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Horticulture 101 PSU
Exam 2 (New Set)
259
Other
Undergraduate 2
10/03/2013

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Cards

Term
Definition
What are 5 reasons for classifying plants?
Term
Definition
What were 2 categories used for the classification of plants in early systems?
Term
Definition
What are 8 ways scientists group plants for classification?
Term
Definition
Why were Latin polynomials and common names found to be inadequate?
Term
Definition
What group is responsible for the naming of plants today?
Term
Definition
Give an example of the binomial nomenclature system.
Term
Definition
List the 9 categories used for botanical classification and provide and explanation for each.
Term
Definition
Why is cultivar identification important, and what are some ways commonly used to distinguish between cultivars?
Term
Definition
Provide the major and minor taxa of the "Delicious" apple.
Term
Definition
Name and explain the three major phases of a plant's life cycle.
Term
Definition
What is the main function of a leaf?
Term
Definition
What are the 2 major photosynthetic enzymes found in plants?
Term
Definition
List the 9 major parts of a simple leaf.
Term
Definition
Distinguish between a leaf and a leaflet.
Term
Definition
Give 2 examples of a modified leaf.
Term
Definition
What are the 4 major functions of a stem?
Term
Definition
List the 8 parts of the stem.
Term
Definition
What are 4 examples of a modified stem?
Term
Definition

What are the 3 major functions of a root?

Term
Definition
Draw a root system and designate the area of differentiation, area of cell elongation, and area of cell division.
Term
Definition
What are 2 types of root systems?
Term
Definition
Provide an example of a modified root.
Term
Definition
What are the 3 major functions of flowers?
Term
Definition
Provide the 4 major parts of a typical flower and, where applicable, give additional parts associated with each.
Term
Definition
What are 2 types of fruits?
Term
Definition
Where is food stored in monocot and dicot seeds?
Term
Definition
Provide 3 factors required for seed germination to occur.
Term
Definition
What are the 3 phases of seed germination?
Term
woody plant
Definition
a plant that produces wood and has buds that survive above ground level during the winter months
Term
herbaceous plant
Definition
a plant that has soft stems
Term
annuals
Definition
plants that germinate from seed, grow to full maturity, flower, and produce seeds in one growing season
Term
biennials
Definition
plants that complete their life cycle in two growing seasons
Term
vernalization
Definition
the use of cold treatment to induce flowering
Term
perennials
Definition
plants that may be herbaceous or woody and live for more than two growing seasons
Term
deciduous plants
Definition
plants that lose their leaves during a portion of the year, usually the winter months
Term
evergreen plants
Definition
plants that retain their leaves all year
Term
monocots
Definition
plants that are characterized by one cotyledon (seed leaf) and have parallel leaf venation
Term
dicot
Definition
plant that is characterized by two cotyledons and has reticulate leaf venation
Term
taxonomy
Definition
the study of scientific classification and nomenclature
Term
taxon (taxa)
Definition
a taxonomic group name applied to organisms making a hierarchy within a formal system of classification
Term
gymnosperms
Definition
a class of plants that are primarily evergreen trees and usually have naked seeds borne in cones
Term
angiosperms
Definition
a class of flowering plants with seeds that develop in fruits
Term
apical meristem
Definition
the primary growing point of the stem
Term
senescence
Definition
a general failure of many biosynthetic reactions that precede cell death; the phase of plant growth that extends from full maturity to death and is characterized by chlorophyll, protein, or nucleic acid degradation as well as many other factors
Term
photosynthesis
Definition
a series of chemical reactions in which carbon dioxide and water are converted in the presence of light to carbohydreate and oxygen
Term
transpiration
Definition
the loss of water from the plant through the leaves in the vapor form
Term
stomata
Definition
the tiny openings in the leaf blade in which gases enter and exit the leaf
Term
respiration
Definition
the process by which stored organic materials are broken down into simple end products with a release of energy for plant growth and development
Term
cambium
Definition
the area is stem tissue where new plant cells are formed; located between the xylem and the phloem
Term
xylem
Definition
composed of tiny tubes that transport water and nutrients up from the roots to other parts of the plants
Term
phloem
Definition
composed of tiny tubes that transport manufactured food and carbohydrates from the leaves down to other parts of the plant such as the roots and shoots
Term
pith
Definition
the area located in the center portion of the stem where food and moisture are stored
Term
root hairs
Definition
single cells that absorb the greatest amount of water and minerals
Term
sepals
Definition
green leaf-like structures located beneath the petals
Term
calyx
Definition
term used to describe all the sepals on one flower
Term
petals
Definition
the brightly colored portion of the flower used to attract pollinators
Term
stamens
Definition
the male reproductive part of the flower
Term
pistil
Definition
the female reproductive part of the flower
Term
pollination
Definition
the transfer of pollen grains from one the anther to the stigma
Term
fertilization
Definition
occurs when the male sex cells fuse with the egg cell to form a new plant
Term
fruit
Definition
defined botanically as a mature ovary of a flowering plant or tree that includes the seed, its covering, and any parts closely connected to it
Term
seed
Definition
a ripened ovule, which consists of an embryo, stored food reserves, and a seedcoat or covering
Term
epigeous seed germination
Definition
when the hypocotyl elongates and brings the cotyledons above ground
Term
hypogeous seed germination
Definition
when the epicotyl emerges and the cotyledons remain below the soil surface
Term
Definition

