LOUISIANA HORTICULTURE LICENSE REVIEW EXAM
SOLVED #10
A plant's scientific name of a plant is composed of _________ and _________. - correct
answer genus and species
Alba is a term that describes a plant as _________. - correct answer white
Triacanthos describes a plant that is _________. - correct answer three spined
The functions of the root system are: - correct answer anchorage, absorption,
conduction and
Storage
The tap root could be described as: - correct answer a fleshy food storing organ
When a person is preparing to transplant a plant: - correct answer expose the roots to
little air as possible
Plants that are root bound in their containers should: - correct answer coiled roots
should be straightened and pruned
The xylem is resonsible for: - correct answer transporting water and minerals from the
roots upward through the plant
An example of a monocot plant would be _________. - correct answer corn
If the cambium layer and vascular bundles are damaged: - correct answer the plant
could die
Girdling of a plant can be described as: - correct answer damage to the plants food
supply pipeline
A node is considered to be: - correct answer an area on a stem where the leaves
emerge
Tulips develop each spring from _________. - correct answer bulbs
A plant that developes from rhizome would be _________. - correct answer cannas
Potatoes are propogated from _________. - correct answer tubers
When a plant a "suckers" it means that a new shoot will develops from the _________. -
correct answer roots
,In Louisiana, spring flowerihg bulbs are usually planted from _________ to _________.
- correct answer October to December
Amaryllis bulbs are usually planted _________. - correct answer during fall
The term "venation" is a term used to describe a plants _________. - correct answer
vein distribution
A leaf gives off water into the atmosphere through a process called _________. -
correct answer transpiration
If transpiration is more rapid than absorption in a plant: - correct answer the plant will
show signs of wilting
Transpiration in a plant depends on: - correct answer water pressure should be lower in
the top of the plant
The pistil is the: - correct answer female part of the plant
Ferns reproduce from single cell structures called _________. - correct answer spores
The highest priority of food produced by leaves is to feed _________. - correct answer
flowers
A primary element used for plant growth would be _________. - correct answer urea
Overall yellowing of the plant beginning at the bottom of the plant could mean
_________. - correct answer nitrogen deficiency
Spindly growth, low flower and fruit production, dark green leaves with reddish overcast
could mean _________. - correct answer phosphorous deficiency
Slow growth, scorched leaves and shriveled fruit on a plant could mean _________. -
correct answer potassium deficiency
Light green leaves with leaf margins turning upward are symptoms of _________. -
correct answer calcium deficiency
A 50 poind bag of 13-13-13 would contain how many pounds of nitrogen? - correct
answer 6.5
A 50 pound bag of 20-15-10 would contain how many pounds of phosphorus? - correct
answer 7.5
Resin coated materials, such as osmocote, fertilize depends on what factor to release
nutrients: - correct answer soil moisture
, Fertilizing in early or late fall: - correct answer is a poor practice because it could cause
cold damage
Exposing plants to low light intensity will: - correct answer limit photosynthesis
Roots dying from over watering could be caused by _________. - correct answer lack of
oxygen
Water softeners should never be used for irrigation because the _________ may
replace essential nutrients causing deficiencies. - correct answer (Na) ions
Due to slow permeability of clay, how many inches of water must be used on a plant
with an 18" root depth? - correct answer 3 inches
The field capacity for water in loamy soil is approximately _________. - correct answer
15-25%
Which side of a building has the coolest growing temperature? - correct answer north
Most warm season plant seeds need this minimum temperature to germinate: - correct
answer greater than 49 degrees F
This zone has an average minimum temperature of 20-25 degrees F: - correct answer
9a
Plants exposed to calm, clear nights can give off enough heat to lower their temperature
below freezing even though the surrounding air is 32 degrees F. This kind of freezing is
called _________. - correct answer radiation
The optimum temperature suitable for growth of temperate plants is: - correct answer
77-95 degrees f
Avoiding practices such as late pruning and late fertilization with nitrogen will help to
prevent: - correct answer cold weather damage
Hot weather effects on plants grown in dark containers usually result in: - correct
answer stunted growth on the side exposed to the sun
Nurseries' greatest challenges are providing plants that: - correct answer grow well in
their area
The mud-pie test is used: - correct answer to determined the moisture content of the soil
The two forces that hold water in the soil are _________ and _________. - correct
