Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PS 103 Final > Final > Flashcards

Final Flashcards

1
Q

T/F It is natural for weeds to fill empty niches in cropping systems.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

T/F Weeds can be classified by the environments in which they grow.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

T/F Crop plants are never weeds.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

T/F Biennial weeds flower in the first year.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

T/F Most dicots are easier to kill by cultivation than monocots.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

T/F A weed must be alive in order to demonstrate allelopathic properties.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

T/F Over 95 percent of corn, soybeans, and cotton crops grown are treated with herbicides.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

T/F Weeds can interfere with harvesting equipment.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

T/F Weed seeds tends to be bigger than crop seed.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

T/F Animals do not have a significant role in weed dispersal.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

T/F Insecticides are used more than any other pesticide.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

T/F It is a violation of federal law to use a herbicides in a manner inconsistent with its labeling.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

T/F Selective herbicides affect almost all plants.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

T/F Different crop species select for different weed species.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

T/F A disadvantage of biological control is the possibility of affecting non-target species.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

T/F Tillage is an effective strategy of weed control regardless of weed species.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

T/F The main concern with atrazine is leaching and accumulation in surface and groundwater.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

T/F Management of plant disease depends on whether the disease is biotic or abiotic.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

T/F The life cycle of a fungus can involve only one type of spore.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

T/F Mycelium is a symptom of fungal disease.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

T/F Scab is more likely to be a problem in dry, cool areas.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

T/F Smut can overwinter in soil, plant debris, and seed.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

T/F Most fungal agents that cause postharvest diseases are introduced to the affected seed after harvest.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

T/F Bacterial wilt of alfalfa is less an issue today because of resistant varieties.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

T/F Plant pathogenic viruses are generally composed of DNA enclosed in a protein case

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

T/F Viruses can enter the plant through the stomata.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

T/F Fungi can transmit viruses to a plant.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

T/F A method to control viral diseases is the use of pesticides.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

T/F Insects that damage plants all have mouthparts that pierce.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

T/F Many bactericides are copper-based.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

T/F Contact insecticides, once absorbed by the insect, attack the nervous and respiratory system.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

T/F UG99 stem rust has the potential to threaten 20% of the world’s food supply.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

T/F A bushel of corn or soybeans weighs 60 pounds (27 kilograms)

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

T/F Seeds at physiological maturity are dry enough for storage.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

T/F Generally when soybeans are harvested, the leaves have fallen off the plants.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

T/F After combining, grain is clean of residue.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

T/F Above-optimum moisture levels in seeds increase the rate of respiration.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

T/F Grain storage always improves grain quality.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

T/F The decision to dry grain crops artificially versus naturally can be dependent on energy prices.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

T/F Harvest forages generally contain mature seed.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

T/F Silage yields are usually up to 50 percent higher per acre than hay yields.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

T/F High cell wall content is associated with increased intake and digestibility.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

T/F Many modern beef and dairy operations rely more on stored grains than on grazing to feed livestock.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

T/F The process of fermentation during silage production turns lactic acid into glucose.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

T/F Cotton is mature when the bolls begin to close.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

T/F Sugar content is the most important quality for sugar beets.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

T/F Potato size is the main determinant in harvesting.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

T/F Organic producers are allowed to use genetically modified organisms.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

T/F Organic agriculture promotes and enhances biodiversity, biological cycles, and environmental stewardship.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

T/F About 10 percent of cropland in the United States is certified organic.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

T/F Organic farmers are inspected by governmental agencies for certification.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

T/F Organic food tends to be more expensive than conventionally produced food.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

T/F The term “natural” on a label is equivalent to “organic”

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

T/F The term “local” is regulated by the USDA.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

T/F An example of cultural weed control method is tillage.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

T/F One disadvantage to delayed planting is potentially lower yields.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

T/F Organic farmers choose either cultural or mechanical weed control to manage their weeds.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

T/F For organic crops that are used for human consumption, raw manure can be applied at any time during the growing season.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

T/F Corn could not persist without human cultivation.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

T/F Some corn hybrids are adapted to grow in places with a growing season as short as 70 days

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

T/F Flour corn is more resistant to fungi and insects than flint corn.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

