General Knowledge Senior Floriculture CDE Question Bank

monophagus

Phytophagus insects are those that eat plant tissues for their nutrients. Insects that feed only on a specific host plant are called __________________.

A. monophagus

B. polyphagus

C. oligophagus

D. sagophagus

2 multiple choice options

pathogens

A disease triangle (shown in Image 1) shows how ________________, the environment, and a host impact the development of a disease.

A. seeds

B. temperature

C. pathogens

D. soil

3 multiple choice options

They require the same maintenance and care level as a typical ground-level garden.

Elaborate rooftop gardens are increasingly popular in larger cities' commercial and residential areas. Which of the following is NOT true regarding green roof systems?

A. They reduce rainwater runoff.

B. They require the same maintenance and care level as a typical ground-level garden.

C. The structural capability of the building should be considered when planning the garden.

D. They increase insulation for the building.

3 multiple choice options

Chrysanthemums

Which of the following is NOT a greenhouse crop typically grown for the Christmas season?

A. Amaryllises

B. Chrysanthemums

C. Cyclamens

D. Poinsettias

3 multiple choice options

True

Some plants produce plants from seed that look nothing like the parent plant. These plants are referred to as "not true to type'.

A. True

B. False

1 multiple choice option

Life expectancy of the plant is longer.

Which of the following is NOT true about plant growth after applying plant growth regulators (PGRs)?

A. Life expectancy of the plant is longer.

B. Plants use less water.

C. Plants become resistant to some fungal diseases.

D. Plants become darker green.

3 multiple choice options

top

No matter the shape of the pot (circle, square, etc), the size of the pot is measured in inches by measuring the diameter across the __________ of the pot.

A. bottom

B. diagonal

C. side

D. top

3 multiple choice options

soil

If a pot is sold in quarts or gallons, this is measurement of the amount of _______ the pot will hold.

A. plant material

B. roots

C. soil

D. water

3 multiple choice options

wilt

Greenhouse growers suggest watering when the plant is flagging. Flagging is the condition when the plant is just about to:

A. bud.

B. bloom.

C. sprout.

D. wilt.

3 multiple choice options

20-10-10

Which of the following is an example of a complete fertilizer?

A. 0-10-20

B. 0-20-0

C. 30-10-0

D. 20-10-10

3 multiple choice options

Poinsettias

Short-day plants require shorter days and longer nights to flower. Which of the following is considered a short-day plant?

A. Impatiens

B. Geraniums

C. Poinsettias

D. Roses

3 multiple choice options

PPM

Fertilizer injectors are commonly used in commercial greenhouses, and fertilizer rates are applied in ______ of nitrogen.

A. IPM

B. PPM

C. SDS

D. DIF

3 multiple choice options

polyethylene film

Under normal conditions, ________________ is a greenhouse covering that typically has a life span of 2-3 years before needing to be replaced.

A. glass

B. glaze

C. polycarbonate

D. polyethylene film

3 multiple choice options

corrugated cellulose

Evaporative cooling systems have cooling pads made from ____________ that are dampened with water.

A. aluminum

B. corrugated cellulose

C. fiberglass

D. plastic

3 multiple choice options

Amaryllis

Spring-blooming bulbs can be planted in the fall and overwinter in the ground or in containers. Which of the following is NOT considered a spring-blooming bulb?

A. Amaryllis

B. Daffodil

C. Hyacinth

D. Tulip

3 multiple choice options

aeroponic

In a(n) _____________ system, the plant roots are suspended in air and misted intermittently with a

nutrient solution.

A. aeroponic

B. aquaponic

C. hydroponic

D. water culture

3 multiple choice options

radicle

The final stage of early germination, which occurs after imbibition and the lag phase, is called ___________ protrusion.

A. epicotyl

B. hypocotyl

C. plumule

D. radicle

3 multiple choice options

germination

The seeds of bedding plant plugs are often primed before planting. Seed priming is the process of hydrating and then drying out the seed to increase __________________.

A. dormancy

B. fertilization

C. germination

D. pollination

3 multiple choice options

finer

Germination growing media typically has a __________ texture than media used for other parts of plant production. This is to ensure good seed-to-soil contact.