T or F?

 

Removing dead or dying flowers from annuals so the plant will continue to bloom for a longer period of time is known as dead heading.

Term
Definition

T or F?

 

Vernalization is a cold treatment used to make certain plants flower.

Term
Definition

T or F?

 

Angiosperms usually have naked sseds born in cones.

Term
Definition

T or F?

 

Latin polynomial nomenclature is commonly used to classify plants.

Term
Definition

T or F?

 

Gymnosperms are a class of flowering plants that develop their seeds in fruits.

Term
Definition

T or F?

 

CO2 enters the leaf through tiny pores called stomata.

Term
Definition

T or F?

 

One of the major photosynthetic enzymes in plants is ribulose-diphosphatase.

Term
Definition

T or F?

 

Fertilization is the transfer of pollen grains from the anther to the stigma.

Term
Definition

T or F?

 

Pollination occurs when the male sex cell fuses with the egg cell to form a new plant.

Term
Definition

T or F?

 

A perfect flower contains both stamens and pistils.

Term
Definition

T or F?

 

An imperfect flower lacks either sepals and petals.

Term
Definition

T or F?

 

Dicots store their food in a specialized group of tissues called the endosperm.

Term
Definition

T or F?

 

Epigeous germination occurs when the epicotyl emerges and cotyledons remain below the soil surface.

Term
Definition

T or F?

 

Hypogeous germination occurs when the epicotyl emerges and cotyledons remain below the soil surface.

Term
Definition

T or F?

 

Monocots store their food in the cotyledons.

Term
D. All of the above
Definition

Why do we classify plants?

 

A. Overcome language barriers

B. Better understand the relationship between plants

C. Catalog plants

D. All of the above

Term
Definition

Most horticultural crops are in the division (phylum)

 

A. Bryophyta

B. Pteridophyta

C. Thallophyta

D. None of the above

Term
Definition

The annual rings of a tree are made up of

 

A. Xylem

B. Phloem

C. Pith

D. Cambium

Term
Definition

Which of the following is the major function of the pith?

 

A. Stores food and moisture in the center portion of the stem

B. Transports water and nutrients

C. Moves manufactured food and carbohydrates

D. All of the above

Term
Definition

Which of the following is the major function of the xylem?

 

A. Stores food and moisture in the center portion of the stem

B. Transports water and nutrients

C. Moves manufactured food and carbohydrates

D. All of the above

Term
Definition

Which of the following is the major function of the phloem?