T/F Most corn grown today is hybrid corn.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

T/F Wheat is adapted to warm tropical climates.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

T/F Soft wheat has a greater protein content compared to hard wheat.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

T/F Rice is a primary grain crop for over 50 percent of the world’s population.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

T/F Rice is very productive when grown under drier conditions.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

T/F Wild rice is commonly used as a livestock feed.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

T/F Barley can used as a substitute for wheat when making raised bread.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

T/F Oats are still valued as feed for horses.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

T/F Sorghum ranks fourth in importance worldwide as human food crop after corn, rice, and wheat.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

T/F Rice in most of the world is cultivated using highly mechanized techniques.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

T/F Sweet sorghum is being invested as an alternative biofuel.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

T/F The first use of soybeans in North America was as a grain crop.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

T/F The largest producer of soybeans in the world is the United States.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

T/F The seed of cultivated soybeans is always yellow in color.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

T/F Determinant soybean varieties are generally grown in the southern states.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

T/F Soybeans do not require nitrogen fertilizer.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

T/F Peanuts are best adapted to temperate regions

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

T/F Alfalfa can have taproots as deep as 20 feet (6 meters)

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

T/F Seed production of alfalfa is primarily in California and other western states.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

T/F Sweet clover was once commonly used as a nitrogen source.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

T/F Vetches are commonly grown in tropical regions as green manure crops.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q

T/F Benefits of using native legumes agronomically include natural adaptation and increasing diversity.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q

T/F Most of the field pea production in the United States is used as dried peas for soup or livestock feed.

A

True

85
Q

T/F Crimson clover is adapted to hot and dry conditions

A

False

86
Q

T/F Other plant families besides the grass and legume families can have crops of economic importance.

A

True

87
Q

T/F Potatoes grow best in heavy clay soils.

A

False

88
Q

T/F Tobacco crops are generally not allowed to flower and produce seed.

A

True

89
Q

T/F The use of tobacco in its many forms can cause health problems such as lung cancer, heart disease, emphysema, and mouth cancers.

A

True

90
Q

T/F Sweet potatoes can be grown as perennials in tropical areas.

A

True

91
Q

T/F True yams have modified roots like sweet potatoes.

A

False

92
Q

T/F Sugar beets contain 50 percent of sugar at harvest.

A

False

93
Q

T/F Sugar cane is the source of 50 percent of the world production of sugar.

A

True

94
Q

T/F The fiber from cotton is always white.

A

False

95
Q

T/F Russian scientists were responsible for breeding for large heads and high seed production in sunflowers.

A

False

96
Q

T/F Tobacco growers take actions to promote flowering when growing tobacco.

A

False

97
Q

T/F Opium poppy is a source for legal and illegal drugs.

A

True

98
Q

A plant can be classified as a weed if it:
A: causes economic loss to a crop
B: is detrimental to wildlife or ecosystems
C: is harmful to humans and livestock
D: All answers are correct

A

D: all answers are correct

99
Q 
Weeds that are especially injurious are classified by the government as:
A: Toxic
B: Noxious
C: Non-native
D: Exotic
A

B: Noxious

100
Q 
The long-term persistence of a certain annual weed species is most likely due to:
A: Extensive root system
B: Herbicide resistance
C: High seed production
D: Tolerance to tillage
A

C: A perennial

101
Q 
A weed that reproduces asexually is most likely:
A: An annual
B: A biennial
C: A perennial
D: None of these answers are correct
A

C: A perennial

102
Q 
Milk sickness is caused when people drink milk from cows who have consumed which weed?
A: Poison ivy
B: Musk thistle
C: Pigweed
D: White snakeroot
A

D: White snakeroot

103
Q 
The first defense against weeds is: 
A: prevention of establishment
B: herbicides
C: tillage
D: biocontrols
A

A: prevention of establishment

104
Q 
Which agency of the USDA is responsible for preventing the introduction of noxious weeds?
A: EPA
B: APHIS
C: ARS
D: NRCS
A