A. coarser

B. denser

C. finer

D. heavier

3 multiple choice options

3

A fertilizer with a 3-1-2 ratio contains _______ times as much nitrogen as phosphate.

A. 1

B. 1.5

C. 2

D. 3

3 multiple choice options

ammonia

The most commonly and economically used source of nitrogen comes from ______________.

A. ammonia

B. manure

C. nitrate

D. nitrite

3 multiple choice options

Plasticulture

_______________, shown in Image 2, is an impermeable, plastic, inorganic mulch material commonly used in vegetable and hoop house production.

A. Geotextile

B. Hydroponics

C. Plasticulture

D. Polyethylene

3 multiple choice options

Peat moss

__________________ is made from aged, decomposed plant and animal matter and forms the foundation of most potting soil mixes.

A. Bark

B. Peat moss

C. Sphagnum moss

D. Vermiculite

3 multiple choice options

respire

Soil has a network of air spaces that allow roots to ____________, meaning they release carbon dioxide and take in oxygen.

A. develop

B. photosynthesize

C. respire

D. ventilate

3 multiple choice options

photoblastic

Seeds that are influenced by the presence or absence of light are __________________.

A. photoblastic

B. photoperiodic

C. photosynthetic

D. phototropic

3 multiple choice options

Danger

What signal words must be printed on the label of a pesticide classified as Toxicity Category I? A. Caution

B. Warning

C. Danger

D. No warning label needed

3 multiple choice options

Integrated Pest Management

IPM as a term means:

A. Integral Performance Measure

B. Interval Parts per Million

C. Integrated Pest Management

D. Intermediate Pest Measure

3 multiple choice options

Breaking or softening the seed coat to hasten germination

Your teacher is talking about scarifying seeds before sowing them. What is the purpose of scarification for seeds?

A. Soaking in a fungicide solution for 10 minutes to prevent disease

B. Cutting the seed in half

C. Washing the seed to rid the seed of any contaminants

D. Breaking or softening the seed coat to hasten germination

3 multiple choice options

Applying concentrated water-soluble fertilizer to greenhouse crops

Injectors (often called a Dosatron) are used in greenhouse operations to perform which task?

A. Applying concentrated water-soluble fertilizer to greenhouse crops.

B. Applying a granular slow-release fertilizer to greenhouse crops.

C. Adjusting the light intensity in the greenhouse.

D. Increasing the humidity in the greenhouse.

3 multiple choice options

Soluble Salts

In growing greenhouse crops, electrical conductivity or (EC) is often used to measure the amount of ____________ in the growing media.

A. pH level

B. Growing media

C. Pesticide concentration

D. Soluble Salts

3 multiple choice options

Nitrogen, phosphorus, potassium

A complete greenhouse crop fertilizer contains all three major or macro nutrients:

A. Iron, nitrogen, phosphorus

B. Boron, manganese, molybdenum

C. Magnesium, sulfur, calcium

D. Nitrogen, phosphorus, potassium

3 multiple choice options

Foot-candles or Lux

Greenhouse light measurements are measured in______.

A. Inch-candles

B. Intensity discharge

C. Foot-candles or Lux

D. None of the above

3 multiple choice options

0-5%

What percentage of organic matter is the composition of an ideal soil?

A. 0-5%

B. 10%

C. 25%

D. 50%

3 multiple choice options

roots

As much as 90-99% of water that is taken in by ___________ is lost through transpiration.

A. roots

B. leaves

C. stems

D. flowers

3 multiple choice options

A greenhouse connected along the length of the eave.