 

A. Stores food and moisture in the center portion of the stem

B. Transports water and nutrients

C. Moves manufactured food and carbohydrates

D. All of the above

Term
Definition
The other term for a nonwoody plant is                  .
Term
Definition
Horticulturists are generally interested in the botanical variety, form, biotype, and clone. When any of these are intentionally cultivated, they are referred to as a           .
Term
Definition
Linnaeus established a clear and concise method for classifying plants called                         .
Term
Definition
Both              and               conditions determine when plants flower.
Term
Definition
The              is an area where new cells are formed and is the layer between the xylem and phloem.
Term
Definition
Why is propogation by seeds the major means of reproduction in agriculture?
Term
Definition
What are the 4 major classes of seed production that must occur prior to commercial seed distribution?
Term
Definition
What are 4 factors that should be considered for the production of seeds?
Term
Definition
How can you experimentally determine percentage seed germination?
Term
Definition
Describe direct seeding and list 5 factors that determine the success of this method.
Term
Definition
What is indirect seeding?
Term
Definition
What are 4 important factors that should be considered when selecting a germination media?
Term
Definition
What is damping-off, and what are 2 ways to control it?
Term
Definition
What are the 5 major categories of primary seed dormancy?
Term
Definition
What is the most important benefit of asexual propagation?
Term
-apoximis
-cuttings
-grafting
-budding
-layering
-separation
-division
-tissue culture
Definition
What are the 8 types of asexual propagation?
Term
-time of year
-stage of growth
-type of wood
Definition
What are 3 factors that determine if cuttings will produce roots?
Term
-stem
-leaf
-root
-leaf-bud
Definition
List 4 types of cuttings and provide an explanation for each.
Term
-environmental conditions and physiological status of the parent plant
-timing and collection of cuttings
-preparation of cuttings
-root-inducing environment
Definition
What are several factors that should be considered to ensure optimal rooting of cuttings?
Term
-higher percentage of cuttings produce roots
-root initiation is quicker in most cases
-the number and quality of roots per cutting is increases
-uniformity of rooting along the length of the cutting is increased
Definition
What are 4 direct benefits of treating cuttings with auxin?
Term
-scion and understock must be compatible
-diameter of understock must be equal to or larger than the scion's diameter
-done at proper time of year
-prevent dessication
Definition
List several important tasks that should be done for successful graft unions.
Term
-maintain clones that cannot be propagated by other asexual methods
-gain benefits of certain root stocks
-speed up time to maturity to promote earlier fruit production
-to repair damaged parts of trees
Definition
What are 4 major uses of grafting?
Term
-chip
-T
-patch
Definition
List 3 types of budding and explain what time of the year budding should be done and why.
Term
-simple
-serpentine
-trench
-mound
-air
Definition
List and explain 5 types of layering.
Term
-callus
-cell suspension
-embryo
-meristem
-anther
Definition
What are 5 commonly used methods of tissue culture?
Term
plant propagation
Definition
the reproduction of new plants from seeds and vegetative parts of the plant such as leaves, stems, and roots
Term
sexual propagation
Definition
the reproduction of plants with the use of seeds
Term
homozygous
Definition
the plant has similar genes of a Mendelian pair present, such as the dwarf pea plants that contain only the genes from dwarfness
Term
true to type
Definition
identical to the parent plant
Term
heterozygous
Definition
plants having different genes of a Mendelian pair present in the same organism, such as tall pea plants that contain the genes for both tallness and dwarfness; these plants are not true to type
Term
scarification
Definition
the process of breaking the seedcoat
Term
stratification
Definition
when seeds are places on a moist medium at temperatures between 32 and 50ºF to promote germination
Term
hardened-off
Definition
gradually subjecting plants to cooler temperatures with less frequent watering
Term
asexual propagation
Definition
the reproduction of new plants from the stems, leaves, or roots taken from the parent plant
Term
clone
Definition
a plant that is grown from a piece of another plant and is genetically identical to the parent
Term
apomixis
Definition
a form of asexual propagation in which seeds are produced without fertilization
Term
girdling
Definition
the process of blocking phloem transport by removing a ring of bark from the stem
Term
grafting
Definition
the process of connecting two plants or plant parts together in such a way that they will unite and continue to grow as one plant
Term
scion
Definition
a short piece of stem with one or two buds
Term
separation
Definition
a propagation method in which natural structures are removed from the parent plant and planted to grow on their own
Term
division
Definition
a method of propagation in which parts of plants are cut into sections that will grow into new plants naturally
Term
tissue culture
Definition
a method for producing new plants from single cells, tissues, or pieces of plant materials called explants on artificaly medium under sterile conditions
Term
explants
Definition
pieces of plant material used in tissue culture
Term
callus
Definition
an undifferentiated mass of cells
Term
meristem
Definition
a region of the plant consisting of undifferentiated tissue whose cells can divide and differentiate to form specialized tissues
Term
genetic engineering
Definition
in its broadest sense, the isolation, introduction, and expression of foreign DNA into the plant
Term
Definition

