Title: Descriptions of types of principal American varieties of onions /
Authors: Magruder, Roy, 1900-; United States.
Publisher: U.S. Dept. of Agriculture,
Year: 1941
Subjects: Onions Varieties United States.
Abstract: This publication is the seventh of a series dealing with descriptions of types of the principle varieties of vegetables grown in the United States. It is published in response to the needs of seedsmen, produce merchants, vegetable canners, and growers for an adequate, accurate, and generally accepted description of varietal characteristics.
Contents: Introduction. pp. 1 -- Object of the results of type studies -- Supplemental varietal descriptions contemplated. pp. 2 -- Mehtods of procedure. pp. 3 -- Important considerations in comparing onion varieties or strains with type descriptions or standards. pp. 4 -- Influence of environment on varietal characters. pp. 5 -- Developmental history of shape in the onion. pp. 10 -- Distinguishing varietal characteristics. pp. 11 -- Classification of principal varieties of onions. pp. 12 -- Literature cited. pp. 84 -- Index to varietal names. pp. 86.