Name: 
 

1982 National Floriculture Exam



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

Rhizoctonia and pythium are _______ which cause plant diseases.
a.
bacteria
c.
fungi
b.
bracts
d.
viruses
 

2. 

Why is it important not to keep fruit baskets in the same cooler with fresh flowers?
a.
Because fruit flies eat flower petals
c.
Because bananas and apples carry a toxin that will be transmitted to the flowers
b.
Because ethylene gas from the fruit will cause the flowers to age quickly
d.
Because florists should not sell fruit; that is the job of the grocery store
 

3. 

When a customer enters a flower shop, the salesperson should:
a.
Allow time for the customer to wander around the shop
c.
Wait for the person to ask a question
b.
Greet him/her at once, even if the salesperson is busy
d.
Immediately approach the customer with a pencil and pad
 

4. 

Excessive vegetative growth is likely to occur in geraniums:
a.
If the pH is too high
c.
If the nitrogen level is too high
b.
Under strong sunlight
d.
Under low temperature conditions
 

5. 

Cycocel is a (an):
a.
Insecticide
c.
Chemical growth retardant
b.
Fungicide
d.
Part of the plant cell wall
 

6. 

Most pot plants in a flower shop should be kept at a relative humidity of 70% and at a temperature of:
a.
30-70o F. (-1-21oC)
c.
50-70o F. (10-21oC)
b.
40-60o F. (4-21oC)
d.
70-90o F. (16-21oC)
 

7. 

The flowering potted plants produced in greatest numbers in the U.S. are:
a.
poinsettia and Easter lily
c.
Chrysanthemum and poinsettia
b.
Easter lily and azalea
d.
Geranium and wax begonia
 

8. 

The hydrangea flower color percentages needed by most flower shops are:
a.
50% pink, 30% blue, 20% white
c.
20% pink, 40% blue, 40% white
b.
33% pink, 33% blue, 33% white
d.
80% pink, 10% blue, 10% white
 

9. 

Growth-promoting substances are often applied to the bases of cuttings when propagating plants in order to:
a.
Increase percentage of cuttings rooted
c.
Encourage compact top growth
b.
Eliminate "bottom" heat
d.
Speed rooting
 

10. 

What is the name of the growth regulator frequently used on petunia crops to control legginess?
a.
B-Nine
c.
Malathion
b.
Osmocote
d.
Benlate
 

11. 

Propagation schedules for bedding plants, (anywhere in the U.S.), are based on a sales period just after:
a.
Memorial Day
c.
Labor Day
b.
The first fall frost
d.
The last spring frost
 

12. 

If a hue is diluted with gray, the resulting color is called a:
a.
value
c.
shade
b.
tint
d.
Tone
 

13. 

Smoking is not permitted in greenhouses in which tomatoes are grown because:
a.
Smokers may carry viruses on their hands
c.
It delays flowering
b.
It causes an increase of SO2 in the greenhouse
d.
It increases the air temperature
 

14. 

Effective treatment with fog or bomb-type pesticides depends on:
a.
Having the ventilators slightly open to avoid a pesticide concentration injurious to the plants
c.
Having the greenhouse tightly closed overnight while the pesticide acts and then becomes inactive
b.
Having the greenhouse tightly closed for 24 hours or more after treatment
d.
Having the greenhouse tightly closed for 30 minutes following application
 

15. 

The term "forcing" floriculture crops generally refers to:
a.
The growing of plants at times other than their natural outdoor growing season
c.
Growing plants in pots at the time that they naturally grow outdoors
b.
Forcing the rootings of cuttings on plants that normally will not root
d.
Use of chemicals to change or alter colors of blooms
 

16. 

Pollination occurs when:
a.
A sperm and egg unite
c.
A pollen grain touches the stigma
b.
Pollen is released from the flower
d.
A pollen grain touches the ovary
 

17. 

The length of time that it takes to produce a greenhouse snapdragon crop varies with the season within the following range:
a.
5 to 15 weeks
c.
11 to 23 weeks
b.
6 to 8 weeks
d.
23 to 46 weeks
 

18. 

"Closing the sale" means:
a.
Answering questions and concerns of the customer so as not to waste time
c.
Helping the customer to make a decision
b.
Taking the money
d.
Asking for delivery instructions
 

19. 

Enrichment of the atmosphere with CO2 in the production of greenhouse tomatoes nearly doubles yields of many greenhouse tomato cultivars.  To how many ppm should the atmosphere be enriched?
a.
300
c.
800
b.
600
d.
1200
 

20. 

The following are fungus diseases of plants:
a.
mildew, fusarium, damping off
c.
Odema, mildew, damping off
b.
Aster yellows, mildew, botrytis
d.
Thrips, mildew, creeping crud
 

21. 

The principles of arranging which involve the repetition of shapes, form, and/or lines; through a progression of small, medium, and large flowers; through a progression of color from light to dark; or through a continuous line movement usually made up of curves is called:
a.
accent
c.
harmony
b.
rhythm
d.
balance
 

22. 

A chemical disinfectant used to clean benches, pots, and watering devices is:
a.
Malathion
c.
Off-shoot
b.
LF-10
d.
Anthracnose
 

23. 

When adjusting temperature up or down in the greenhouse, the change should be made as follows:
a.
2o F in a 48 hour period
c.
6o F in a 12 hour period
b.
4o F in a 48 hour period
d.
8o F in a 6 hour period
 

24. 

Four major floral wire services are:
a.
FTD, AFS, Teleflora, Florafax
c.
American Express, Western Union, FTD, Teleflora
b.
FSI, AFS, Florafax, FBI
d.
FBI, OPEC, FTD, Teleflora
 

25. 

The following cut flower should be stored at a temperature above 50° F:
a.
Rose
c.
Chrysanthemum
b.
Carnation
d.
Orchid
 

26. 

