U.S. Department of Agriculture February 27, 1967

Crops Research Division, ARS

Beltsville, Maryland 20705



December 13, 1966

This is a supplemental report on the Review Board's meeting held December 13, 1966. It provides information on Fremont alfalfa on which the Board completed a favorable review subsequent to a report for that meeting issued December 30, 1966.


Variety designation

name during testing Breeder Applicant

Fremont W58 W.A. Riedi and Wyoming Agricultural

G.H. Starr Experiment Station, Laramie,Wyoming 83071.

Information pertinent to certifying agencies which was requested on the application and the information submitted by the applicant are given below. The applicant should be contacted it additional information is desired.

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

The parent clones were selected from approximately 200 clones screened for bacterial wilt resistance in the greenhouse from a large number of selections obtained from old alfalfa fields (over 25 years old) in Wyoming by G.H. Starr in 1938-39. Progeny evaluations were made in polycross and diallel tests.

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.

Tested in Wyoming, Nebraska, Iowa, Illinois, Indiana, Minnesota and Wisconsin. Probable area of adaptation - Wyoming, western Nebraska and areas with similar climatic conditions for hay.

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.

Approximately 80% purple flowers, 20% blue-green, erect growth, resistant to bacterial wilt. Winter hardiness is similar to that of Ranger.

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

Twenty-five pounds of breeder seed are on hand. This will be planted in 1967 to produce foundation seed. Certified seed will be produced from foundation seed. Seed generations beyond certified will not be called Fremont.

The Wyoming Agricultural Experiment Station will maintain the parent clones and produce the breeder seed. An equal number of plants of each clone will be placed in each crossing block in a manner to give each clone equal opportunity to be cross-pollinated with other clones in the block. The crossing will be accomplished either under field isolation or under cage. Seed from clones will be bulk harvested. The original breeder seed was produced in an isolated crossing block, with 30 plants of each clone per row and replicated 10 times in such a manner that each of the clones was grown along side of every other clone approximately 5 times. The plot was bulk harvested.

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

1968 or 1969.

C.H. Hanson, Chairman

National Certified Alfalfa

Variety Review Board

Members of the Board

E.L. Granstaff

Allenby White

I.J. Johnson

R.L. Davis

C.H. Hanson, Chairman (nonvoting)

Alternates of the Board

Robert Teweles

Golden L. Stoker

Robert Kalton

C.C. Lowe

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