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2014 Nursery/Landscape Exam
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Multiple Choice
1.
Scientific names generally consist of two words, the first being the genus and the second being
the:
a.
Species
b.
Family
c.
Order
d.
Cultivar
2.
The halves or thick portions of a seed that contain the tissue used as food by the seedling in its
early growth is the:
a.
Cotyledon
b.
Gymnosperm
c.
Monoecious
d.
Dioecious storage tissue
3.
Plants tend to grow towards the light sources. This is known as:
a.
Photosynthesis
b.
Transpiration
c.
Respiration
d.
Phototropism
4.
Compacted and poorly drained soils contain little ______________, a gas that tree roots need to
survive and grow.
a.
Zenom
b.
Carbon dioxide
c.
Oxygen
d.
Hydrogen
5.
Failure to firm down the soil around a newly planted tree or shrub can result in air pockets. This
may cause:
a.
Drying of plant roots
b.
Soil heaving in winter
c.
Disease
d.
Over watering problems
6.
Which of the following is NOT derived from naturally occurring rocks or minerals?
a.
Perlite
b.
Vermiculite
c.
Peat moss
d.
Pea gravel
7.
A complete fertilizer contains nitrogen, phosphorus and:
a.
K (calcium)
b.
C (calcium)
c.
P (potassium)
d.
K (potassium)
8.
A type of propagation in which the new plant remains attached to the mother plant until its root
system is established is called:
a.
Layering
b.
Stem cutting
c.
Cleft grafting
d.
Root cutting
9.
What is the recommended pH range for azaleas?
a.
4.5-5.5
b.
6.0-6.5
c.
6.5-7.0
d.
7.0-7.5
10.
Which of the following propagation methods usually produces the greatest amount of genetic
variation in the offspring?
a.
grafting
b.
tissue culture
c.
division
d.
seeds
11.
Which of the following is true about grafted plants?
a.
cambium tissues of the root stock and scion unite
b.
scion and rootstock are invested
c.
moisture is supplied through the application of sphagnum moss
d.
the scion must be taken from stems in full leaf
12.
A systemic insecticide refers to an insecticide that __________________________.
a.
kills on contact
b.
is absorbed through the roots and leaves of a plant
c.
is applied as a fumigant
d.
does not come in a granular form
13.
When mowing turf, it is recommended that no more than _______ of the leaf blade be removed
at each cutting.
a.
one half
b.
two thirds
c.
one third
d.
one eighth
14.
A layer of partially decomposed stems, roots and leaves of grass which develops above the soil
surface in the law is called ________________.
a.
mineral matter
b.
inorganic matter
c.
mulch
d.
thatch
15.
Plants maintain a healthy heat and moisture balance through ______________________.
a.
photosynthesis
b.
respiration
c.
hybridization
d.
transpiration
16.
Young seedlings that rot at ground level and fall over and die are affected by _____________.
a.
mosaic
b.
aster yellows
c.
damping off
d.
blight
17.
Which of the following best describes seed scarification?
a.
placing seed capsules in the sun for natural drying
b.
plating seeds in a nursery flat to a depth of 2 times the seed diameter
c.
removing some of the seed coat by using a file, sandpaper or an acid solution
d.
using a dibble to spot off newly planted seedlings
18.
The __________ is the sticky upper portion of the pistil that collects and holds pollen.
a.
anther
b.
stigma
c.
style
d.
filament
19.
The terms triploid, diploid and haploid refer to the ____________________.
a.
a number of flowers per stem
b.
formation of leaves
c.
number of bud breaks expected after pruning
d.
number of chromosomes
20.
The openings around soil particles that hold air or water are called _______________.
a.
water sinks
b.
pore spaces
c.
moisture pores
d.
moisture films
21.
Natural soil is arranged in layers referred to as __________________.
a.
soil horizons
b.
soil rings
d.
soil texture
d.
sand, silt and clay
22.
Which of the following elements causes vegetative growth and often suppresses flower
production?
a.
calcium
b.
phosphorous
c.
potassium
d.
nitrogen
23.
What part of the leaf opens and closes the stoma allowing the plant to breathe, transpire give
off moisture and exchange gases?
a.
guard cells
b.
epidermis
c.
leafididimus
d.
petiole
24.
Most plants grow best in soil with a pH of ______________.
a.
6.0 to 7.0
b.
7.0 or higher
c.
4.0 to 5.5
d.
3.6 to 4.0
25.
Topsoil containing equal percentages of sand, silt and clay is called _____________.
a.
an organic soil
b.
loam
c.
a mucky soil
d.
sandy silt clay
26.
Larger nursery pots are measured by the:
a.
gallon
b.
ounce
c.
inch
d.
height
27.
Water _________________ to help reduce disease in nursery crops.
a.
late in the afternoon
b.
early in the day
c.
at night
d.
with overhead sprinklers
28.
The right conditions for seed germination are light or darkness, __________, __________, and
__________.
a.
seeds, pollination, water
b.
soil, hybridization, DNA
c.
water, oxygen, favorable temperatures
d.
carbon dioxide, pistil, xylem
29.
As roots grow, their tips are protected from course soil. This is accomplished by a mass of cells
called the _________________.
a.
root cap
b.
secondary root
c.
adventitious roots
d.
basal rooters
30.
the flower typically consists of four different parts, sepals, petals, and ___________ and
____________.
a.
cells, pedicel
b.
corolla, xylem
c.
corolla, pistil
d.
pistil, stamens
31.
The collection of petals on a flower is referred to as the
a.
corolla
b.
inference
c.
ovary
d.
solitary flowers
32.
To saw a four-inch limb off a tree, be sure to make the _______________ cut first to prevent
stripping of the bark on the tree trunk.
a.
flush
b.
top
c.
over
d.
under
33.
A multi-strategy to economically maintain/control pests below levels of significant exonimc and
environmental damage is called:
a.
integrated plant management
b.
integrated pest management
c.
integrated plant material
d.
integrated pest material
34.
The scientific botanical nomenclature of plants includes the:
a.
Genus, species and variety
b.
Genus, kingdom and species
c.
Species, variety and cultivar
d.
None of the above
35.
An arboretum is:
a.
a true botanical garden with plant co0llection habitat
b.
a horticultural garden with many horticultural varieties
c.
a collection of trees arranged in a naturalized fashion
d.
none of the above
36.
Oftentimes gardeners will remove the dying flowers from annuals. This is known as
a.
pruning
b.
pinching
c.
dead heading
d.
budding
37.
Rejuvenation pruning involves:
a.
cutting 1/3 of the shrub canes to the ground
b.
cutting all shrub canes within 6 inches of the ground
c.
cutting 1/3 of the canes each year for three years
d.
cutting 1/3 of the length of all branches
38.
The function of the anther in a flower is to:
a.
attract insects
b.
produce the eggs
c.
produce the pollen
d.
catch the pollen
39.
Perlite is:
a.
dehydrated remains of acid bog plants
b.
a gray-white material of volcanic origin
c.
a partially decomposed vegetation that has been preserved underwater
d.
a very light, expanded material with a neutral pH
40.
The first part of the new plant to emerge from the seed is the:
a.
endosperm
b.
leaves
c.
root
d.
stem
2014 Nursery/Landscape Exam Key
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