Download Louisiana Horticulture Exam Study Guide: 59 Questions with Answers and more Exams Gardening and Horticulture in PDF only on Docsity! Louisiana Horticulture Test Study Guide Exam 59 Questions with Correct Answers. 1. 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 2. Variety- A naturally occurring subgroup of a species which has some distinguishing characters 3. 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) 4. 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 5. What are some origins of botanical names? - ANS Country of origin, Names of Explorers, and Descriptive Latin Terms 6. What are some typical groupings for plants when they are classified by growth characteristics? - ANS Life Span, Leaf Retention, Growth Habits, Light, Size 7. List the functions of a root system. - ANS Absorption, Anchorage, Conduction, Storage 8. What are two kinds of root systems? - ANS Fibrous and Taproot 9. List the functions of the stem of a plant. - ANS Support; Conduction; Storage 10.Define xylem and phloem. - ANS xylem- the transport vessel for water and minerals from root to leaf 11.Phloem- the transport vessel for manufactured food from leaf to stem 12.What is the difference between monocots and dicots? - ANS monocots- plants that have a single seed leaf (corn; grass; lily) 13.Dicots- plants that have two seed leaves (trees; shrubs; annuals) 14.What are nodes and internodes? - ANS nodes- the area on stems where leaves emerge 15. Internodes- the area on stems in between where leaves emerge 16.List the types of specialized stems and roots commonly found in plants. - ANS Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots P a g e 1 | 5 17.What are the two main functions of leaves? - ANS Photosynthesis and Transpiration 18.Define angiosperms and gymnosperms. - ANS Angiosperms- plants that bloom and develop fruit which encloses the seed 19.Gymnosperms- plants that have no true flowers or fruit, but make seeds in cones 20.List the parts of a complete flower. - ANS Stamen (Anther & Filament) 21.Pistil (Stigma; Style; Ovary) 22.Petal 23.Sepal 24.Locale 25.Ovule 26.Placenta 27.Receptacle 28.Peduncle 29.List the priority in which plant parts receive food manufactured by the leaves. - ANS 1) Flower 30.2) Seed 31.3) Leaves 32.4) Stems 33.5) Roots 34.List three primary elements for essential plant growth. - ANS Carbon; Hydrogen; Oxygen 35.List the three macronutrients essential for plant growth. - ANS Nitrogen; Phosphorus; Potassium 36.List the seven Micronutrients needed for optimum plant growth. - ANS Boron; Copper; Chlorine; Iron; Manganese; Molybdenum; Zinc 37.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 38.List three functions of water in a plant. - ANS 1) Ingredient of Photosynthesis 39.2) Solvent for nutrients 40.3) Gives the plant tissue rigidity 41.Define permanent wilting point. - ANS when all gravitational water and the available water are gone and only the givable water remains 42.Define microclimate. - ANS describes areas with certain consistent variation in light, temperature, and moisture in a garden 43.List three ways heat travels. - ANS 1. Conduction 44.2. Convention P a g e 2 | 5