T or F?

 

The most important factor to be considered when harvesting seeds is known when they are ripe.

Term
Definition

T or F?

 

Plants produced by seeds are genetically different from their parents.

Term
Definition

T or F?

 

Mechanical dormancy is caused by the seed covering being impervious to water.

Term
Definition

T or F?

 

Mechanical and physical seed dormancy are both caused by the seed covering being impervious to water.

Term
Definition

T or F?

 

Physical dormancyoccurs when the seed covering is impervious to water.

Term
Definition

T or F?

 

Mechanical dormancy is caused by the seed-enclosing stucture being too strong to permit expansion of the embryo even though water can penetrate the enclosing structure.

Term
Definition

T or F?

 

Chemical dormancy is caused by germination inhibitors that accumulate in the fruit or seed covering during development.

Term
Definition

T or F?

 

Stratification occurs when seeds are placed in a moist medium at high temperatures to overcome dormancy.

Term
Definition

T or F?

 

Stratification is commonly used to overcome chemical dormancy.

Term
Definition

T or F?

 

Apomixis is a form of incompatibility in plants.

Term
Definition

T or F?

 

One of the major benefits of asexual propagation is its ease.

Term
Definition

T or F?

 

Leaf cuttings are used when plant materials are scarce and when large numbers of plants are needed.

Term
Definition

T or F?

 

Fertilization of cuttings is not necessary until roots have emerged.

Term
Definition

T or F?

 

Leaf cuttings consists of a leaf, petiole, and a short piece of stem with a lateral bud.

Term
Definition
The phloem of the scion must be in close contact with the cambium of the understock for a graft union to be successful.
Term
Definition

T or F?

 

Scion is the term used to describe the short piece of stem with one or two buds used for grafting.

Term
Definition

T or F?

 

Budding should be done during the summer months when the bark separates easily.

Term
Definition

T or F?

 

Budding should be done during the spring or fall when the bark separates easily from the wood.

Term
Definition

Commerical seed producers are located in which of the following areas to minimize disease problems?

 

A. Tropical climate

B. Arid climate

C. At a location with high humidity

D. All of the above

Term
Definition

Many federal and state laws regulate the shipment and sale of seeds. These laws require that seeds be tested and labeled for which of the following?

 

A. Trueness of name

B. Pure seed percentage

C. Origin

D. All of the above

Term
Definition

Scarification is

 

A. a method for breaking the seed coat to promote germination

B. a scaring process in plants following damage

C. a wound-healing process

D. All of the above

Term
Definition

Stratification is

 

A. placing seeds in a moist medium at temperatures between 32° and 50ºF.

B. subjecting plants to cold temperatures to induce flowering

C. a method to promote rooting

D. None of the above

Term
Definition

What time of the day should cuttings be taken?

 

A. Early morning

B. Early afternoon

C. The time of day does not matter

D. None of the above

Term
Definition

Simple layering occurs when

 

A. a branch is placed in a trench and roots form at the nodes

B. the terminal end of the shoot being buried is left exposed

C. soil is mounded around new shoots

D. None of the above

Term
Definition

Air layering occurs when

 

A. a portion of the bark on the stem is removed, moist material is placed around the wounded site, and this material is wrapped with plastic to hold in the moisture.