B: APHIS

105
Q 
Which agency is responsible for approving new herbicides?
A: EPA
B: APHIS
C: ARS
D: NRCS
A

A: EPA

106
Q 
In what year were genetically engineered crops first introduced?
A: 1991
B: 1993 
C: 1996
D: 1998
A

C: 1996

107
Q 
which type of ingredients are added to a herbicide formulation to facilitate application and handling or to increase activity?
A: active ingredient
B: inert ingredient
C: chemical ingredient
D: restricted ingredient
A

B: inert ingredient

108
Q 
LD50 is a measure of:
A: dispersion
B: toxicity
C: activity
D: suspension
A

C: activity

109
Q 
The mode of action for glyphosate is:
A: growth regulator
B: photosynthesis inhibitor
C: amino acid synthesis inhibitor
D: cell membrane disrupter
A

C: amino acid synthesis

110
Q 
The mode of action for 2,4-D is:
A: growth regulator
B: photosynthesis inhibitor
C: amino acid synthesis
D: cell membrane disrupter
A

A: growth regulator

111
Q 
The mode for atrazine is:
A: growth regulator
B: photosynthesis inhibitor
C: amino acid synthesis
D: cell membrane disrupter
A

D: cell membrane disrupter

112
Q 
Which type of herbicide is applied to foliage?
A: preemergence
B: preplant
C: systemic
D: contact
A

D: contact

113
Q 
Which type of herbicide is would be most useful on an established perennial weed?
A: preemergence
B: preplant
C: systemic
D: contact
A

C: systemic

114
Q 
Which would NOT be appropriate to prevent herbicide resistance?
A: crop rotation
B: using extra herbicide
C: herbicide rotation
D: tillage
A

B: using extra herbicide

115
Q 
Grassy weeds would be easiest to control in which crop?
A: corn
B: wheat
C: soybeans
D: oats
A

C: soybeans

116
Q 
The visual response by the plant to the pathogen is:
A: a symptom
B: a disease
C: an injury
D: an infection
A

A: a symptom

117
Q 
Which of the following is NOT abiotic disease factor?
A: parasitic plant
B: water deprivation
C: soil acidity
D: herbicide
A

A: parasitic plant

118
Q 
Which of the following organisms reproduces by spores?
A: bacterium
B: virus
C: fungus
D: nematode
A

C: fungus

119
Q 
Rust disease are caused by which group of fungi?
A: sclertinomycetes
B: basidiomycetes
C: fusariomycetes
D: pythiomycetes
A

B: basidiomycetes

120
Q 
Stem rust can have up to how many different spore stages?
A: two
B: three
C: five
D: seven
A

C: five

121
Q 
Damping off affects which growth stage?
A: seedling
B: flowering
C: fruiting
D: senescence
A

A: seedling

122
Q 
The disease associated with the Salem witch trials is:
A: scab
B: rust
C: blast
D: ergot
A

D: ergot

123
Q 
Leaf spots due to bacteria tend to be:
A: round
B: angular
C: mosaic
D: linear
A

B: angular

124
Q 
Bacterial wilts occur when the bacteria invade the:
A: flowers
B: leaves
C: fruits
D: vascular system
A

D: vascular system

125
Q 
Common and halo blight affect which crop species?
A: Corn
B: small grains
C: sugar beets
D: beans
A

D: beans

126
Q 
Vein clearing is a symptom common in:
A: viral diseases
B: bacterial diseases
C: plant parasitic diseases
D: fungal diseases
A

A: viral diseases

127
Q 
Which plant family does tobacco mosaic primarily infect?
A: rose family
B: potato family
C: grass family
D: legume family
A

B: potato family

128
Q 
Aster yellows is caused by which group of organisms:
A: fungi
B: bacteria
C: viruses
D: mycoplasma-like organisms
A

D: mycoplasma-like organisms

129
Q 
Nematodes are a type of:
A: insect
B: roundworm
C: fungi
D: bacteria
A

B: roundworm

130
Q 
The best strategy for nematode control would be:
A: removal of plant debris
B: seed treatments
C: fungicides
D: crop rotation
A

D: crop rotation

131
Q 
The soybean cyst nematode causes damage by:
A:  necrosis
B: clogging phloem
C: feeding on roots
D: defoliating leaves
A

