ALFALFA

ARC

GLADIATOR

A-57

SX-10

ASSOCIATION OF OFFICIAL SEED CERTIFYING AGENCIES

December 1973

REPORT OF MEETING

NATIONAL CERTIFIED ALFALFA VARIETY REVIEW BOARD

December 11, 1973

Name Designation Breeder Applicant

ARC MSHp6F-An4W4 T.E. Devine Applied Plant Genetics

C.H. Hanson Research, Agricultural R.H. Ratcliff Research Service-USDA and

T.H. Busbice Maryland Agricultural

Research Center

Gladiator KO-2 Northrup King Northrup King & Co.

Alfalfa Research Minneapolis, Minnesota

Staff 55413

A-57 A-7 or Edgar H. Beyer The Embers Seed Company

FSRC A-7 St. Louis, Missouri 63157

SX-10 A-10 or Edgar H. Beyer The Sexauer Company

FSRC A-10 Brookings, South Dakota

57006

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1. A statement of the origin and the breeding procedures used in developing the variety.

2. Area of probable adaptation and primary purpose (hay, grazing, etc.) for which this variety will be used. Report states and areas within states where the variety has been tested, and proposed areas of recommendation and merchandising.

3. Information of value to field inspectors (such as uniformity, leaf, flower characteristics, etc.), physiological characteristics, obvious disease and insect reactions, and other identifying characteristics.

4.Procedure for maintaining stock seed, seed classes to be used, a statement as to the limitations of generations that may be certified and other requirements or limitations necessary to maintain varietal characteristics.

5.If this variety is accepted by official certifying agencies, when will certified seed first be offered for sale?

6.Will application be made for protection under certifications of the Plant Variety Protection Act?

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ARC

APPLIED PLANT GENETICS LABORATORY

ARS - USDA AND MARYLAND AGRICULTURAL

EXPERINENT STATION

1. Arc was developed by eight cycles of recurrent phenotypic selection. The first four cycles of selection were those of the variety TEAM. The fifth cycle was field selection of 120 plants for resistance to alfalfa weevil larval feeding damage. The sixth, seventh and eighth cycles were screened for anthracnose and bacterial wilt resistance. Seed produced from intercrossing plants selected in the final cycle was designated as Syn 1. Subsequent generations of such increase was designated Syn 2, Syn 3 and Syn 4.

Breeders seed is the first generation increase from the Syn 1 designation MSHp6F-An4W4 produced at Prosser, Washington.

2. Arc is adapted to a considerable part of North Carolina, Virginia, Maryland and Southeastern Pennsylvania.

3. Flower color is predominantly purple and blue with a low frequency of variegated blossoms,variable in growth habit, similar to Team in fall and winter dormancy and upright growth habit. This variety has high resistance to anthracnose and pea aphid, moderate resistance to bacterial wilt and is slightly more tolerant to alfalfa weevil larval feeding than Team.

4. Seed increase shall be in the limited generation sequence with one generation each of Breeder, Foundation and Certified Classes. Production of Foundation seed will be in the Central alfalfa region and in Idaho, Oregon and Washington.

5. Certified seed class limited quantity probably available Fall 1974.

6. No decision on Plant Variety Protection Act.

NORTHRUP KING & COMPANY

MINNEAPOLIS, MINNESOTA

1. Gladiator is a selection from the variety TEAM. One hundred twenty (120) wilt resistant plants were selected from a population of five thousand (5000). Selections were also based on other agronomic characteristics. Greenhouse selection for bacterial wilt, vigor and seed set reduced the number to seventy (70) plants.

Breeder seed is the Syn 1 generation from bulk seed produced from

the polycross by hand pollination of the selected seventy (70) plants.

2. The primary purpose of Gladiator is hay type usage. Probable area of adaptation is approximately the range of the Eastern alfalfa weevil, specifically Eastern Nebraska, Kansas, Oklahoma eastward to the Atlantic state and north through Southern Michigan, Pennsylvania and New York.

3. Flower color is wide range of purples with very small percentage of whites and yellows. Upright growth habit with fall and winter dormancy similar to the variety TEAM. Bacterial wilt resistance similar to Vernal, pea aphid and alfalfa weevil resistance similar to the variety TEAM and moderate resistance to stem nematodes.

4. Gladiator will be in the limited generation sequence of one generation each of Breeder, Foundation and Certified Classes. Certified seed is the first generation increase from Breeder or Foundation seed. Breeder seed is produced in the State of Washington, Foundation seed in Washington and Idaho, and Certified seed in Washington, Idaho, Nevada and Utah.

5. Certified seed class available in 1975.

6. Not planned for certification under provisions of the Plant Variety Protection Act.

THE EMBERS SEED COMPANY

P.O. Box 12286

ST. LOUIS, MISSOURI

1. A-57 is a seven clone synthetic. Six clones originated with Vernal and one traces to Ranger. These clones were hand crossed to produce the F1 progenies which were tested in Brookings, South Dakota. Based on the F1 performance selections were made and the Syn 1 seed produced in isolation in 1969 and 1970.

2. Tested in Illinois, Missouri, Iowa, Indiana, Minnesota, Kansas and North and South Dakota. Primarily for hay usage, the area of adaptation will be mainly in Illinois, Iowa, Missouri, Minnesota and parts of surrounding states.

3. Flower color is mostly purple with some yellow and white blossoms, generally uniform in regrowth, not as early fall dormant as Vernal and upright in growth habit.

A-5 has resistance to bacterial wilt and leafhopper yellowing resistance similar to Vernal and Kanza.

4. A-57 shall be in the limited generation sequence with one generation each of Breeder, Foundation and Certified Classes. Foundation seed production is limited to areas north of the 37th parallel.

5. Certified seed will be first available in 1973-1974.

6. Not planned for certification under provisions of the Plant Variety Protection Act.

SX-10

THE SEXAUER COMPANY

BROOKINGS, SOUTH DAKOTA

1. SX--l0 originated from selections that resisted heaving in plantings of Vernal and Ranger and crossed to Rambler selections. From 174 crosses 3000 F1 plants were screened for plant height, vigor, leafiness, crown width, leafhopper resistance and branching and lateral roots. Selections were then intercrossed. Seed from this population was planted in the nursery and 14 colonies selected for strong root system. Breeder seed is produced in isolation on cuttings from the 14 parental clones.

2. Tests were conducted in Illinois, Iowa, Missouri, Minnesota, Indiana, Kansas and North and South Dakota. Primary purpose is intended for hay and pasture usage. Areas of merchandising will be primarily in North and South Dakota, Iowa and Nebraska.

3. Flower color is predominantly purple with some yellow and white blossoms, regrowth after cutting and fall dormancy is generally uniform with fall dormancy similar to Vernal. This variety has a greater development of laterally branching roots. Tolerance to downy mildew and leafhopper yellowing.

4. SX-l0 shall be in the limited generation sequence with one generation each of Breeder, Foundation and Certified Classes. Certified seed is the first generation increase from Foundation or Breeder seed. Foundation seed will be produced north of the 37th parallel.

5. Certified seed will be first available in 1975.

6. Not planned for certification under the Plant Variety Protection Act.

Harry E. Gallaway

National Certified Alfalfa Variety Review

Board