9. Most house plants, except cacti, prefer a highly organic and
Correct : C. Acidic growing medium
10. Ficus pimula is a
Correct : C. Creeper
11. Which of the following tree is commonly used in the landscape of arid zone?
Correct : D. Prosopis juliflora
12. Which of the following shrubs has white fragrant flowers?
Correct : B. Gardenia florida
13. Commercial flower crops are sometimes watered to cause leaching. This means:
Correct : B. Watering to remove excess soluble salts from the growing medium
14. Most grass species utilized for turf are characterized by:
Correct : D. All of above
15. Which of the following trees change foliage colour during winter?
Correct : C. Sapium sebeferum
16. Which of the following plants is known as dessert saroo?
Correct : D. Casuarina equistifolia
17. Which of the following climber belongs to family oleaceae?
Correct : D. Jasminum grandiflora
18. Tecoma stans is a
Correct : A. Shrub
19. Light intensity is expressed as:
Correct : A. Foot-candles
20. The purpose of staking is to
Correct : C. Prevent wind injury to branches
21. Japanese style of floral arrangement is known as:
Correct : C. Ikebana
22. Dacca is a selected variety of:
Correct : C. Turfgrass
23. Growing medium kept too wet will deprive the plant:
Correct : C. Oxygen
24. The interrelationship of size with floral arrangement to its surroundings is:
Correct : C. Scale
25. A climbing plant with woody stem is called
Correct : A. Vine
26. Hard, thorny structures which protect the buds of woody plants during winter, are
termed as:
Correct : B. Scales
27. A common example of incomplete flower is:
Correct : D. All of the above
28. To preserve the germination ability of most seeds, store them in a:
Correct : B. Cool, dry environment
29. The soil pH level primarily controls:
Correct : D. Availability of essential plant nutrients
30. Which of the following is a shade-loving flower?
Correct : D. Impatiens
31. Plants which flower on the previous season growth:
Correct : B. Does not need to be pruned
32. The most common summer cooling system in greenhouses is:
Correct : D. Fan-and-pad evaporative cooling
33. All of the following are bulbous and tuberous-rooted plants except:
Correct : D. Snapdragons
34. involves incorporating water soluble fertilizer into the irrigation
systems of greenhouse and nursery crops.
Correct : C. Fertigation
35. Which of the tree bears red colour flowers?
Correct : A. Erythrena subrosa
36. Lack of early spring flowering from tulip bulbs planted outdoors is due to:
Correct : B. Lack of winter cooling
37. A leaf with parallel venation:
Correct : B. Is a monocot
38. When making hand-tied bouquets, the stems should be positioned:
Correct : D. In a spiraling manner
39. Which of the following is not a method for sterilizing plant growing medium?
Correct : D. Keeping the growing medium moist for 6 to 7 days
40. Which of the following is not among the major principles of design?
Correct : D. Price
41. The showy red, pink, or white portion of the poinsettia are:
Correct : B. Bracts
42. A technique to produce well branched, compact plants with many flowers is:
Correct : C. Pinching
43. Which of the following is a member of the Dianthus family?
Correct : D. Carnation
44. Which of the shrub bears red colour flowers
Correct : C. Jatropha metrifeda
45. The acceleration of flowering by manipulating environmental conditions is known as:
Correct : B. Forcing
46. Which shrub has white colour flowers with fragrance
Correct : D. Jasminum sambac
47. Peat is often mixed into the growing medium of container plants because it:
Correct : B. Has good air and water holding capacities
48. The two most practical means of the home owner to control insects and diseases are:
Correct : B. Mechanical and biological
49. In temperate climates, pruning should not be done near the end of the summer because:
Correct : A. New growth will not harden before winter
50. A plant hardy in tropical zone will also be hardy in zone:
Correct : B. Subtropical
51. A person who designs, establishes, and maintains small scale landscape project, is:
Correct : C. The garden center manager
52. During dry periods, landscape plants should be:
Correct : A. Watered lightly every day
53. Both asphalt and concrete are used for hard surfacing driveways. Which of the
following is true for asphalt?
Correct : C. Asphalt does not need a porous base material
54. Pinus halipensis is very healthy growing in:
Correct : C. All of the above zones
55. The design principle of total compatibility of all parts of an arrangement with eachbother is:
Correct : C. Harmony
56. For optimum vase life, most cut flowers should be stored at temperatures close to:
Correct : A. 40 ºF
57. Which of the following statements is true.
Correct : B. Perennials are good plants for the garden with low maintenance cost.
