Alaska State FFA Convention 2012
Floriculture Career Development Event - Knowledge Exam
(50 questions, 3 points each correct answer, 150 possible points)
Name: _____KEY_______________
Chapter/Team: __________________________
Circle the letter of your answer to correctly complete the following statements:
1.
A plant that sheds its leaves in the fall
a. is too young to survive the winter
b. does not have enough water
c. is propagated by tissue culture
d. is deciduous
e. is deficient in fertilizer
2.
Ground limestone or liquid lime is used to
a. make the soil less acidic
b. lower the soil pH
c. improve drainage
d. improve the ability to wet a soil mixture
e. improve plant water uptake
3.
Evaporative cooling in a greenhouse builds on the principle of
a. global warming
b. the high latent heat of water
c. sunrise and sunset
d. solar radiation
e. air circulation
4.
To ensure greenhouse grown transplants get established after field planting, they should be
a. heavily fertilized
b. pinched
c. disbudded
d. hardened off
e. deadheaded
5.
There are several basic principles of floral design including
a. vase and foam
b. floral preservatives and bows
c. balance and harmony
d. color and size
e. fashion and traditions
6.
Petiole is a
a. fibrous root
b. a small star-like flower
c. stalk connecting a leaf to the stem
d. simple dry fruit that splits open at maturity
e. point on the stem where a branch, leaf or bud is connected
-27.
The type of plant that lives for more than two years is
a. photoperiodic
b. genetically modified
c. perennial
d. deciduous
e. annual
8.
Chlorophyll is essential in plants for
a. flowering
b. fruit set
c. photosynthesis
d. maintaining turgor
e. water uptake
9.
A technique using specific day and night temperatures to control plant height is called
a. photoperiodism
b. vernalization
c. DIF
d. HAF
e. acclimatization
10.
The science dealing with processes, activities and functions of plants is
a. arboriculture
b. plant physiology
c. viticulture
d. floral design
e. landscaping
11.
An iron deficiency usually first appears on the
a. the roots
b. lower parts of the plant
c. old woody branches
d. developing young shoots
e. old fully developed leaves
12.
Light emitting diodes (LEDs) are of interest for greenhouses because
a. less watering is required
b. the light is more diffuse
c. plants form roots faster
d. air circulation is improved
e. they require less electrical energy
13.
Dethatching a lawn is
a. to improve water uptake
b. weeding the lawn
c. method of pest and disease control
d. removing old plant parts and grass clippings
e. mowing the lawn
-314.
Important components to properly and safely design outdoor steps in a landscape design are
a. riser and tread
b. aeration and color
c. step and material
d. right and left
e. watering and drainage
15.
Floral arrangements with emphasis on line, elegance and simplicity are examples of
a. landscape designs
b. garden-style designs
c. tussie-mussie designs
d. oriental designs
e. clustered designs
16.
A freestanding greenhouse at high latitudes is often oriented east-west to reduce
a. light from streets and traffic to enter the greenhouse
b. shadowing of natural light entering the greenhouse
c. impact of heavy winds from the north or south
d. construction costs
e. gravitational forces
17.
The compartment in the plant cell holding the plant sap is the
a. vacuole
b. tonoplast
c. mitochondrion
d. ribosome
e. stomate
18.
A horizontal airflow fan (HAF) system in a greenhouse provides
a. carbon dioxide
b. fertilizer
c. increased air humidity
d. internal air circulation
e. pesticides for pest control
19.
Conductive vascular tissue in plants consists of
a. flowers and fruits
b. parenchyma and chlorenchyma
c. xylem and phloem
d. pipes and hoses
e. vacuoles and stomata
20.
Color is important in floral design. Three basic properties of color are
a. shade, accent, foundation
b. saturation, warmth, tint
c. color scheme, complementary, coolness
d. color wheel, saturation, coolness
e. hue, value, intensity
-421.
Peat-lite mixes are used extensively in greenhouses because field soil
a. does not hold a lot of water
b. is too compact (not enough air)
c. weighs too little (not enough support)
d. is not environmentally friendly
e. is too cold (poor root growth)
22.
A plant created using recombinant DNA techniques is
a. grafted
b. tropical
c. transgenic
d. tissue cultured
e. layered
23.
A short stem on an apple tree is called a
a. branch
b. calyx
c. rhizome
d. thorn
e. spur
24.
High tunnels have become popular in horticulture. A high tunnel is
a. a temporary field greenhouse
b. a facility for growing genetically modified plants
c. a covered alley connecting two greenhouse sections
d. a structure used to overwinter plants
e. used to store plants in the dark
25.
Aging and decaying plant tissues produce and release
a. glycol
b. biofuels
c. helium
d. ethylene
e. gasoline
26.
