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2017 National FFA Floriculture Career Development Event General Knowledge Exam
Terms in this set (50)
The following is NOT a characteristic of an insect:
The following is NOT used to measure greenhouse crop nutrient levels:
Light intensity can be measured in units of:
A ___________ results from crossing parents of different genotype for a trait.
The ___________ transports water and nutrients from the roots to other parts of the plant.
Crassula argentea is the botanical name of the Jade Plant. Crassula is the ___________ of the plant.
Indolebutyric acid (IBA) is commonly used to:
promote rooting of cuttings
Signal words on labels alert the user to the toxicity of a pesticide. Which of the following words is NOT used as a signal word?
Which of the following flower parts is contained in the pistol?
_________________ is the process of softening or breaking a seed coat in order to overcome seed dormancy.
Prior to transplanting, seedlings should be____________.
In order to lower the pH of a soil, materials containing ______________ are used.
Which of the following nutrients would be retained more by a root medium with high cation exchange capacity (CEC)?
Soluble salts in medium is measured by electrical conductivity (EC). An appropriate EC range for flowering potted crops using the pour through extraction method is:
1.0mS/cm to 4.6mS/cm
Soilless medium can be amended with which of the following materials prior to potting to provide magnesium?
The Worker Protection Standards (WPS) developed for agriculture pesticides was implemented by what government agency?
Environmental Protection Agency
Cytokinins are responsible for cell division and differentiation in the plant. Cytokinins are produced in what plant part?
Which of the following auxins is naturally produced in the plant?
indole-3-acetic acid (IAA)
Carbon is an essential plant element. Plants obtain carbon from carbon dioxide gas (CO2). Air on the average contains what percent CO2?
A plant's growth response to temperature is called:
Which of the following is not an advantage of hydroponics?
Yield per unit area is reduced since plants may be planted closer together
Allelopathy is a plant phenomenon that does the following to plants:
Production of a chemical compound by one plant that slows down or stops the growth of another plant
Pesticides can be purchased for use in the greenhouse as a wettable powder (WP) or as an emulsifiable concentrate (EC). Which of the following is true about these two pesticide formulations?
WP are diluted (dissolved) in water and can settle during application while EC are suspended in water and do not settle during application
Tulle in florist work is:
Florist netting that can add color, texture, and support for some flowers
The country that is the leading exporter of cut flowers to the United States floral industry is:
The climatic conditions that are needed forcarnations to be grown successfully as a cut flower include?
high light intensity, mild climate requiring minimal amount of protection, uniform temperature and day length
In growing Chrysanthemums as cut flowers the plant requires which of the following conditions to maintain a vegetative state of growth?
Day length greater than 14.5 hours growing at 60 degrees
The advantages of an ebb and flood irrigation system in the greenhouse are:
Labor savings, reduced water and nutrient use, and lower pesticide use (all of the above)
Which of the following is not a plant hormone that can be used as plant growth regulator?
The best root medium pH for a majority of spring bedding plants, but not including petunias or geraniums, is:
5.5 to 6.5
In grafting, such as for grafted tomato transplants,
the scion is the top part of the graft and the rootstock is the lower part
The pistol is
the female part of the flower
The pH of the root medium indicates to a greenhouse grower its
hydrogen ion concentration
On a financial planning sheet, the costs of the plant materials (i.e. purchase cost of seeds, cuttings, bulbs, or other plant propagule) would be examples of:
A 6-inch 'azalea pot' has an inside rim diameter of ____(i)____ inches and a depth of ____(ii)____ inches.
(i) 6-inches, (ii) 4.5-inches
A. produces sugars in the plant
B. occurs only during the night
C. releases oxygen to the atmosphere
D. none of the above
none of the above
What type of environment do poinsettias require to produce red bracts?
short day photoperiod
Botanical names are written in:
The greenhouse insect pest problems of aphids can be effectively managed by using:
Biological control such as lady beetles, chemical control such as the use of an insecticidal soap, and the cultural control of washing them off the plant with a strong steam of water (all of the above)
In order to preserve foliage in a more natural, pliable state, place stems in:
Which glazing material for greenhouses allows the greatest light transmittance?
To pasteurize a container root medium, heat it to:
180 degrees for 30 minutes
A guideline for estimating the size for a floral design for a defined space is known as
Rule of Thirds
The term variegated means?
leaves have patches, stripes, or marks of different colors
Systematic dyeing occurs by plants absorbing color through the ___________.
A freesia is an example of a _____________.
___________ is the single most important element to keep flowers fresh after delivery from a supplier.
The three primary ingredients in floral preservatives are sugar, ________, and an acidifier.
The sense of stability in a design both physically and visually known as:
A floral design with a strong sense of _________ shows an organization of elements so they appear to belong together.
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