Public domain
Salinas, California. Intercontinental Rubber Producers. Two-year-old guayule plants. At two years, the guayule contains about nine percent rubber of dry weight. To supply the emergency needs for rubber, these shrubs would have to be planted closer together if a two year harvest cycle were planned. R
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Credit lineSalinas, California. Intercontinental Rubber Producers. Two-year-old guayule plants. At two years, the guayule contains about nine percent rubber of dry weight. To supply the emergency needs for rubbe. 1941-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.