C: feeding on roots

132
Q 
The corn ear worm feeds on what part of the corn?
A: roots
B: blades
C: stems
D: kernels
A

D: kernels

133
Q 
A potential biocontrol being evaluated for use on soybean aphid is which of the following?
A: bacillus thuringiensis
B: binodoxys communis
C: pyrausta nubilalis
D: lepinotarsa decimilneata
A

B: binodoxys communis

134
Q 
Corn is typically harvested at grain moisture levels of:
A: 13 percent
B: 20 percent
C: 25 percent
D: 33 percent
A

A: 25 percent

135
Q 
Soybean is typically harvest at grain moisture levels of:
A: 13 percent
B: 20 percent
C: 25 percent
D: 33 percent
A

A: 13 percent

136
Q 
Swathing would most likely be part of harvesting for which crop?
A: corn
B: oats
C: soybeans
D: sugar beet
A

B: oats

137
Q 
Manual harvesting of grains was first replaced by which machine?
A: combine
B: reaper
C: binder
D: cradle
A

B: reaper

138
Q 
The minimum temperature for storage fungi growth is:
A: 20 F
B: 30 F
C: 40 F
D: 50 F
A

C: 40 F

139
Q 
the most frequent cause of loss during grain storage is:
A: insects
B: fungi
C: rodents
D: bacteria
A

B: fungi

140
Q 
The loss of forage nutrients during harvest frequently can be up to:
A: 5 percent
B: 25 percent
C: 40 percent
D: 60 percent
A

B: 25 percent

141
Q 
Forage feeding value is described as:
A: forage quality
B: intake
C: nutritive value
D: antiquality factors
A

A: forage quality

142
Q 
Thorns would be categorized as which of the following?
A: forage quality
B: intake
C: nutritive value
D: antiquality factors
A

D: antiquality factors

143
Q

As the crop matures from vegetative to flowering stages, which of the following occurs?
A: Forage yield decreases and forage quality decreases.
B: Forage yield decreases and forage quality increases.
C: Forage yield increases and forage quality increases
D: Forage yield increases and forage quality decrease.

A

D: Forage yield increases and forage quality decreases

144
Q 
The stocking rate is:
A: number of paddocks in a pasture
B: amount of hay in a bale
C: amount of silage in a silo
D: animals on pasture per acre
A

D: animals on pasture per acre

145
Q 
The leading hay crop in the United States is:
A: smooth bromegrass
B: red cloveer
C: alfalfa
D: timothy
A

C: alfalfa

146
Q 
Drying hay in the field takes about how many days?
A: 1-5
B: 6-10
C: 11-15
D: over 15
A

A: 1-5

147
Q 
What is the most important determinant of quality in a tobacco crop?
A: leaf color
B: nicotine content
C: grain yield
D: moisture content
A

B: nicotine content

148
Q 
Which of the following is allowed in organic agriculture?
A: stacked trait corn
B: synthetic fertilizers
C: roundup
D: compost
A

D: compost

149
Q 
For how many years must land be without prohibited materials to be certified organic?
A: 1
B: 2
C: 3
D: 4
A

C: 3

150
Q 
How often are certified organic farms inspected?
A: once a year
B: twice a year
C: three times a year
D: every other year
A

A: once a year

151
Q 
In terms of organic sales, what are the two largest categories?
A: fruit/vegetables and meat
B: meat and dairy
C: fruit/vegetables and dairy
D: meat and grains
A

C: fruit/vegetables and dairy

152
Q 
The federal program that regulates organic agriculture in the United States is called:
A: National Organic Program
B: Organic System Plan
C: Organic Agriculture Department
D: National Organic Department
A

A: National Organic Program

153
Q 
The term "local" is defined by Congress as food grown not farther than which distance?
A: 10 miles
B: 40 miles
C: 100 miles
D: 400 miles
A

D: 400 miles

154
Q 
Yields in organic agriculture as compared to conventional agriculture tend to:
A: be always higher
B: be always lower
C: be equivalent
D: vary by crop
A

D: vary by crop

155
Q 
Which is considered to be one of the biggest challenges in organic production?
A: planting
B: selling crop
C: weed control
D: harvesting
A

