Part II.--Structure and Chemical Nature of the Seed Coat and its

Relation to Impermeable Seeds of Sweet Clover

By H. S. Coe, _formerly Assistant Agronomist, Office of

Forage-Crop Investigations_, and J. N. Martin, _Professor of

Morphology and Cytology, Iowa State College_.

CONTENTS

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Sweet-Clover Seed · 第 6 / 10 章