By definition, a ridge and furrow greenhouse is:

A. A greenhouse built as a stand-alone greenhouse

B. A greenhouse connected along the length of the eave.

C. A greenhouse built as a lean-to greenhouse

D. A greenhouse with an uneven-span design

3 multiple choice options

Photoperiodism

The term used to describe a plant's response to different periods of day and night, affecting its growth and maturity, is:

A. Photoperiodism

B. Photosynthesis

C. Respiration

D. Assimilation

3 multiple choice options

Denitrification

The process whereby nitrogen is lost from the soil to the atmosphere is called:

A. Chlorosis

B. Nitrification

C. Denitrification

D. Leaching

3 multiple choice options

Corolla

The collection of petals on a flower is referred to as the

A. Sepal

B. Corolla

C. Calyx

D. Pedicel

3 multiple choice options

Complete flower

Flowers that have sepals, petals, stamens, and pistils are called:

A. Incomplete flower

B. Imperfect flower

C. Complete flower

D. Determinate flower

3 multiple choice options

Floriculture

Which of the following is the scientific study of flowers and flowering plants?

A. Pomology

B. Olericulture

C. Floriculture

D. Arboriculture

3 multiple choice options

capitalized

Genus and species are always italicized, and the genus name is always ____________.

A. written in French

B. capitalized

C. abbreviated

D. written after the species name

3 multiple choice options

Anther

Which of the following plant parts is responsible for producing pollen?

A. Stamen

B. Filament

C. Pistol

D. Anther

3 multiple choice options

bulblet

A small bulb attached to the main bulb, which serves as a means of reproduction for the plant, is known as a

A. corm.

B. tuber.

C. tunicate bulb.

D. bulblet.

3 multiple choice options

Insecticide

Insects are treated by:

A. Molluscicide

B. Herbicide

C. Insecticide

D. Fungicide

E. Miticide

3 multiple choice options

Miticide

Spider Mites are treated by:

A. Molluscicide

B. Herbicide

C. Insecticide

D. Fungicide

E. Miticide

3 multiple choice options

Herbicide

Weeds are treated by:

A. Molluscicide

B. Herbicide

C. Insecticide

D. Fungicide

E. Miticide

3 multiple choice options

Fungicide

Botrytis is treated by:

A. Molluscicide

B. Herbicide

C. Insecticide

D. Fungicide

E. Miticide

3 multiple choice options

Molluscicide

Slugs or Snails are treated by:

A. Molluscicide

B. Herbicide

C. Insecticide

D. Fungicide

E. Miticide

3 multiple choice options

Compost

Which of the following is NOT a component commonly found in soilless media?

A. Compost

B. Perlite

C. Vermiculite

D. Peat moss

3 multiple choice options

Sandy soils

Which soil texture has the largest size particles?

A. Loamy soils

B. Sandy soils

C. Clay soils

D. Soilless media

3 multiple choice options

Temperature

Which of the following is not a necessary component for photosynthesis to occur?

A. Light

B. Water

C. Temperature

D. Carbon Dioxide

3 multiple choice options

Turgor

________________ pressure keeps plant cells rigid. If there is a drop in ____________, wilting occurs, as seen in Figure 1 above.

A. Humidity

B. Transpiration

C. Turgor

D. Capillary action

3 multiple choice options

Mottled leaves

Which of the following is NOT a sign of nitrogen deficiency?

A. Yellowing of leaves

B. Stunted growth

C. Chlorosis

D. Mottled leaves

3 multiple choice options

fertigation

The addition of fertilizers to irrigation water is known as ____________________________.

A. fertigation

B. hydroponics

C. aquaponics

D. soluble

3 multiple choice options

Iron

Which of the following is NOT a secondary macronutrient?

A. Calcium

B. Iron

C. Magnesium

D. Sulfur

3 multiple choice options

gymnosperms

Plants that do not produce a seed within a protective structure of a fruit are called a ____________.

A. angiosperms

B. gymnosperms

C. genus

D. phylum

3 multiple choice options

chloroplasts

In a plant cell, ______________ are the site where photosynthesis occurs.

A. chloroplasts

B. chromoplasts

C. stroma

D. thylakoids

3 multiple choice options

adventitious

Roots that grow from an unusual place, such as a stem or leaves, are known as ______________.

A. tap

B. fibrous

C. adventitious

D. air

3 multiple choice options

leaf tip browning

Houseplants and/or foliage plants are typically tropical plants that have humidity levels of 70-90% in their natural growing environment. When grown indoors at temperatures above 65 F, they will show symptoms of low levels of relative humidity such as ________________.