Common components of commercial soilless peat-lite growing mixes are
a. peat, sand, field soil
b. peat, nitrogen, field soil
c. peat, paper, rockwool
d. peat, sand, sawdust
e. peat, perlite, vermiculite
27.
Disbudding is a technique to produce a plant with
a. a single large flower
b. lots of leaves
c. lots of branches
d. lots of flowers
e. no flowers
-528.
Plants grown hydroponically are grown
a. without any fertilizer
b. using tissue culture
c. using water as the growing medium
d. completely submerged in water
e. in a Petri dish
29.
The larval stage of ___________ may cause a lot of damage to seedlings and potted plants
a. aphids
b. fungus gnats
c. spider mites
d. ladybugs
e. bumblebees
30.
Adding black to a hue of a color results in a
a. shade of the color
b. secondary accent color
c. contrasting color
d. complementary color
e. lighter color
31.
Bulbs are used to propagate
a. palm trees
b. sunflowers
c. daffodils
d. pansies
e. carnations
32.
Zeatin is a naturally produced _________ in plants
a. cytokinin
b. pigment
c. vitamin
d. biofuel
e. abscisic acid
33.
These elements are considered essential nutrients for plant growth
a. iron, silver and gold
b. nitrogen, phosphorous and lead
c. nitrogen, iron and bronze
d. nitrogen, potassium and phosphorous
e. nitrogen, iron and silver
34.
The primary function of roots is for
a. plant propagation
b. plant identification
c. uptake of water and nutrients from the soil
d. drain excess water from the plant
e. protection against pests and diseases
-635.
A monocot is a plant with
a. one seed leaf, fibrous roots, flower parts in sets of 3
b. one seed leaf, taproot, flower parts in sets of 4 or 5
c. two seed leaves, vascular cambium, flower parts in sets of 3
d. two seed leaves, no taproot, flower parts in sets of 3
e. two seed leaves, taproot, flower parts in sets of 4 or 5
36.
A constant liquid feed (CLF) system provides plants with
a. daily sequences of light and dark
b. fertilizer
c. continuous watering
d. shade
e. vitamins
37.
Raffia is often used in flower arrangements
a. to strengthen flower stems
b. mixed in the water to make the flowers last longer
c. to improve flower and foliage color
d. as bows and ribbons
e. to prevent flowers from wilting
38.
Evapotranspiration (ET) is a measure of
a. the cooling capacity in a greenhouse
b. crop yield
c. extra terrestrial light
d. the percent soil surface covered with vegetation
e. water removed from the soil and vegetation
39.
Pinching is a technique for
a. applying fertilizer
b. preventing plants from drying out
c. propagation of orchids
d. encouraging the development of side branches
e. arranging small flowers in bouquets
40.
DIF is an abbreviation for an important growing technique using
a. a daily integrated fertilizer rate
b. a daily irrigation frequency
c. a daily water flow
d. the difference between day and night temperatures
e. a daily irradiance flux
41.
In a 100 pound fertilizer bag with the analysis 15-16-17, there is
a. 100 pounds of nitrogen
b. 30 pounds of nitrogen
c. 17 pounds of nitrogen
d. 16 pounds of nitrogen
e. 15 pounds of nitrogen
-742.
pH is important for
a. the amount of water available to plants in a growing medium
b. the availability of nutrients in a growing medium for plant uptake
c. the overall physical health of the plant
d. the amount of air in a growing medium
e. how often plants in containers need to be watered
43.
The light compensation point is
a. approximately 1,000 foot-candles
b. where photosynthesis is at maximum
c. where the rate of photosynthesis equals respiration
d. the optimum amount of light for plant growth
e. the total amount of light during a day
44.
Seedlings produced in plugs are grown
a. in water
b. using electricity
c. using fertilizer containing polymers
d. using natural gas
e. in very small containers
45.
The abbreviation PPE is sometimes used in greenhouse production and stands for
a. personal protective equipment
b. pesticide phytotoxicity to endangered species
c. pesticide photodegradation energy
d. pesticide persistence expectation
e. post pesticide emergency
46.
The pineapple is a multiple fruit that develops from
a. several leaves fused together
b. a cluster of flowers
c. an apple
d. one single flower
e. a pine cone
47.
A plant requiring a specific day length to initiate and form flowers is
a. gravitropic
b. thermoperiodic
c. scototropic
d. photoperiodic
e. transgenic
48.
Drainage of a potted plant is improved by
a. increasing the height of the container
b. using a round compared to a square container
c. using field soil as the growing medium
d. packing the growing medium tightly around the roots
e. making the drainage holes larger
-849.
Plants grow taller in response to
a. gibberellic acid
b. increased air circulation
c. lower temperatures
d. Bonzi
e. wilting
50.
An internode is a
a. type of seedling flat
b. leaf with several small leaflets
c. greenhouse type
d. section between two nodes on the stem
e. pruning technique