Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | The science
and practice of growing and harvesting flowering plants is called a. | ornamental and
landscape horticulture | c. | olericulture | b. | floriculture | d. | pomology | | | | |
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| 2. |
The word
horticulture, a Latin word, means a. | grower of crops | c. | lover of plants | b. | plant
cultivator | d. | garden
cultivation | | | | |
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| 3. | Two main
functions of stems are a. | to store food and move water up to the flowering parts of the
plant | b. | movement of water and minerals and support plant
parts | c. | to manufacture food and store it for future
use | d. | to furnish food for
human beings and other animals | | |
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| 4. | The green
color of leaves is caused by tiny particles in the food-producing cells called a. | guard
cells | b. | epidermis | c. | chloroplasts | d. | starch | | |
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| 5. | Advantages
of a good artificial media over native soil are a. | it is sterile and uniform in content | b. | it is lighter in weight
and therefore easier to handle and ship | c. | it has good drainage and moisture-holding
ability | d. | all the above | | |
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| 6. | Phosphorus
helps plants to a. | produce more flowers
and seeds | c. | grow much larger than
they would otherwise | b. | resist disease and develop strong
roots | d. | grow rapidly and
develop a dark green color | | | | |
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| 7. | ____________
is often used on poinsettias to shorten the stems a. | Cycocel | c. | Malathion | b. | Marathon | d. | Subdue | | | | |
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| 8. | A chemical
most often used for rooting cuttings is a. | indoleacetic acid | c. | naphthaleneacetic acid | b. | indolebutyric
acid | d. | talc | | | | |
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| 9. | What number
ribbon is most often used for a door wreath?
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| 10. | How many
pounds of potassium are in a 50-pound bag of 10-20-20?
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| 11. | A genus can
be defined as a. | a group of plants that
have more in common with each other than they have with the members of any other
genus | b. | a group of plants that are all alike | c. | a group of plants that
have the same flower structure | d. | a smart group of plants | | |
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| 12. | The best
soil temperature for germinating most seeds is… a. | 40Eto 65E
F | c. | 75Eto 80E
F | b. | 65Eto 70E
F | d. | 85Eto 90E
F | | | | |
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| 13. | After
removing bedding plants from the greenhouse they should be __________ before planting
outside. a. | pruned | c. | hardened
off | b. | fertilized | d. | pinched | | | | |
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| 14. | The tulip is
a ____________ bulb that has dry membranous outer scales that protect the bulb against drying and
injury. a. | hardy | c. | scaley | b. | nontunicate | d. | tender | | | | |
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| 15. | In
horticulture, when we talk about PPM, we are most commonly talking about... a. | pest production
management | c. | parts per
million | b. | pellets per meter | d. | plant propagation management | | | | |
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| 16. | A tuber is a
swollen end of an underground side shoot or stem. One common tuber is ... a. | Tulip | c. | Iris | b. | Daylily | d. | Irish potato | | | | |
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| 17. | Which is
not a required condition to assure successful plant grafting a. | Waterproofing all cut
surfaces after the graft is made | b. | Compatibility of plant material | c. | Close contact between
the scion and rootstock | d. | Dormant rootstock | | |
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| 18. | Poinsettias
produce their color in the leaves below the flower called the a. | branches | b. | bracts | c. | terminal ends | d. | canes | | |
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| 19. | What agency
established the adopted standards for handling pesticides a. | Green
Industry | c. | Environmental
Protection Agency | b. | Commercial Flower Growers | d. | Agriculture Chemical Safety Board | | | | |
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| 20. | What kind of
insects do systemic insecticides kill better than any other insecticide? a. | sucking | c. | active | b. | chewing | d. | nonactive | | | | |
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| 21. | Which is NOT
a good recommendation for keeping a healthy cyclamen in your home a. | Keep evenly
moist | c. | Well draining
media | b. | Full direct sunlight | d. | Slow release fertilizer | | | | |
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| 22. | Leaf petiole
cuttings can be used to propagate a. | marigolds. | c. | boston ferns. | b. | chrysanthemums. | d. | african
violets. | | | | |
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| 23. | In plant
breeding there is much use of the technique known as F1 hybridization this
means... a. | that two true-breeding
species are crossed to produce a hybrid generation | b. | that two of the same
species are breed to produce a different species | c. | that unstable variants
are crossed to create a new stable variant | d. | that offspring of the F1 hybrids will be exactly the
same | | |
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| 24. | A group of
vegetatively propagated plants from a single parent is known as a... a. | clone. | c. | node. | b. | genus. | d. | sport. | | | | |
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| 25. | The purpose
of circulation and exhaust fans in a greenhouse is to... a. | regulate
temperature. | c. | provide air
movement. | b. | adjust the humidity. | d. | all of the above. | | | | |
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