A. yellowing of older foliage

B. leaves turning a purple color

C. producing low yields

D. leaf tip browning

3 multiple choice options

Two pairs of legs

Which of the following is NOT a characteristic of an insect?

A. A exoskeleton

B. Two pairs of legs

C. Segmented body

D. One pair of antennae

3 multiple choice options

high tunnel

A single stand-alone structure, shown in Figure 2, covered in polyethylene plastic with roll-up doors and sides and allows for nearly year-round vegetable or cut flower production is called a ____________.

A. high tunnel

B. headhouse

C. windbreak

D. quonset

3 multiple choice options

nodes

A stem has ______________, the areas where leaves develop.

A. terminal buds

B. internodes

C. nodes

D. axils

3 multiple choice options

alternating

Buds that are staggered along the stem are considered __________________ bud arrangement.

A. opposite

B. alternating

C. whorled

D. compound

3 multiple choice options

anther

The part of the flower that is responsible for producing pollen is known as the _______________.

A. anther

B. filament

C. ovary

D. stamen

3 multiple choice options

texture

Soil ________________ refers to the proportion of different sizes of mineral particles present in the soil.

A. class

B. density

C. structure

D. texture

3 multiple choice options

uptake nutrients

Soil pH influences plant growth because it indirectly affects the plant's ability to:

A. absorb water.

B. fight off pests and diseases.

C. uptake nutrients.

D. absorb sunlight.

3 multiple choice options

guard

The plant cells that open and close, allowing plant leaves to transpire as well as exchange gases, are the _____________ cells.

A. chloroplast

B. guard

C. nucleus

D. ribosomes

3 multiple choice options

embryo

The part of the seed labeled A in Figure 3 above is the ___________________.

A. cotyledons

B. embryo

C. endosperm

D. seed coat

3 multiple choice options

Phosphorus

_______________ affects plants in many ways, including encouraging plant cell division and the formation of flowers and seeds.

A. Calcium

B. Nitrogen

C. Phosphorus

D. Potassium

3 multiple choice options

lime

Which of the following would NOT help lower soil pH?

A. aluminum sulfate

B. iron sulfate

C. lime

D. sulfur

3 multiple choice options

leaching

Nitrogen is lost from the soil very easily by _______________, washing out or draining away from the soil.

A. leaching

B. transpiration

C. field capacity

D. capillary action

3 multiple choice options

selective

The largest group of weed killers are ___________ herbicides, which kill some plants but not others.

A. selective

B. nonselective

C. preemergence

D. postemergence

3 multiple choice options

fungal

Many kinds of ____________ diseases, such as leaf spot and rust, attack plants.

A. bacterial

B. fungal

C. viral

D. nematode

3 multiple choice options

Systemic

______________ chemicals enter the plant sap and move throughout the entire plant. When insects eat part of the plants or suck the sap, the chemical enters the insect's body.

A. Contact

B. Fumigant

C. Repellent

D. Systemic

3 multiple choice options

Peat moss

___________________ is partially decomposed vegetation collected from marshes, bogs, or swamps that have been preserved underwater.

A. Peat moss

B. Perlite

C. Sphagnum moss

D. Vermiculite

3 multiple choice options

seed coat

The part of the seed labeled B in Figure 3 above is the ___________________.

A. cotyledons

B. embryo

C. endosperm

D. seed coat

3 multiple choice options

endosperm

The part of the seed labeled C in Figure 3 above is the ___________________.

A. cotyledons

B. embryo

C. endosperm

D. seed coat

3 multiple choice options

Horticulture

The science, art, technology, and business of plant cultivation is the definition of

A. Botany.

B. Agronomy.

C. Horticulture.

D. Forestry.

3 multiple choice options

Roots

Which plant part is responsible for the up taking of water and nutrients and anchoring and supporting the plant?

A. Roots

B. Leaves

C. Stems

D. Plant Cells

3 multiple choice options

leaves

The stomata are pores on plant _______ that open and close to allow gas exchange and control water loss.

