Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Root systems
in plants are classified as either tap or
. a. | crown | c. | fibrous | b. | vertical | d. | lateral | | | | |
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2.
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The main
function of plant leaves is: a. | carbohydrate production. | c. | evaporation. | b. | regeneration. | d. | oxidation. | | | | |
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3.
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Ferns are
different from most horticultural crops because they reproduce from: a. | flowers. | c. | seed. | b. | fruit. | d. | spores | | | | |
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4.
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Photoperiodism is a plant response to: a. | day
length. | c. | gases from greenhouse
heaters. | b. | cool temperatures. | d. | warm temperatures | | | | |
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5.
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The number 8
in a 12-4-8 fertilizer represents: a. | calcium. | c. | phosphorus. | b. | nitrogen. | d. | potassium | | | | |
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6.
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The range of
the pH scale is: a. | 1 to
7. | c. | 7 to 1
4. | b. | 1 to
14. | d. | not
limited | | | | |
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7.
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The main
disadvantage of producing plants from seeds is that: a. | cross-pollination often
produces seedling variation. | b. | many homeowners can do it. | c. | pretreatment takes too
long. | d. | storage is difficult | | |
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8.
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African
violets are usually propagated by: a. | air layering. | c. | stem cuttings. | b. | budding. | d. | leaf petiole
cuttings | | | | |
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9.
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Seedlings
are hardened off by: a. | moving them to a warmer house. | c. | reducing water and using cooler
temperatures. | b. | increasing fertilization and watering. | d. | placing them in heavy shade | | | | |
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10.
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Water hose
ends should be kept off the ground or floor to prevent: a. | hose
rot. | c. | spread of
disease. | b. | backflow. | d. | wet bed areas. | | | | |
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11.
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What is the
main advantage of raised beds? a. | Irrigation requirements are reduced. | c. | Raised beds have better drainage. | b. | Fertilization needs are
reduced. | d. | The beds have better
sun exposure. | | | | |
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12.
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General
purpose fertilizers must be applied: a. | less often than slow release fertilizer. | b. | more frequently than
slow release fertilizers. | c. | at the same rate and frequency as slow release
fertilizer. | d. | earlier in the spring and later in the fall than slow release
fertilizers. | | |
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13.
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In one stage
of complete metamorphosis the insect does not feed and is primarily inactive.
This stage is the
stage. a. | maggot | c. | nymph | b. | larva | d. | pupa | | | | |
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14.
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Which is
commonly used for a cut flower? a. | Alstroemeria | c. | Begonia | b. | Geranium | d. | Pansy | | | | |
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15.
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Aluminum
foil collars are often used on tomato and pepper plants in the garden to protect them
from: a. | cutworms. | c. | verticillium
wilt. | b. | flea beetles. | d. | wire worms | | | | |
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16.
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Bacillus
thuringiensis is: a. | a bacterial insecticide. | b. | a plant that resembles
cornuta hollies. | c. | a chemical insecticide. | d. | one of the first
landscape plants produced through biotechnology. | | |
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17.
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A molluscide
is a pesticide used for the control of: a. | bacteria. | c. | slugs. | b. | nematodes. | d. | weeds. | | | | |
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18.
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Fumigant
pesticides are in a
form. a. | gas | c. | powder | b. | liquid | d. | solid | | | | |
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19.
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One reason
pests develop resistance to a pesticide is that: a. | many pests that are not treated survive and
multiply. | b. | pesticides kill all pests with each
application. | c. | pesticides selectively kill the most sensitive
pests. | d. | repeated pesticide applications become more
effective. | | |
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20.
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Which signal
word on a pesticide label indicates the most hazardous material? a. | Caution | c. | VERY
Hazardous | b. | Danger | d. | Warning | | | | |
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21.
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House plants
that can survive under low light conditions require a minimum of: a. | 5-10 foot
candles. | c. | 1000-5000 foot
candles. | b. | 50-100 foot candles. | d. | 5000-9000 foot candles. | | | | |
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22.
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With potted
plants, the presence of a white, flaky film on the soil surface or pot rim (especially on clay pots)
indicates: a. | fungus
growth. | c. | excessively drained
soil. | b. | a mealybug infestation. | d. | salt buildup. | | | | |
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23.
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Weeping fig
(Ficus benjamina) moved directly from a high light growing area to an interior room will often
drop its leaves because of: a. | high humidity. | c. | improper acclimatization. | b. | low
temperature. | d. | moist
heat. | | | | |
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24.
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Which of the
flowers listed is least shade tolerant? a. | Begonia | c. | Impatiens | b. | Coleus | d. | Marigold | | | | |
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25.
