PDF Notes: AGR 201

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    What is taxonomy?

    The science of identifying and classifying plants.

    Why is a universal nomenclature needed?

    To ensure consistent communication across cultures about plant names.

    What defines binomial nomenclature?

    A two-part naming system for plants, including genus and species.

    How does a species differ from a genus?

    Species is a specific group within a genus, representing individual organisms.

    What is the highest taxonomic category?

    Kingdom.

    What distinguishes a family in taxonomy?

    It groups related plants above the genus and below the order.

    What are the two main categories of plants in the Kingdom Plantae?

    Bryophytes and vascular plants.

    What is a cultivar?

    A plant variant developed through breeding, maintained under human supervision.

    How do annuals differ from biennials?

    Annuals complete their life cycle in one season, while biennials take two.

    What characterizes a perennial plant?

    It lives for multiple years without needing to be replanted.

    What is a drupe?

    A fleshy fruit with a hard inner layer, containing one seed.

    What is the difference between dehiscent and indehiscent fruits?

    Dehiscent fruits split open to release seeds; indehiscent fruits do not.

    What defines a herbaceous plant?

    A plant with soft, nonwoody stems.

    What is the role of flowers in plant classification?

    They provide stable characteristics for identifying plant families.

    What is the significance of the USDA Plant Hardiness Zone map?

    It classifies plants based on their adaptability to climate conditions.

    What is the difference between deciduous and evergreen plants?

    Deciduous plants shed leaves seasonally; evergreens retain leaves year-round.

    What is a biennial plant?

    A plant that grows vegetatively in the first year and flowers in the second.

    What is the function of a windbreak in gardening?

    To protect plants from strong winds and reduce stress.

    What is a pome?

    A fruit with a fleshy outer layer and a core containing seeds.

    What distinguishes a shrub from a tree?

    Shrubs have multiple stems and no main trunk; trees have one main trunk.

    What is taxonomy?

    The science of identifying and classifying plants.

    Why is a universal nomenclature needed?

    To ensure consistent communication across cultures about plant names.

    What defines binomial nomenclature?

    A two-part naming system for plants, including genus and species.

    How does a species differ from a genus?

    Species is a specific group within a genus, representing individual organisms.

    What is the highest taxonomic category?

    Kingdom.

    What distinguishes a family in taxonomy?

    It groups related plants above the genus and below the order.

    What are the two major categories of plants in the Kingdom Plantae?

    Bryophytes and vascular plants.

    What is a cultivar?

    A plant variant developed through human cultivation.

    How do annuals differ from biennials?

    Annuals complete their life cycle in one season; biennials take two.

    What characterizes a perennial plant?

    It lives for multiple years without replanting.

    What is the difference between deciduous and evergreen plants?

    Deciduous plants shed leaves seasonally; evergreens retain them year-round.

    What is a drupe?

    A fleshy fruit with a hard stone containing a seed.

    What defines a berry?

    A fruit with multiple seeds and fleshy pulp.

    What is the role of flowers in plant classification?

    They provide stable characteristics for identifying plant families.

    What is the significance of the International Code of Botanical Nomenclature?

    It standardizes the naming of plants based on scientific rules.

    What is the difference between a variety and a cultivar?

    Varieties occur naturally; cultivars are bred by humans.

    What are the four general groups based on growth cycle?

    Annuals, biennials, perennials, and monocarps.

    What is a monocarps?

    Plants that flower once and then die.

    What are the three classes of horticultural plants based on stem type?

    Herbs, shrubs, and trees.

    What is the difference between erect and creeping stems?

    Erect stems stand upright; creeping stems grow along the ground.

    What is a fleshy fruit?

    A fruit that is juicy and soft at maturity.

    What is the classification of vegetables based on?

    Life cycle, edible parts, and botanical features.

    What are the two types of dry fruits?

    Dehiscent and indehiscent fruits.

    What is the purpose of a windbreak in gardening?

    To protect plants from strong winds.

    What is the USDA Plant Hardiness Zone map used for?

    To classify plants based on their adaptability to climate.