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