Download Louisiana Horticulture Test Study Guide and more Exams Gardening and Horticulture in PDF only on Docsity! Louisiana Horticulture Test Study Guide Exam 59 Questions with Correct Answers. What is the difference between a cultivar and variety? - ANS Cultivar- A plant or grouping of plants selected for desirable characteristics that can be maintained by propagation Variety- A naturally occurring subgroup of a species which has some distinguishing characters Who is Linnaeus? What system of naming plants did he create? - ANS Linnaeus is a Swedish Botanist who developed the Binomial System of Nomenclature (Genus + Species) Why is it important to know common and scientific names of plants? - ANS So that you can communicate with others without confusion about the identity of a plant What are some origins of botanical names? - ANS Country of origin, Names of Explorers, and Descriptive Latin Terms What are some typical groupings for plants when they are classified by growth characteristics? - ANS Life Span, Leaf Retention, Growth Habits, Light, Size List the functions of a root system. - ANS Absorption, Anchorage, Conduction, Storage What are two kinds of root systems? - ANS Fibrous and Taproot List the functions of the stem of a plant. - ANS Support; Conduction; Storage Define xylem and phloem. - ANS xylem- the transport vessel for water and minerals from root to leaf Phloem- the transport vessel for manufactured food from leaf to stem What is the difference between monocots and dicots? - ANS monocots- plants that have a single seed leaf (corn; grass; lily) Dicots- plants that have two seed leaves (trees; shrubs; annuals) What are nodes and internodes? - ANS nodes- the area on stems where leaves emerge Internodes- the area on stems in between where leaves emerge List the types of specialized stems and roots commonly found in plants. - ANS Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots What are the two main functions of leaves? - ANS Photosynthesis and Transpiration Define angiosperms and gymnosperms. - ANS Angiosperms- plants that bloom and develop fruit which encloses the seed Gymnosperms- plants that have no true flowers or fruit, but make seeds in cones List the parts of a complete flower. - ANS Stamen (Anther & Filament) Pistil (Stigma; Style; Ovary) Petal Sepal Locale Ovule Placenta Receptacle Peduncle List the priority in which plant parts receive food manufactured by the leaves. - ANS 1) Flower 2) Seed 3) Leaves 4) Stems 5) Roots List three primary elements for essential plant growth. - ANS Carbon; Hydrogen; Oxygen List the three macronutrients essential for plant growth. - ANS Nitrogen; Phosphorus; Potassium List the seven Micronutrients needed for optimum plant growth. - ANS Boron; Copper; Chlorine; Iron; Manganese; Molybdenum; Zinc How is light intensity commonly measured? - ANS Foot Candles: The amount of light falling on one square foot one foot away from a standard candle List three functions of water in a plant. - ANS 1) Ingredient of Photosynthesis 2) Solvent for nutrients 3) Gives the plant tissue rigidity Define permanent wilting point. - ANS when all gravitational water and the available water are gone and only the givable water remains Define microclimate. - ANS describes areas with certain consistent variation in light, temperature, and moisture in a garden
