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註釋V. 1. Importance and characteristics of seeds. Development of gymnosperm seeds. Development angiosperm seeds. Anatomical mechanisms of seed dispersal. Seed germination and morphogenesis. Seed and seedling vigor.V.2. Enviromental control of seed germination. Metabolism of germination seeds. Seed dormancy. Physiological and biochemical deterioration of seeds. Seed pathology. V. 3. Insects and seed production. Seed collecting and identification. Seed storage and longevity. Insects attacking seed during storage. Essentials of seed testing. Seed certification.