalfa aphid have not been tested.
5. Breeder seed (Syn. 1) was produced from hand-pollinated crosses made in greenhouse near Sloughhouse, CA in 1998. Foundation seed (Syn.2) was produced from Breeder seed and Certified seed (Syn.3) from Foundation seed. One generation each of Breeder, Foundation and Certified seed classes are recognized. A maximum of three years each is permitted on stands producing Breeder and Foundation seed with five years for Certified seed. Dairyland Research International will maintain sufficient Breeder seed for the projected life of the variety.
6. Certified seed will be available spring of 1999.
7. Application for Plant Variety Protection is anticipated.
8. Information in the NAVRB application can be forwarded to the PVP office.
9. Variety Name: Ladak+ Date submitted November 27, 2002
Experimental designations: DS9875