C: weed control

156
Q 
A vigorously growing crop that is used to suppress weeds is called a:
A: smother crop
B: rotational crop
C: stifle crop
D: transitional crop
A

A: smother crop

157
Q 
Primary tillage can be performed with which of the following?
A: cultivator
B: rotary hoe
C: harrow
D: moldboard plow
A

D: moldboard plow

158
Q 
Secondary tillage can be performed with which of the following?
A: cultivator
B: rotary hoe
C: harrow
D: moldboard plow
A

C: harrow

159
Q 
Which of the following weed control operations has the most potential to damage crops?
A: inter-row cultivation
B: broadcast cultivation
C: primary tillage
D: secondary tillage
A

B: broadcast cultivation

160
Q 
Based on acreage and economic value, which of the following crops is the most important in the United States?
A: rice
B: wheat
C: soybean
D: corn
A

D: corn

161
Q 
On a corn plant, the male flowers are called:
A: the silk
B: the tassel
C: the ear
D: the husk
A

B: the tassel

162
Q 
Which is the most widely grown corn type?
A: flint
B: flower
C: pod
D: dent
A

D: dent

163
Q 
Which of the following corn types has very little starch?
A: flint
B: flower
C: sweet
D: dent
A

C: sweet

164
Q 
The leading use of corn is:
A: as livestock feed
B: in sweeteners
C: as corn on the cob
D: in processed corn products
A

A: as livestock feed

165
Q 
Which of the following crops is known as the "staff of life"
A: corn
B: wheat
C: barley
D: oats
A

B: wheat

166
Q 
The number of tiller on a wheat plant typically ranges from:
A: 1 to 2
B: 3 to 5
C: 5 to 10
D: 10 to 20
A

B: 3 to 5

167
Q 
Which type of flour is made by grinding the entire wheat grain?
A: self-rising flour
B: bleached enriched flour
C: white flower
D: whole wheat flower
A

D: whole wheat flower

168
Q 
Which of the following is used like a cereal grain but is actually a member of the Polygonaceae family?
A: buckwheat
B: triticale
C: spelt
D: Emmer wheat
A

A: buckwheat

169
Q 
Wild rice is a:
A: cool season annual plant
B: warm season annual plant
C: cool season perennial plant
D: warm season perennial plant
A

A: cool season annual plant

170
Q 
The two leading states for commercial wild rice production are:
A: Texas and Wisconsin
B: Texas and California
C: Minnesota and California
D: Wisconsin and Minnesota
A

C: Minnesota and California

171
Q 
Which of the following grains is known for its cholesterol-lowering capability?
A: oats
B: barley
C: rye
D: wheat
A

A: oats

172
Q 
Grain sorghum is produced primarily in which two states?
A: Illinois and Michigan
B: California and Washington
C: North and South Dakota
D: Kansas and Texas
A

D: Kansas and Texas

173
Q 
Which of the following is commonly used as winter cover crop?
A: corn
B: buckwheat
C: rye
D: rice
A

C: rye

174
Q 
Which of the following grains is adapted to high altitudes?
A: corn
B: quinoa
C: amaranth
D: buckwheat
A

B: quinoa

175
Q 
Which of the following is a native grass with potential usage as biofuel?
A: switchgrass
B: wheatgrass
C: tall fescue
D: Kentucky bluegrass
A

A: switchgrass

176
Q 
Tall fescue toxicosis is due to which of the following?
A: moldy tall fescue
B: a bacteria in tall fescue
C: overeating of tall fescue
D: a fungus in tall fescue
A

D: a fungus in tall fescue

177
Q 
How many maturity groups do soybeans have?
A: 7
B: 11
C: 13
D: 15
A

C: 13

178
Q 
Which of the following would be classified as a field bean?
A: kidney bean
B: green bean
C: snow pea
D: soybean
A

A: kidney bean

179
Q 
Field beans are native to:
A: Asia
B: Europe
C: Africa
D: the Americas
A

D: the Americas

180
Q 
Field beans need to be cooked because:
A: they contain toxic compounds
B: the oligosaccharides contribute to gas formation
C: the protein will be unavailable
D: they are too difficult to chew
A