B. the terminal end of the shoot is buried and the shoot tip is left exposed to the air

C. a branch is placed under the ground with portions left exposed to the air

D. None of the above

Term
Definition

Which of the following tissue culture methods are commonly used?

 

A. Callus culture

B. Embryo culture

C. Meristem culture

D. All of the above

Term
Definition

Which of the following is a fast and easy way to determine if seeds are alive?

 

A. Xenobiotic test

B. Phenylpropylene test

C. Tetrazolium test

D. None of the above

Term
Definition
A fungal disease that causes the stems to rot at the soil line is called            .
Term
Definition

The two major methods of propagation are          

and             propagation.

Term
Definition
The three major categories of grafts are                    , and          .
Term
Definition
Budding is typically done during the         and         because this is when the bark slips or readily separates from the wood.
Term
Definition
         is a simple method of asexual propagation in which roots are formed on the stem while it is still attached to the parent plant.
Term
Definition
             is an undifferentiated mass of cells.
Term
Definition
The             is a region of the plant consisting of undifferentiated tissue whose cells can divide and differentiate to form specialized tissues.
Term
Definition
What are the 7 major roles of media?
Term
Definition
What are 4 commonly used kinds of media for growing plants?
Term
Definition
What are 6 advantages of using soilless media?
Term
Definition
What are the 3 disadvantages of using soilless media?
Term
Definition
What are 3 advantages and one disadvantage of hydroponic growing systems over soil culture?
Term
Definition
List 2 ways to classify hydroponic systems and give 2 examples for each.
Term
Definition
What are the 3 types of parent material used to produce soil?
Term
Definition
What are the 2 major reasons for aerating nutrient solutions?
Term
Definition
What are 2 principal criteria by which an element can be judged essential to any plant?
Term
Definition
How many essential elements do most plants require for normal plant growth and development?
Term
Definition
Where do plants get carbon, hydrogen, and oxygen?
Term
Definition
List the 16 essential inorganic elements and indicate which are primary macronutrients, secondary macronutrients, and micronutrients.
Term
Definition
What are 2 ways nitrogen can be taken up by the plant?
Term
Definition
What plant constituents have nitrogen as part of their structure?
Term
Definition
Provide 2 ways to modify soil pH, one to increase it and once to decrease it.
Term
Definition
List and explain 3 systems used to determine the nutritional status of the plant.
Term
Definition
What are 4 fates of fertilizers applied to the soil?
Term
Definition
What are 3 ways that fertilizers can be applied?
Term
Definition
What are 5 factors that must be taken into consideration when deciding the frequency and rate of fertilizer application?
Term
soil
Definition
Term
dirt
Definition
Term
peat moss
Definition
Term
perlite
Definition
Term
vermiculite
Definition
Term
organic matter
Definition
Term
soil triangle
Definition
Term
soil structure
Definition
Term
soil compaction
Definition
Term
soil aeration
Definition
Term
soil profile
Definition
Term
horizons
Definition
Term
cation exchange capacity (CEC)
Definition
Term
macronutrients
Definition
Term
micronutrients
Definition
Term
soil pH
Definition
Term
soil testing
Definition
Term
foliar analysis
Definition
Term
luxury consumption
Definition
Term
fallow
Definition
Term
fertilizer
Definition
Term
green manure
Definition
Term
complete fertilizer
Definition
Term
incomplete fertilizer
Definition
Term
fertilizer analysis
Definition
Term
active ingredient
Definition
Term
inert ingredient
Definition
Term
Definition

T or F?

 

Perlit is made from heat-treated mica and its primary use if for nutrient- and water-holding capacity.

Term
Definition

T or F?

 

Vermiculite is made from volcanic materials and is used in the medium for drainage and aeration.

Term
Definition

T or F?

 

Peat moss is used for its nutrient- and water-holding capacity.

Term
Definition

T or F?

 

Bark is now used as a substitute for peat moss.

Term
Definition

T or F?

 

Wood chips and sawdust are now being used as an alternative to peat moss.

