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PS103 Final Exam
PS103 Final Exam
195
Agriculture
Undergraduate 1
12/07/2015

Additional Agriculture Flashcards

 


 

Cards

Term
How many maturity groups do soybeans have?
Definition
13
Term
Which kind of the following would be classified as a field bean?
Definition
Kidney bean
Term
Field beans are native to
Definition
the Americas
Term
Field beans need to be cooked because
Definition
the protein is otherwise unavailable
Term
Peanuts are native to
Definition
South Africa
Term
Which of the following is NOT generally used as a grain legume
Definition
alfalfa
Term
Up to how many times can alfalfa be harvested in a season
Definition
five times
Term
Which of the following is sown on more acres in the United States
Definition
red clover
Term
Which of the following has stolons
Definition
white clover
Term
For which of the following is birdsfoot trefoil most suited
Definition
pasture
Term
Which of the following is best adapted to dry conditions
Definition
sainfoin
Term
How much of the peanut crop produced in the United States is consumed as peanut butter
Definition
50%
Term
Which of the following is NOT typical color type for field pea
Definition
brown
Term
Which of the following is a typical color type for field pea
Definition
green, yellow, cream
Term
_________ soybean varieties have continual stem elongation throughout the growing season.
Definition
Inderterminate
Term
Soybeans contain tow amino acides
Definition
lysine and tryptophane
Term
Based on average and economic value, which of the following crops is most important to the US
Definition
corn
Term
On a corn plant, the male flowers are called:
Definition
the tassel
Term
Which is the most widely grown corn
Definition
dent
Term
Which of the following corn types has very little starch
Definition
flint
Term
The leading use of corn is
Definition
livestock feed
Term
Which of the following crop is known as the staff of life
Definition
wheat
Term
The number of tillers on a wheat plant typically ranges from
Definition
3-5
Term
Which types of flour is made by bringing the entire wheat grain
Definition
whole wheat flour
Term
Which of the following is used like a cereal grain but is actually a member of the polygonaceae family
Definition
buckwheat
Term
Wild rice is a
Definition
cool season annual plant
Term
The two leading states for commercial wild rice production are
Definition
Minnesota and California
Term
Which of the following grains is known for its cholesterol-lowering capability
Definition
oats
Term
Grain sorghum is produced primarily in which two states
Definition
Kansas and Texas
Term
Which of the following is commonly used as a winter cover crop
Definition
rye
Term
Which of the following grains is adapted to high altitutes
Definition
quinoa
Term
Which of the following is a native grass with potential use of biofuel
Definition
switchgrass
Term
Tall fescue toxicosis is due to which of the following
Definition
overeating the grass
Term
Two commonly used cereal crops native to the Americas are
Definition
corn and wild rice
Term
The_____ us the area if the United States where corn average and production are concentrated
Definition
Corn Belt
Term
_____ wheats are planted in the fall and mature in the spring
Definition
Winter
Term
______ wheats are planted in the spring and mature that fall
Definition
Spring
Term
The compound protein in wheat that is important in bread making is
Definition
gluten
Term
The tow types of subspecies of rice that are widely grown are
Definition
jaronica and indica
Term
______ is the process where the seed coating of barley is removed for human consumption
Definition
Pearling
Term
_______ is the most widely grown millet
Definition
Proso millet
Term
Corn is usually harvested at grain moisture levels of
Definition
25%
Term
Soybean is typically harvested with grain moisture levels of
Definition
13%
Term
At the end of the season the completion of the conduction cycle for the crop is the
Definition
harvest
Term
__ is an old english term that describes a unit of volume for measuring crop yield
Definition
Bushel
Term
____ the stage of the development in grains when the maximum accumulation of dry matter in the seed occurs
Definition
Physiological maturity
Term
____ is the moisture content of the crop when grain can be harvested with a combine with minimum field loss
Definition
Harvest maturity
Term
_____ is when crop plants fall over in the field
Definition
lodging
Term
___ the process of shelling grains
Definition
Threshing/husking/shucking
Term
Tied bundles of small grains are called
Definition
sheaves
Term
tied bundles of corn are called
Definition
shocks
Term
After removal of the ears of corn the remaining stalks, leaves, and husks are called
Definition
stovers
Term
_________ is the use of computer sending and data collection equipment to allow for accurate site-specific management deisions
Definition
Precision agriculture
Term
The toxic compounds that stage fungi can form are called
Definition
mycotoxins
Term
The vegetative portion of plants used for livestock fed are
Definition
forages
Term
There three components of forage quality are
Definition
intake, nutritive value, and anitquality factors
Term
______ is the direct utilization of forages by grazing animals in the field
Definition
Harvesting of forages
Term
_______ is the system where animals have a large pasture and move about freely
Definition
continuous grazing
Term
____ is where pasture is divided into paddock and grazing is controlled
Definition
Rotational grazing
Term
The two types of grazing lands are
Definition
pasture and rangeland
Term
Cotton can be harvested using
Definition
a picker or a stripper
Term
High moisture forage that is stored anaerobically is called
Definition
silage
Term
Bud alfalfa development stage
Definition
stems have flower buds but none are open
Term
vegetative alfalfa development stage
Definition
stems have leaves but no flowers
Term
flowering alfalfa development stage
Definition
flowers are open
Term
seed alfalfa development stage
Definition
flowers have pollinated and set seed
Term
flowering grass development stage
Definition
grasses are pollinating
Term
boot grass development stage
Definition
stems have elongated but no flowers are formed
Term
vegetative grass development stage
Definition
plant has only leaves
Term
seed grass development stage
Definition
mature seed is present
Term
stem elongation in grass development stage
Definition
inflorescence is enclosed in sheath of the last leaf
Term
haylage moisture content
Definition
40-60%
Term
direct cut haylage moisture content
Definition
80-85%
Term
wilted haylage moisture content
Definition
60-75%
Term
A plant is classified as a weed if it
Definition
causes economic loss to a crop
is harmful to humans and livestock
is detrimental to wildlife or ecosystems
Term
Weeds that are especially injurious are classified by the government as
Definition
toxic
Term
The long-term persistence of a certain annual weed species is most likely due to
Definition
high seed production
Term
Milk sickness is caused when people drink milk from cows who have consumed what weed
Definition
white snake root
Term
The first defense against weeds is
Definition
prevention of establishment
Term
Which agency of the USDA is responsible for precutting the introduction of noxious weeds
Definition
APHIS
Term
In what year were GMO crops introduced
Definition
1996
Term
Which type of ingredients are added to a herbicide formulation to facilitate application and handling or to increase activity
Definition
inert ingredient
Term
LD50 is a measure of
Definition
toxicity
Term
The mode of action for glyphosate is
Definition
amino acid synthesis inhibitor
Term
The mode of action for 2,4-D is
Definition
growth regulator
Term
The mod of action for atrazine is
Definition
photosynthesis inhibitor
Term
Which type of herbicide is applied to foilage
Definition
contact
Term
Which type of herbicide would be most useful on an established perennial wood
Definition
systemic
Term
Which would NOT be an appropriate strategy to prevent herbicide resistance
Definition
using extra herbicide
Term
Which would be an appropriate strategy to precent herbicide resistant
Definition
Crop rotation
herbicide rotation
tillage
Term
Grassy weeds would be easiest to control in which crop
Definition
soybeans
Term
Weeds that live on land are classified as
Definition
terrestrial
Term
Weeds that are a problem in the water are classified as
Definition
aquatic
Term
There three life cycles weeds can be classified by are
Definition
biennial, annual, and perennial
Term
______ annual weeds are those that germinate in the fall are vegetative in the winter, and flower in the following spring
Definition
Winter
Term
Biennial plants require_____ seasons to complete their life cycle
Definition
2
Term
Rye infected with Claviceps pursuer forms
Definition
ergot
Term
ergot causes
Definition
hallucinations
Term
The reservoir of weed seeds in the soil is called the
Definition
seed bank
Term
Weeds can develop___ to herbicides with detoxifying or morphological modifications
Definition
tolerance
Term
The most widely used herbicide is
Definition
glyphosphate
Term
The three names on the herbicide label
Definition
Trade name
Common name
chemical name
Term
Type of herbicide application based on timings are
Definition
preplant
preemergence
postermergence
post harvest
Term
The visual response by the plant to the pathogen is
Definition
a disease
Term
Which of the following is NOT an abiotic disease factor
Definition
parasitic plant
Term
What are abiotic disease factors
Definition
Water deprivation
soil acidity
herbicide
Term
Which of the following organisms reproduces by spores
Definition
fungus
Term
Rust diseases are caused by which group of fungi
Definition
basidiomycetes
Term
Stem rust can have up to how many different spore stages
Definition
five
Term
Damping off affects which growth stage
Definition
seedling
Term
The disease associated with the Salem witch trials is
Definition
ergot
Term
Leaf spots due to bacteria tend to be
Definition
angular
Term
Bacterial wilt occur when when the bacteria invade the
Definition
vascular system
Term
Common and halo blight affect which crop species
Definition
beans
Term
Which plant family does tobacco mosaic virus primarily infect
Definition
potato family
Term
Aster yellows is caused by which group of organisms
Definition
mycoplasma-like organisms
Term
Nematodes are a type of
Definition
roundworm
Term
The best strategy for mentored control would be
Definition
crop rotation
Term
The soybean cyst nematode causes damage by
Definition
feeding on roots
Term
The corn ear worm feeds on what part of the corn
Definition
kernels
Term
A potential biocontrol being evaluated for use on soybean aphid is which of the following
Definition
Binodoxys communis
Term
A______ is the progressive deviation from a plants normal development, appearance, or function
Definition
plant disease
Term
The three factors of the disease triangle are
Definition
susceptible host
pathogen
favorable environment
Term
Organisms that require living host tissue to obtain nutrients for survival are
Definition
obligate parasites
Term
The disease-causing microorganisms that have both RNA and DNA but lack true cell walls are called
Definition
mycoplasma-like organisms
Term
In fields with nematode infestations, symptomatic plants grow in circular localized areas called
Definition