C: the protein will be unavailable

181
Q 
Peanuts are native to:
A: Africa
B: Europe
C: North America
D: South America
A

D: South America

182
Q 
Which is NOT generally used as a grain legume?
A: chickpea
B: alfalfa
C: lupine
D: lentils
A

B: alfalfa

183
Q 
Up to how many times can alfalfa be harvested in a season?
A: only once
B: twice
C: five times
D: seven times
A

C: five times

184
Q 
Which of the following is sown on more acres in the United States?
A: white clover
B: red clover
C: sweet clover
D: alfalfa
A

B: red clover

185
Q 
Which of the following has stolons?
A: white clover
B: red clover
C: sweet clover
D: alfalfa
A

A: white clover

186
Q 
For which of the following is birdsfoot trefoil most suited?
A: hay 
B: silage
C: pasture
D: grain
A

C: pasture

187
Q 
Which of the following is best adapted to dry conditions?
A: white clover
B: red clover
C: alfalfa
D: sainfoin
A

D: sainfoin

188
Q 
How much of the peanut frop produced in the United States is consumed as peanut butter?
A: 20 percent
B: 30 percent
C: 40 percent
D: 50 percent
A

D: 50 percent

189
Q 
Which of the following is NOT a typical color type for field peas?
A: green
B: brown
C: yellow
D: cream
A

B: brown

190
Q 
What potatoes originated in:
A: Europe
B: Asia
C: North America
D: South America
A

D: South America

191
Q 
Which of the following crops is NOT in the nightshade family?
A: sweet potato
B: white potato
C: tobacco
D: tomato
A

A: sweet potato

192
Q 
The leading producer of sweet potatoes is:
A: Asia
B: North America
C: South America
D: Africa
A

A: Asia

193
Q 
Tapioca is made of:
A: true yams
B: turnip
C: Jerusalem artichoke
D: cassava
A

D: cassava

194
Q 
Which of the following is native to North America?
A: true yams
B: turnip
C: Jerusalem artichoke
D: cassava
A

C: Jerusalem artichoke

195
Q 
Taro is grown for which part of the plant?
A: leaves
B: corms
C: seeds 
D: tubers
A

B: corms

196
Q 
Cassava is which of the following?
A: cool season annual
B: perennial woody shrub
C: warm season annual
D: herbaceous perennial
A

B: perennial woody shrub

197
Q 
Seeds are produced in sugar beet in the:
A: first year
B: second year
C: third year
D: fourth year
A

B: second year

198
Q 
Platains are which type of crop?
A: sugar crop
B: oil crop
C: grain crop
D: starch crop
A

D: starch crop

199
Q 
Opium poppy is grown for which plant parts?
A: sap and seeds
B: sap, seeds, and roots
C: seeds only
D: sap only
A

A: sap and seeds

200
Q 
Sugar cane is native to which of the following regions?
A: the Caribbean
B: the South Pacific and India
C: China
D: South America
A

B: the South Pacific and India

201
Q 
The leading fiber crop in the world is:
A: flax
B: cotton
C: hemp
D: sisal
A

B: cotton

202
Q 
Where are the fibers of cotton found?
A: in the stem
B: in the leaves
C: attached to the roots
D: attached to the seeds
A

D: attached to the seeds

203
Q 
Where are the fibers of flax found?
A: in the stem
B: in the leaves
C: attached to the roots
D: attached to the seeds
A

A: in the stem

204
Q 
The cloth produced form flax is:
A: polyester
B: linen
C: satin
D: canvas
A

B: linen

205
Q 
Flax is which of the following?
A: cool season annual
B: cool season perennial
C: warm season annual
D: warm season perennial
A

A: cool season annual

206
Q 
Which of the following is NOT used as fiber crop?
A: flax
B: cotton
C: hemp
D: sunflower
A

D: sunflower

207
Q 
Which of the following is NOT an oil crop?
A: cotton
B: canola
C: safflower
D: none of these answers are correct
A

D: none of these answers are correct

208
Q 
Canola is which of the following?
A: a cool season annual
B: a cool season perennial
C: a warm season perennial
D: warm season annual
A

A: a cool season annual

PS 103 Final (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions