1. Clipper is a 59-clone
synthetic variety. Parental clones were selected, following 3-5 cycles
of field selection for resistance to Verticillium wilt, from populations
which had previously been screened for winter survival and resistance to
Phytophthora root rot,
anthracnose, bacterial wilt
and Fusarium wilt. Parentage traces to Apollo (26%), Endure, Atlas, Armor,
Thunder, Titan, Vernal, Weevlchek, Spredor, G 77309, Answer, DK 120, Baker,
Riley, Marvinskaja 425 and Krasnodarskaja Ranniaja (5%, or less each).
Germplasm sources are M.falcata (9%), Ladak (9%), M. varia
(21%), Turkistan (22%), Flemish (30%), Chilean (5%) and Peruvian (4%).
2. Clipper is intended for use in the northern region of the U.S. for hay, haylage, greenchop or dehy production. It has been tested in Iowa, Idaho, Wisconsin, and Illinois.
3. Fall dormancy is similar to Vernal. Flower color is approximately 68% purple and 32% variegated, with less than 1% cream and yellow.
4. Clipper has high resistance to bacterial wilt and Fusarium wilt; resistance to Phytophthora root rot, anthracnose, Verticillium wilt, pea aphid and downy mildew; moderate resistance to stem nematode. Reaction to spotted alfalfa aphid and blue alfalfa aphid has not been determined.
5. Breeder (Syn 2) seed was produced
from Syn 1 near Nampa,, Idaho, with a sufficient quantity for the expected
life of the variety held in controlled storage. Two years production was
bulked. Seed increase is limited to one generation each of breeder, foundation
and certified classes. Certified seed may be produced from either breeder
or
foundation classes. A 3 and
6-year stand life is permitted on fields producing foundation and certified
classes, respectively. Foundation seed production is limited to the northern
region of adaptation.
6. Certified seed will be available in 1988.
7. No decision regarding application for Plant Variety Protection has been made.
8. This information may be forwarded
to the PVP office.