Louisiana Horticulture Exam study guide 2025
Latest Update 2024-2025 425 Questions and
100% Verified Correct Answers Guaranteed A+
________ is commonly added to acid soils to raise pH. - CORRECT ANSWER: Lime
________ is commonly added to alkaline soils to lower pH. - CORRECT ANSWER:
Sulpher
Acid loving ornamental plants prefer a soil pH of _________. - CORRECT ANSWER:
5.0 - 5.5
Are pruning paints recommended to promote wound healing on trees? - CORRECT
ANSWER:
Define angiosperms and gymnosperms. - CORRECT ANSWER: 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
Define footcandle. What are ideal daytime and nighttime temperatures for most house
plants? - CORRECT ANSWER: Foot Candles: The amount of light falling on one square
foot one foot away from a standard candle
Daytime- 70 to 80 degrees
Nighttime- 60 to 65 degrees
Define grafting. - CORRECT ANSWER:
,Define microclimate. - CORRECT ANSWER: describes areas with certain consistent
variation in light, temperature, and moisture in a garden
Define permanent wilting point. - CORRECT ANSWER: when all gravitational water and
the available water are gone and only the graivable water remains
Define soil structure. - CORRECT ANSWER: the way various particles are arranged
determine soil structures(sandy or clay soils)
Define soil texture. - CORRECT ANSWER: determined by the relative proportion of its
mineral particles and is classified as sand, silt, and clay
Define thinning out and heading back. - CORRECT ANSWER:
Define xylem and phloem. - CORRECT ANSWER: xylem- the transport vessel for water
and minerals from root to leaf
phloem- the transport vessel for manufactured food from leaf to stem
Describe pruning procedures recommended for nandina and mahona. - CORRECT
ANSWER:
How is light intensity commonly measured? - CORRECT ANSWER: Foot Candles: The
amount of light falling on one square foot one foot away from a standard candle
List five factors that affect interior plant growth. - CORRECT ANSWER: Light;
Temperature; Water; Fertilizer; Media
List some examples of ways to vegetatively propagate a plant. - CORRECT ANSWER:
Layering; division; separation
,List the four physiological changes in the reproductive phase of sexual propagation. -
CORRECT ANSWER: 1. Cone Bud Induction
2. Flower and Bud Initiation and Development
3. Flower
4. Fruit and Seed Production
List the functions of a root system. - CORRECT ANSWER: Absorption, Anchorage,
Conduction, Storage
List the functions of the stem of a plant. - CORRECT ANSWER: Support; Conduction;
Storage
List the parts of a complete flower. - CORRECT ANSWER: Stamen(Anther & Filament)
Pistil(Stilma; Style; Ovary)
Petal
Sepal
Locule
Ovule
Placenta
Receptacle
Peduncle
List the priority in which plant parts receive food manufactured by the leaves. -
CORRECT ANSWER: 1)Flower
2)Seed
3)Leaves
4)Stems
, 5)Roots
List the seven Micronutrients needed for optimum plant growth. - CORRECT ANSWER:
Boron; Copper; Chlorine; Iron; Manganese; Molybdenum; Zinc
List the three macronutrients essential for plant growth. - CORRECT ANSWER:
Nitrogen; Phosphorus; Potassium
List the types of specialized stems and roots commonly found in plants. - CORRECT
ANSWER: Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots
List three functions of water in a plant. - CORRECT ANSWER: 1)Ingredient of
Photosynthesis
2)Solvent for nutrients
3)Gives the plant tissue rigidity
List three primary elements for essential plant growth. - CORRECT ANSWER: Carbon;
Hydrogen; Oxygen
List three ways heat travels. - CORRECT ANSWER: 1. Conduction
2. Convention
3. Radiation
Most ornamental plants prefer a soil pH of ________. - CORRECT ANSWER: 5.5 - 7.0
Should organic amendments be added to a planting hole when planting an individual
tree? - CORRECT ANSWER: Research has shown that amendments do not
significantly enhance the growth of ornamental plants