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Proper
maintenance of marigolds in landscape beds includes: a. | deep cultivation once
per month. | c. | dead-heading. | b. | very little fertilization. | d. | pruning of lateral flower buds. | | | | |
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26.
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Saving
vegetable seed from the home garden is recommended only for: a. | di-hybrid crossed
plants. | c. | open-pollinated
varieties. | b. | hybrid varieties. | d. | hybrid tomatoes and sweet corn. | | | | |
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27.
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Which month
would you most likely pot poinsettia cuttings to produce a saleable crop in 6"
pots? a. | November | c. | May | b. | July | d. | September | | | | |
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28.
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Which of the
following is true in terms of customer service? a. | Customers should always be greeted right
away. | b. | If a salesperson is good, appearance does not
matter. | c. | When making change for a sale, put the customer's bill in the register
first. | d. | All of the above. | | |
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29.
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A commercial
fertilizer with a 3:1:2 ratio is: a. | 4-12-8. | c. | 12-4-8. | b. | 8-4-12. | d. | 14-4-8 | | | | |
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30.
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Which soil
absorbs water the slowest? a. | clay | c. | sand | b. | loam | d. | sandy loam | | | | |
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31.
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To make the
soil more alkaline, what product would you apply? a. | iron | c. | phosphorus | b. | lime | d. | sulphur | | | | |
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32.
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The key to
developing an effective integrated pest management program (IPM) is: a. | the systematic use of
pesticides. | b. | the regular use of slow-release pesticides. | c. | the systematic
monitoring of pest populations. | d. | weekly pesticide applications | | |
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33.
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The
of hydrangeas can be changed by changing the pH of the soil. a. | flower
color | c. | plant
shape | b. | flower size | d. | leaf texture | | | | |
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34.
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Some common
plant diseases caused by fungus are: a. | bacterial leaf spots and mosaics. | c. | damping off and scale. | b. | pythium root rot and
powdery mildew. | d. | mycelial
fragments. | | | | |
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35.
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A
pre-emergence herbicide: a. | works by killing the weed's root
system. | c. | translocates through
the roots to the foliage. | b. | kills weed seed as they germinate. | d. | is sprayed onto the foliage of the weed. | | | | |
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36.
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All of the
following are principles of design used in floral design EXCEPT: a. | balance. | c. | rhythm. | b. | proportion. | d. | cycle. | | | | |
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37.
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Which of the
following improves soil drainage and aeration? a. | sand | c. | vermiculite | b. | perlite | d. | all the above | | | | |
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38.
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A 50 pound
bag of 5-10-15 contains ____ pounds of nitrogen.
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39.
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Which of the
following solutions is best to disinfect used pots? a. | 1 part bleach to 1 part
water | c. | 1 part bleach to 10
parts water | b. | 1 part bleach to 3 parts water | d. | 2 parts bleach to 1 part water | | | | |
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40.
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Soil left
from dead and diseased plants should be: a. | adjusted for pH. | c. | allowed to dry out. | b. | discarded. | d. | remixed. | | | | |
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41.
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Which of the
following methods is considered sexual propagation? a. | air
layering | c. | cleft
grafting | b. | T-budding | d. | seed planting | | | | |
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42.
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Which type
of cutting is wounded to improve rooting? a. | leaf tip | c. | woody | b. | herbaceous | d. | leaf petiole | | | | |
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43.
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When should
you apply most fertilizer? a. | at harvest | c. | before propagation | b. | at blooming
time | d. | during vegetative
growth | | | | |
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44.
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Which is a
worm-like pest that attacks plant roots? a. | Mealybugs | c. | Nematodes | b. | Mites | d. | Aphids | | | | |
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45.
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What is the
best rooting medium to use for air layering? a. | ground bark | c. | soil | b. | peat | d. | sphagnum moss | | | | |
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46.
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How many
cubic feet are there in a cubic yard of soil?
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47.
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What do you
call a mechanical device which introduces a concentrated fertilizer solution into the pipeline used
for watering plants? a. | Applicator | c. | Proportioner | b. | Audiometer | d. | Pump | | | | |
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48.
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Which of the
following is NOT required on a job application? a. | religion | c. | employment history | b. | educational
background | d. | references | | | | |
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49.
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Gladiolus
are: a. | seldom used by
florists. | c. | come in two
colors. | b. | used as line flowers in floral
designs. | d. | used as filler flowers
in floral designs | | | | |
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50.
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A pollen
grain moves first from the anther to the _________ to begin its journey to the ovary for
fertilization. a. | stigma | c. | sepal | b. | cambium | d. | serge | | | | |
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