Which foliage plant is a vine?
a.
Rubber plant
c.
chrysanthemum
b.
Peperomia obtusifolia
d.
hedrahelix
 

27. 

A tomato plant is at the right growth stage for planting in a greenhouse bed when its shape is:
a.
Pyramidal
c.
Square
b.
Spherical
d.
Rectangular
 

28. 

You would use a Solu-bridge to:
a.
Test for salt content in a medium
c.
Check for media pH
b.
Inject fertilizer into a watering system
d.
Determine soil water content
 

29. 

Commercial flower crops are sometimes watered to cause leaching.  This means:
a.
Watering only to wet the top 1/3 of soil
c.
Syringing the leaves (foliage) of the plant
b.
Watering in sufficient quantities to remove excess soluble salts from the soil by drainage through the soil media
d.
Watering by subsurface methods, that is, from the bottom of the pot
 

30. 

Brown discs on the stems and leaves of a plant indicate:
a.
Aphids
c.
Scales
b.
Fungus Gnats
d.
Slugs
 

31. 

When using spray chrysanthemum for a corsage, the appropriate wiring technique is called:
a.
Piercing
c.
Hookwire
b.
Spiral
d.
Clutchwire
 

32. 

Monochromatic harmony is produced by:
a.
Using various shades, tints, and tones of one color
c.
Using colors which are directly opposite each other on the color wheel
b.
Using two or three colors near each other on the color wheel
d.
None of the above
 

33. 

A Christmas crop of poinsettias should be showing some color by:
a.
Thanksgiving Day
c.
November 1
b.
September 15
d.
October 15
 

34. 

When designing a floral arrangement, after the container has been prepared, one should:
a.
Establish the focal point
c.
Drain out all the water
b.
Begin filling in
d.
Establish the lines
 

35. 

Which foliage would be most appropriate in constructing a boutonniere?
a.
Salal (lemonleaf)
c.
Baker Fern (Leatherleaf)
b.
White Pine
d.
Huckleberry
 

36. 

Why is the spacing of chrysanthemum cuttings in the bench so important?
a.
Size of bloom, spray form, weight and strength of stem are affected by spacing
c.
If the cuttings are planted too close, the roots will intertwine and transmit virus diseases
b.
If the leaves of the cuttings touch, the plants will die because of competition for light
d.
If the cuttings are planted too far apart pollination cannot take place
 

37. 

Which cut flower is likely to turn brown if touched?
a.
Gladiolus
c.
Gardenia
b.
Tulip
d.
Rose
 

38. 

The primary advantage of mist propagation is that it:
a.
Keeps the plant material uniformly moist
c.
Is fully automatic and requires no attention
b.
It keeps the plant material cool
d.
Does not wash nutrients out of the medium
 

39. 

Apical meristem propagation is used in order to:
a.
Rapidly reproduce certain kinds of ferns
c.
Produce plants free of bacterial and Verticillium blights
b.
Produce plant material free of virus diseases
d.
All of the above
 

40. 

The stomata of a plant leaf:
a.
Must open to allow light to reach the chlorophyll for photosynthesis
c.
Regulate nutrient entry from foliar fertilizer applications
b.
Regulate water vapor loss from the plant
d.
Prevent disease organisms from entering the plant
 

41. 

Energy saving measures that are economically effective in greenhouses throughout the U.S. are the use of:
a.
Double glazing, thermal blankets
c.
Coal instead of oil as a fuel
b.
Dark glazing, thermal electric blankets, solar heating
d.
Split night temperatures
 

42. 

Fertilization of Easter Lilies:
a.
Is not necessarily due to sufficient nutrient levels in the bulb
c.
Should be high in phosphorous and low nitrogen
b.
Generally begins when top growth is 1-1/2 inches high by alternating between potassium nitrate and calcium nitrate
d.
Should be initiated immediately after potting
 

43. 

Gladioli spikes are:
a.
Seldom used by florists
c.
Come in only two colors
b.
Poor keepers
d.
Considered Athe mainstay@ of the funeral business
 

44. 

The width of the bow used in a corsage should be __________ (than) (as) the fullest part of the corsage.
a.
Wider
c.
Slightly narrower
b.
Same width
d.
11/2 times wider
 

45. 

The correct stage at which to put forced azaleas into a lighted storage at 46o F for holding up to 2 weeks is:
a.
When the first bloom is fully open
c.
When the flower buds have begun to swell
b.
When color is barely showing in the whole flower cluster
d.
When the vegetative shoots are 11/2 inches long
 

46. 

Greenhouses ranges that produce a combination of potted plants and foliage plants and bedding plants are usually located within ________ miles of their major markets.
a.
50
c.
100-150
b.
50-100
d.
200
 

47. 

A ten-week group variety of chrysanthemum means:
a.
They should be ten weeks old when potted
c.
They bloom ten weeks after the start of short days (long nights)
b.
They will bloom ten weeks after sticking the cutting
d.
Cuttings of this variety should root in ten weeks
 

48. 

When growing floriculture crops and discussing the number of Abreaks@ on a plant, we are talking about:
a.
The breaking open of flowers as they begin to bloom
c.
Stems that break or bend due to weakness
b.
Vegetative buds that begin to develop into new shoots
d.
Broken or ruptured areas on a stem due to excess fertilizer and fast growth
 

49. 

Carbon dioxide enrichment is used in commercial greenhouses:
a.
To lessen the spread of bacterial diseases
c.
To partially compensate for low light levels
b.
To aid in temperature control
d.
To increase the air supply for the employees
 

50. 

Cuttings of potted chrysanthemums are planted at an angle to encourage:
a.
Increased branching
c.
A more rounded plant
b.
Larger blooms
d.
Earlier flowering
 



 
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