Latest Update 2024-2025 425 Questions and
100% Verified Correct Answers Guaranteed A+
________ is commonly added to acid soils to raise pH. - CORRECT ANSWER: Lime
________ is commonly added to alkaline soils to lower pH. - CORRECT ANSWER:
Sulpher
Acid loving ornamental plants prefer a soil pH of _________. - CORRECT ANSWER:
5.0 - 5.5
Are pruning paints recommended to promote wound healing on trees? - CORRECT
ANSWER:
Define angiosperms and gymnosperms. - CORRECT ANSWER: 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
Define footcandle. What are ideal daytime and nighttime temperatures for most house
plants? - CORRECT ANSWER: Foot Candles: The amount of light falling on one square
foot one foot away from a standard candle
Daytime- 70 to 80 degrees
Nighttime- 60 to 65 degrees
Define grafting. - CORRECT ANSWER:
,Define microclimate. - CORRECT ANSWER: describes areas with certain consistent
variation in light, temperature, and moisture in a garden
Define permanent wilting point. - CORRECT ANSWER: when all gravitational water and
the available water are gone and only the graivable water remains
Define soil structure. - CORRECT ANSWER: the way various particles are arranged
determine soil structures(sandy or clay soils)
Define soil texture. - CORRECT ANSWER: determined by the relative proportion of its
mineral particles and is classified as sand, silt, and clay
Define thinning out and heading back. - CORRECT ANSWER:
Define xylem and phloem. - CORRECT ANSWER: xylem- the transport vessel for water
and minerals from root to leaf
phloem- the transport vessel for manufactured food from leaf to stem
Describe pruning procedures recommended for nandina and mahona. - CORRECT
ANSWER:
How is light intensity commonly measured? - CORRECT ANSWER: Foot Candles: The
amount of light falling on one square foot one foot away from a standard candle
List five factors that affect interior plant growth. - CORRECT ANSWER: Light;
Temperature; Water; Fertilizer; Media
List some examples of ways to vegetatively propagate a plant. - CORRECT ANSWER:
Layering; division; separation
,List the four physiological changes in the reproductive phase of sexual propagation. -
CORRECT ANSWER: 1. Cone Bud Induction
2. Flower and Bud Initiation and Development
3. Flower
4. Fruit and Seed Production
List the functions of a root system. - CORRECT ANSWER: Absorption, Anchorage,
Conduction, Storage
List the functions of the stem of a plant. - CORRECT ANSWER: Support; Conduction;
Storage
List the parts of a complete flower. - CORRECT ANSWER: Stamen(Anther & Filament)
Pistil(Stilma; Style; Ovary)
Petal
Sepal
Locule
Ovule
Placenta
Receptacle
Peduncle
List the priority in which plant parts receive food manufactured by the leaves. -
CORRECT ANSWER: 1)Flower
2)Seed
3)Leaves
4)Stems
, 5)Roots
List the seven Micronutrients needed for optimum plant growth. - CORRECT ANSWER:
Boron; Copper; Chlorine; Iron; Manganese; Molybdenum; Zinc
List the three macronutrients essential for plant growth. - CORRECT ANSWER:
Nitrogen; Phosphorus; Potassium
List the types of specialized stems and roots commonly found in plants. - CORRECT
ANSWER: Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots
List three functions of water in a plant. - CORRECT ANSWER: 1)Ingredient of
Photosynthesis
2)Solvent for nutrients
3)Gives the plant tissue rigidity
List three primary elements for essential plant growth. - CORRECT ANSWER: Carbon;
Hydrogen; Oxygen
List three ways heat travels. - CORRECT ANSWER: 1. Conduction
2. Convention
3. Radiation
Most ornamental plants prefer a soil pH of ________. - CORRECT ANSWER: 5.5 - 7.0
Should organic amendments be added to a planting hole when planting an individual
tree? - CORRECT ANSWER: Research has shown that amendments do not
significantly enhance the growth of ornamental plants
