What's new?
Michael Aberle receives R.S.T. certificate

The Registered Seed Technologist title is earned by ...

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A history of our company

On July 1, 1933, Elizabeth Ruth Ransom, “Betty”, opened the Ransom Seed Laboratory on Terminal Street
in Los Angeles, California. 

The lab offered seed testing services to the expanding south-western seed trade.

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The TZ Test
(PDF file - 1.2MB)

a presentation by
Aleta Meyr, R.S.T.
Ransom Seed Laboratory

Family Asteraceae:  Determination of the Pure Seed Unit

a presentation by
Sue Alvarez, R.S.T.
Ransom Seed Laboratory

Laboratory Evaluation


a presentation by
Aleta Meyr, R.S.T.
Ransom Seed Laboratory

Evaluation of Tetrazolium (TZ) Tests
on Small
Vegetable Seeds

A presentation by
Nancy Vivrette, RST, Ph.D.
Ransom Seed Laboratory

New in the Knowledgebase of Native Seeds
    Delphinium cardinale
Eremocarpus setigerus
Hemizonia fasciculata
Lepidium nitidum

Tetradymia glabrata
Trichostema lanatum
Verbena lasiostachys

Eleocharis macrostachya
Gnaphalium californicum
Helianthemum scoparium
Lasthenia californica
Pluchea odorata
Acamptopappus sphaerocephalus
Atriplex lentiformis
Bloomeria crocea
Chaenactis artemisiifolia

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