Term
Definition

T or F?

 

Sand is used for aeration and nutrient-holding capacity.

Term
Definition

T or F?

 

Hydroponic methods for growing plants can be broken down into substrate and bare root systems.

Term
Definition

T or F?

 

A soil triangle is used as a method of classifying soils based on the texture of the soil.

Term
Definition

T or F?

 

The CEC of a soil is used as an index of soil fertility.

Term
Definition

T or F?

 

Just because an element is found in the plant does not mean it is essential.

Term
Definition

T or F?

 

The color of flowers on some plants is related to the pH of the soil in which they are grown.

Term
Definition

T or F?

 

Nutrients are carbohydrates produced by the process of photosynthesis in the leaf.

Term
Definition

T or F?

 

Potassium is taken up by the plant as K2O.

Term
Definition

T or F?

 

Calcium is taken up by the plant in its ionic form, which is Ca2+.

Term
Definition

Cover crops may be used as a fertilizer; a commonly used term for cover crops used in this capacity is

 

A. green manure

B. supplemental fertilizer

C. living fertilizer

D. None of the above

Term
Definition

Some fertilizers contain a herbicide. Which of the following herbicides is commonly found in fertilizers?

 

A. 2,4,5-D

B. 2,4-D

C. 2,4,5-T

D. All of the above

Term
Definition

A complete fertilizer contains which of the following?

 

A. All of the essential elements

B. Both primary and secondary macronutrients

C. All three primary macronutrients

D. All of the above

Term
Definition

An incomplete fertilizer contains which of the following?

 

A. All of the essential elements

B. Both primary and secondary macronutrients

C. All three primary nutrients and may have some select micronutrients

D. None of the above

Term
Definition
The major disadvantage of hydroponic growing systems over soil culture is             .
Term
Definition
Aerating the solutions of plants grown hydroponically maintains                levels and avoids                       buildup.
Term
Definition
One of the advantages of hydroponic growing systems over soil culture is that the yield per area is           .
Term
Definition

Soil texture is determined byt he proportion of         

       , and          present in the soil.

Term
Definition
The CEC is used as an index of             .
Term
Definition
Nitrogen is taken up by the plant as          or              .
Term
Definition
Lime can be used as a source of nutrients. Agricultural limestone contains             whereas dolomitic limestone contains          and            .
Term
Definition
After carbon, hydrogen, and oxygen,          is the msot important element in growing vegetative tissue.
Term
Definition

Prior to fertilizer application, it is important to run a 

             to know what amount of fertilizer to apply.

Term
Definition
Carbon used by plants comes from            , whereas hydrogen and oxygen come from water.
Term
Definition
To get accurate results from soil tests, it is important to get the proper sample taken; this is accomplished by taking             over the entire field.
Term
Definition

Fertigation is the application of fertilizers through the 

              system.

Term
Definition

Primary, Secondary, Micro?

 

Nitrogen

Term
Definition

Primary, Secondary, Micro?

 
Phosphorous
Term
Definition

Primary, Secondary, Micro?

 
Potassium
Term
Definition

Primary, Secondary, Micro?

 
Sulfur
Term
Definition

Primary, Secondary, Micro?

 
Calcium
Term
Definition

Primary, Secondary, Micro?

 
Magnesium
Term
Definition

Primary, Secondary, Micro?

 
Boron
Term
Definition

Primary, Secondary, Micro?

 
Copper
Term
Definition

Primary, Secondary, Micro?

 
Chlorine
Term
Definition

Primary, Secondary, Micro?

 
Iron
Term
Definition

Primary, Secondary, Micro?

 
Manganese
Term
Definition

Primary, Secondary, Micro?

 
Molybedenon
Term
Definition

Primary, Secondary, Micro?

 
Zinc
Term
Olive
Definition
Major crop from Europe
Term
yam
Definition
Major crop from Africa
Term
Apple
Definition
Major crop from Near East
Term
Hemp
Definition
Major crop from Central Asia
Term
cucumber
Definition
Major crop from India
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