answer adhesion and cohesion
SOLVED #10
A plant's scientific name of a plant is composed of _________ and _________. - correct
answer genus and species
Alba is a term that describes a plant as _________. - correct answer white
Triacanthos describes a plant that is _________. - correct answer three spined
The functions of the root system are: - correct answer anchorage, absorption,
conduction and
Storage
The tap root could be described as: - correct answer a fleshy food storing organ
When a person is preparing to transplant a plant: - correct answer expose the roots to
little air as possible
Plants that are root bound in their containers should: - correct answer coiled roots
should be straightened and pruned
The xylem is resonsible for: - correct answer transporting water and minerals from the
roots upward through the plant
An example of a monocot plant would be _________. - correct answer corn
If the cambium layer and vascular bundles are damaged: - correct answer the plant
could die
Girdling of a plant can be described as: - correct answer damage to the plants food
supply pipeline
A node is considered to be: - correct answer an area on a stem where the leaves
emerge
Tulips develop each spring from _________. - correct answer bulbs
A plant that developes from rhizome would be _________. - correct answer cannas
Potatoes are propogated from _________. - correct answer tubers
When a plant a "suckers" it means that a new shoot will develops from the _________. -
correct answer roots
,In Louisiana, spring flowerihg bulbs are usually planted from _________ to _________.
- correct answer October to December
Amaryllis bulbs are usually planted _________. - correct answer during fall
The term "venation" is a term used to describe a plants _________. - correct answer
vein distribution
A leaf gives off water into the atmosphere through a process called _________. -
correct answer transpiration
If transpiration is more rapid than absorption in a plant: - correct answer the plant will
show signs of wilting
Transpiration in a plant depends on: - correct answer water pressure should be lower in
the top of the plant
The pistil is the: - correct answer female part of the plant
Ferns reproduce from single cell structures called _________. - correct answer spores
The highest priority of food produced by leaves is to feed _________. - correct answer
flowers
A primary element used for plant growth would be _________. - correct answer urea
Overall yellowing of the plant beginning at the bottom of the plant could mean
_________. - correct answer nitrogen deficiency
Spindly growth, low flower and fruit production, dark green leaves with reddish overcast
could mean _________. - correct answer phosphorous deficiency
Slow growth, scorched leaves and shriveled fruit on a plant could mean _________. -
correct answer potassium deficiency
Light green leaves with leaf margins turning upward are symptoms of _________. -
correct answer calcium deficiency
A 50 poind bag of 13-13-13 would contain how many pounds of nitrogen? - correct
answer 6.5
A 50 pound bag of 20-15-10 would contain how many pounds of phosphorus? - correct
answer 7.5
Resin coated materials, such as osmocote, fertilize depends on what factor to release
nutrients: - correct answer soil moisture
, Fertilizing in early or late fall: - correct answer is a poor practice because it could cause
cold damage
Exposing plants to low light intensity will: - correct answer limit photosynthesis
Roots dying from over watering could be caused by _________. - correct answer lack of
oxygen
Water softeners should never be used for irrigation because the _________ may
replace essential nutrients causing deficiencies. - correct answer (Na) ions
Due to slow permeability of clay, how many inches of water must be used on a plant
with an 18" root depth? - correct answer 3 inches
The field capacity for water in loamy soil is approximately _________. - correct answer
15-25%
Which side of a building has the coolest growing temperature? - correct answer north
Most warm season plant seeds need this minimum temperature to germinate: - correct
answer greater than 49 degrees F
This zone has an average minimum temperature of 20-25 degrees F: - correct answer
9a
Plants exposed to calm, clear nights can give off enough heat to lower their temperature
below freezing even though the surrounding air is 32 degrees F. This kind of freezing is
called _________. - correct answer radiation
The optimum temperature suitable for growth of temperate plants is: - correct answer
77-95 degrees f
Avoiding practices such as late pruning and late fertilization with nitrogen will help to
prevent: - correct answer cold weather damage
Hot weather effects on plants grown in dark containers usually result in: - correct
answer stunted growth on the side exposed to the sun
Nurseries' greatest challenges are providing plants that: - correct answer grow well in
their area
The mud-pie test is used: - correct answer to determined the moisture content of the soil
The two forces that hold water in the soil are _________ and _________. - correct
answer adhesion and cohesion