A. roots

B. leaves

C. stems

D. cells

3 multiple choice options

adventitious

Roots growing out of the nodes of climbing vines, such as English Ivy or Pothos, are known as ____________________ roots.

A. tap

B. air

C. fibrous

D. adventitious

3 multiple choice options

Rhizome

An underground stem, such as ginger, bamboo, or aloe, that runs horizontally beneath the soil's surface and produces roots and shoots is known as a _________________.

A. Corm

B. Bulb

C. Rhizome

D. Stolon

3 multiple choice options

The female organs of a flower

Pistil is the:

A. The part of the flower that produces the pollen

B. The female organs of a flower

C. A slender stalk where the pollen tube develops

D. A sticky appendage where pollen is received

E. The male portion of the flower

3 multiple choice options

The male portion of the flower

Stamen is the:

A. The part of the flower that produces the pollen

B. The female organs of a flower

C. A slender stalk where the pollen tube develops

D. A sticky appendage where pollen is received

E. The male portion of the flower

3 multiple choice options

A sticky appendage where pollen is received

Stigma is the:

A. The part of the flower that produces the pollen

B. The female organs of a flower

C. A slender stalk where the pollen tube develops

D. A sticky appendage where pollen is received

E. The male portion of the flower

3 multiple choice options

The part of the flower that produces the pollen

Anther is the:

A. The part of the flower that produces the pollen

B. The female organs of a flower

C. A slender stalk where the pollen tube develops

D. A sticky appendage where pollen is received

E. The male portion of the flower

3 multiple choice options

A slender stalk where the pollen tube develops

Style is the:

A. The part of the flower that produces the pollen

B. The female organs of a flower

C. A slender stalk where the pollen tube develops

D. A sticky appendage where pollen is received

E. The male portion of the flower

3 multiple choice options

respiration

The above formula shown in Figure 1 is a summary equation for ______________________.

A. photosynthesis

B. respiration

C. transpiration

D. ATP production

3 multiple choice options

Hydrogen

Which of the following essential elements is never limited because it is constantly available through the uptake of water?

A. Hydrogen

B. Carbon

C. Nitrogen

D. Calcium

3 multiple choice options

Oxygen

Which of the following is NOT a secondary macronutrient?

A. Calcium

B. Magnesium

C. Sulfur

D. Oxygen

3 multiple choice options

root

During seed germination, the first part to emerge is the _________________.

A. leaf

B. flower

C. root

D. stem

3 multiple choice options

hardwood

Stem cuttings are classified by the plant's type of stem tissue. Stem tissue that is mature, dormant, and woody is considered ______________.

A. deciduous

B. herbaceous

C. hardwood

D. softwood

3 multiple choice options

pseudobulb

Many orchids have a swollen, fleshy stem structure called a ____________, that serves as a specialized storage organ.

A. rhizome

B. pseudobulb

C. tuber

D. organelle

3 multiple choice options

dicot

Plants characterized by two cotyledons, flower parts in fours or fives, and pinnate or palmate leaf venation are known as ___________________.

A. monocots

B. dicot

C. herbaceous

D. deciduous

3 multiple choice options

genus

In a scientific name, the first name is known as the ___________________.

A. genus

B. species

C. cultivar

D. class

3 multiple choice options

midrib

The ______________ is the largest vein in the center of the leaf.

A. petiole

B. blade

C. apex

D. midrib

3 multiple choice options

terminal bud

The _________________ is positioned at the tip of the stem and contains cells of undeveloped leaf, stem, and/or flowers.

A. bud scale

B. node

C. terminal bud

D. lateral bud

3 multiple choice options

root hairs

The greatest amount of water and mineral absorption occurs through the ________________.

A. root hairs

B. xylem

C. phloem

D. cambium

3 multiple choice options

complete

A flower that has all four major parts (sepal, petal, stamen, and pistil) is a(n) __________ flower.

A. incomplete

B. complete

C. imperfect

D. perfect

3 multiple choice options

micropropagation

Tissue culture is also commonly referred to as _____________________.

A. micropropagation

B. separation

C. artificial medium

D. genetic engineering

3 multiple choice options