Louisiana landscape Horticulture
state exam |120 Questions and
Answers
Cultivars - -designates a special group of plants, may differ in growth habit,
season of maturity, fruit, color, shape
- root systems - -taproot and fibrous
- function of root system - -absorption, anchorage, conduction, storage
- taproot - -grows directly downward
- stems - -support, conduction, storage
- conduction - -movement of water, mineral solutions, and substances
manufactured in plants
- xylem - -vascular tissue that carries water upward from the roots to every
part of a plant through inner tissue
- phloem - -food from leaves moves out of leaves through outer stem
- monocots - -angiosperms that have only one seed leaf
- Dicots - -angiosperms that have two seed leaves
- girdle - -complete circle of dead tissue around the stem with interrupts the
food supply pipeline
- nodes - -where leaves attach to stem
- internodes - -the stem segments between nodes
- specialized stems and roots - -bulbs, corms, rhizomes, tubers, tuberous
roots
- Angiosperms - -flowering plants that produce seeds in fruit
- Gymnosperms - -plants that produce seeds but not flowers
- pistil - -Female part of the flower
, - stigma - -expanded tip of the style
- priority in which plants receive food - -flowers, seeds, leaves, stems, roots
- macronutrients - -nitrogen, phosphorus, potassium
- Micronutrients - -boron, manganese, copper, zinc, iron, molybdenum,
chlorine
- N-P-K - -nitrogen, phosphorus, potassium
- WATER - -ingredient in photosynthesis, solvent for nutrients, cools plant
during transpiration, gives plant tissue rigidity and turgor
- Permanent Wilting Point (PWP) - -soil moisture content at which plants can
no longer obtain enough moisture to meet transpiration requirements,
causing the plant to wilt and die
- Microclimate - -areas with certain consistent variations in light,
temperature, and moisture in a garden
- heat travels - -conduction, convection, radiation
- AVG. # of days per year above 86 degrees F zone 8 - -90 to 120 days
- AVG. # of days per year above 86 degrees F zone 9 - -120-150 days
- soil texture - -Relative amounts of the different types and sizes of mineral
particles in a sample of soil. classified as sand, silt, and clay
- soil structure - -the arrangement of soil particles. can be single grained
(sandy soils) or particles grouped together (clay soils)
- organic matter - -classified according to the percentage of organic matter
present in the strata's top 12 inches
- ph scale 1-6 - -acid
- ph scale 7 - -neutral
- ph scale 8-14 - -alkaline
- sulfur - -added to alkaline soils to lower pH
- lime - -added to acid soils to raise pH
state exam |120 Questions and
Answers
Cultivars - -designates a special group of plants, may differ in growth habit,
season of maturity, fruit, color, shape
- root systems - -taproot and fibrous
- function of root system - -absorption, anchorage, conduction, storage
- taproot - -grows directly downward
- stems - -support, conduction, storage
- conduction - -movement of water, mineral solutions, and substances
manufactured in plants
- xylem - -vascular tissue that carries water upward from the roots to every
part of a plant through inner tissue
- phloem - -food from leaves moves out of leaves through outer stem
- monocots - -angiosperms that have only one seed leaf
- Dicots - -angiosperms that have two seed leaves
- girdle - -complete circle of dead tissue around the stem with interrupts the
food supply pipeline
- nodes - -where leaves attach to stem
- internodes - -the stem segments between nodes
- specialized stems and roots - -bulbs, corms, rhizomes, tubers, tuberous
roots
- Angiosperms - -flowering plants that produce seeds in fruit
- Gymnosperms - -plants that produce seeds but not flowers
- pistil - -Female part of the flower
, - stigma - -expanded tip of the style
- priority in which plants receive food - -flowers, seeds, leaves, stems, roots
- macronutrients - -nitrogen, phosphorus, potassium
- Micronutrients - -boron, manganese, copper, zinc, iron, molybdenum,
chlorine
- N-P-K - -nitrogen, phosphorus, potassium
- WATER - -ingredient in photosynthesis, solvent for nutrients, cools plant
during transpiration, gives plant tissue rigidity and turgor
- Permanent Wilting Point (PWP) - -soil moisture content at which plants can
no longer obtain enough moisture to meet transpiration requirements,
causing the plant to wilt and die
- Microclimate - -areas with certain consistent variations in light,
temperature, and moisture in a garden
- heat travels - -conduction, convection, radiation
- AVG. # of days per year above 86 degrees F zone 8 - -90 to 120 days
- AVG. # of days per year above 86 degrees F zone 9 - -120-150 days
- soil texture - -Relative amounts of the different types and sizes of mineral
particles in a sample of soil. classified as sand, silt, and clay
- soil structure - -the arrangement of soil particles. can be single grained
(sandy soils) or particles grouped together (clay soils)
- organic matter - -classified according to the percentage of organic matter
present in the strata's top 12 inches
- ph scale 1-6 - -acid
- ph scale 7 - -neutral
- ph scale 8-14 - -alkaline
- sulfur - -added to alkaline soils to lower pH
- lime - -added to acid soils to raise pH