hot spots
Term
Parasitic flowering plants lack root systems and instead absorb water nutrients through organs called
Definition
haustoria
Term
haustoria =
Definition
specialized roots
Term
The gradual developmental stages of an insects life cycle from egg to adult is called
Definition
metamorphosis
Term
Insects can have one of these types of life cucles
Definition
No metamorphosis
incomplete metamorphosis
complete metamorphosis
Term
_______ is the management strategy to keep pests at levels that will not cause economic loss
Definition
Integrated pest management
Term
The two general categories of fungicides
Definition
protectants and systematics
Term
ergot
Definition
claviceps purpurea
Term
Chemical pest management
Definition
fungicide
insecticide
Term
cultural pest management
Definition
sanitation
crop rotation
irrigation
Term
mechanical pest management
Definition
tillage
handpicking
Term
genetic pest management
Definition
resistant cultivar
Term
biological pest management
Definition
green manure
beneficial insects
Term
Which of the following is allowed in organic agriculture
Definition
compost
Term
For how many years must land be without prohibited materials to be certified
Definition
3
Term
How often are certified organic farms inspected
Definition
once a year
Term
In terms of organic sales what are the two largest categories
Definition
fruits/ vegetables and dairy
Term
The federal program that regulates organic agriculture in the US is called
Definition
National organic program
Term
The term local is defined by congress as food grown not farther than which distance
Definition
100 miles
Term
Yields in organic agriculture as compared to conventional agriculture tend to
Definition
vary by crop
Term
Which is considered to be one of the biggest challenges in organic production
Definition
weed control
Term
A vigorously growing crop used to suppress weeds is called a
Definition
smother crop
Term
Primary tillage can be performed with which of the following
Definition
moldboard plow
Term
Which of the following weed control operations has the most potential to damage crops
Definition
broadcast cultivation
Term
___ is the state that leads in organic produce
Definition
California
Term
___ is a cultural weed control strategy where crops are planted later than normal
Definition
Delayed Planting
Term
________is a weed control operation performed before the crop breaks the surface of the soil
Definition
Broadcast cultivation
Term
_________ is a weed control operation that kills weeds between rows
Definition
Inter-row cultivation
Term
______ is a weed control that uses flaming propane burners to replier the cells of weeds
Definition
Flame Weeding
Term
The amount of nitrogen a legume or green manure provides to the next crop is called
Definition
nitrogen credit
Term
The three most common fertilizers in organic agriculture are
Definition
green manure
livestock manure
compost
Term
White potatoes originated in
Definition
South America
Term
Which of the following crops is NOT in the nightshade family
Definition
sweet potato
Term
The leading producer of sweet potatoes is
Definition
Asia
Term
Tapioca is made of
Definition
cassava
Term
Which of the following is native to North America
Definition
Jerusalem artichoke
Term
Taro is grown for which plant part
Definition
corms
Term
Cassava is which of the following
Definition
cool season annual
Term
Seeds are produced in sugar beet in the
Definition
second year
Term
Plantains are which type of crop
Definition
starch crop
Term
Opium poppy is grown for which of the plant parts
Definition
sap and seed
Term
Sugar cane is native to which of the following regions
Definition
the South Pacific and India
Term
the leading fiber crop in the world is
Definition
cotton
Term
Where are the fibers of cotton found
Definition
attached to the seeds
Term
Where are the fibers of flax found
Definition
in the stem
Term
The cloth produced from flax is
Definition
linen
Term
Flax is which of the following
Definition
cool season annual
Term
Which of the following is NOT used as a fiber crop
Definition
sunflower
Term
Which of the following is NOT an oil crop
Definition
cotton
Term
Canola is which of the following
Definition
a cool season annual
Term
Potato plants store energy in the form of starch in enlarged underground stems called
Definition
tubers
Term
Dormant buds on tubers are called
Definition
eyes
Term
Members of the nightshade family contain compounds called_____ which can be toxic if consumed in high qualities
Definition
alkaloids
Term
____ is a drug crop and one of the top 10 crops grown in the United States
Definition
Tobacco
Term
______ is the alkaloid in tobacco that is primarily responsible for the addictive and stimulating properties
Definition
Nicotine
Term
Sweet potatoes are a member of the _____
Definition
morning glory family
Term
The seed-bearing capsules of cotton are called
Definition
bolls
Term
______ is produced from flax and used in paints and varnishes
Definition
Linseed oil
Term
_____ have back seeds
Definition
Oilseed sunflowers
Term
___ have black and white stripped seeds
Definition
confectionary sunflowers
Term
Sunflowers are a member of the
Definition
asteraceae/composite family
Term
The four commonly grown types of potatoes are
Definition
russet white
round red
round white
long white
Term
sugar beet
Definition
beta vulgaris
Term
white potato
Definition
solanum tuberosum
Term
sunflower
Definition
helianthus annus
Term
flax
Definition
linum usitatissimum
Term
sweet potato
Definition
ipomoea batatas
Term
sugar cane
Definition
saccharum officinarum
Term
tobacco
Definition
nicotiana tobacum
Term
cotton
Definition
gossypium hirsutum
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