58. Which of the following perennials is low and spreading type?
Correct : A. Vinca
59. Which of the following perennials has more varieties?
Correct : A. Geranium
60. Which of the following perennials is hardy and having blue and lavender colour
flowers?
Correct : A. Verbena
61. The major auxin produced in plants is:
Correct : C. Indole-3-acetic acid (IAA)
62. When cells are turgid, they are:
Correct : C. Inflated
63. Which of the following statements is true?
Correct : B. Annuals usually bloom only once each season.
64. Which of the following statements is true?
Correct : D. Annuals are used all of above purposes.
65. Which of the following statements is true?
Correct : D. Verbena is used for bedding purpose.
66. Pansy is very popular annual due to its:
Correct : D. Mix colour flowers bedding plant.
67. Which of the following annuals is planted as vine?
Correct : B. Ipomea
68. Which of the following annuals is used as ground cover?
Correct : A. Musemberanthemum
69. Which of the following annuals is used as rock garden?
Correct : D. Morning glory
70. Which of the following annuals is used as foliage beauty?
Correct : A. Kochia
71. The average humidity percentage recommended for interior plants is:
Correct : B. 40 to 70%
72. The bract that encloses a flower cluster is a .
Correct : B. Spathe
73. Broad-leave evergreens such as Ficus bengalensis and Alstonia schularis should be
fertilized in:
Correct : A. Early spring
74. A major problem in standard carnation production resulting in asymmetrical flowers
is:
Correct : C. Calyx splitting
75. is generally added to water when processing flowers in a retail floral shop.
Correct : C. Biocide
76. The genus and species name for the ponytail palm is:
Correct : A. Beaucarnea recurvata
77. Training plants into three-dimensional ornamental forms, such as animals, is called:
Correct : A. Topiary
78. Clay soils require:
Correct : A. A longer time for absorption of irrigation water than sandy soils
79. Plants that have been clipped or pruned into two-dimensional forms are:
Correct : A. Espalier
80. A transplanted tree or shrub should be set into the ground:
Correct : D. At the same depth at which it was originally growing
81. The main commercial method for propagating African violets is by:
Correct : D. Leaf petioles
82. Damping-off is caused by:
Correct : A. Fungi
83. Which of the following is a group of terms related to landscape design principles?
Correct : B. Focalization, proportion, simplicity
84. Plants usually do not grow well in poorly drained soils because:
Correct : A. Oxygen content is low in poorly drained soils
85. To make the living area of a landscape appear larger, a designer should include plants
that feature:
Correct : B. Cool-colored flowers such as blues, purples, lavenders
86. Which of the following turf areas is mowed to the lowest height?
Correct : D. Golf green
87. In plants, __________ is the process of converting stored energy into energy for plant
growth.
Correct : C. Respiration
88. A landscape designer uses many __________ in developing the preliminary design for a
project.
Correct : B. Bubble diagrams
89. An example of an organic material is __________.
Correct : C. Leaf mold
90. The loss of water in the form of vapor from the surface of plant leaves is referred to as:
Correct : A. Transpiration
91. The basic underlying principle of using a mist propagation system is that it:
Correct : D. Increases humidity around the cutting and reduces transpiration
92. Low-growing landscape plants should:
Correct : A. Be placed in front of intermediate growing plants
93. In a landscape design, properly located plants and structures.
Correct : A. Can reduce heat intensity
94. A shade loving border plant is:
Correct : B. Impatiens
95. A plant that dies to the ground at the end of each growing season but comes back from
the same root stubs year after year is most accurately described as:
Correct : D. Herbaceous perennial
96. Two basic types of pruning are heading-back and thinning-out. Which of the following is true about these pruning methods?
Correct : B. Thinning cuts are made close to a main branch or ground and few axillary buds are left.
97. Lowering the soil grade around a tree removes many of the tree’s __________ roots.
Correct : C. Feeder
98. Water availability, temperature extremes, and __________ should be considered when
selecting trees for the landscape.
Correct : C. Soil type
99. Lawn sprinkler systems are installed so as to provide even coverage. It is accomplished
by:
Correct : A. Spacing the heads so that each sprinkler sprays to the next sprinkler
100. Callus is a term usually referring to:
Correct : B. The first tissue develops on a cut surface just before the root formation iniates.