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WorksheetsCorn and Its Production
Total questions: 39
Worksheet time: 22mins
The most valuable crop produced in the U.S. is
Wheat
Soybeans
Millet
Corn
Popcorn
There are _________________ varieties of Corn
4
6
7
5
All corn is yellow
True
False
Dent corn gets is name because
The starch in the crown expands during drying
The starch at the end of the crown shrinks during drying
There is a loss of starch as the plan matures
This has nothing to do with the starch in the corn kernal
The black layer in the corn shrinks
Corn that is resistant to many insects and can be shipped overseas because of its kernel hardness is
Sweet Corn
Dent Corn
Floury Corn
Flint Corn
Stone Corn
A corn that is composed primarily of soft starch with a thin covering of hard starch and is good for making flour is
Dent Corn
Flint Corn
Floury Corn
Sweet Corn
Popcorn
Has kernels that are smaller than flint corn kernels
Has kernels that are composed of a hard, flinty starch
Has kernels that are usually white or yellow, but they may be red, blue, or brown
Has moisture inside the kernel that when heated becomes steam. This causes pressure that causes the kernel to explode
All of these answers are true
Sweet corn is picked while still immature
Because it is easier to harvest when immature
Because it is the time when the corn is the most attractive to look at and sells better
To keep animals from eating in the field
To retain the high sugar content
It is easier to take from the stalk
Corn whose kernels are enclosed in a husk or pod is called
Sweet corn
Husk corn
Is a very valuable type of corn
Pod corn
Corn is used for livestock feed because
A. It is palatable
B. Is high in Carbohydrate energy
Both A and B
Only A
Only B
Corn plants are:
Members of the grass or Gramineae family
Are classified as annuals
Are classified as monocots
All of these are true
A corn plants leaves can be as much as 4 feet long
False
True
Neither Corn does not have leaves
Corn plants
A. Have one tap root
B. Are supported by smaller roots called prop roots,
C. Have fibrous root systems
Both A and B
Both B and C
Corn is monoecious, so
Has only male flowers
Has only female flowers
Has no flowers at all
It has male and female flowers on the same plant
Female reproductive part of the corn plant is the
Silk
Ear
Husk
Pod
Corn Silk is
A group of elongated styles
Attached to every ovary on an ear of corn
Pollinated to create a corn kernel
All of these are true
A corn tassel
Is the male part of the plant
Produces pollen
Is at the apex of the stem
All of these are true
None of these are true
Corn has been domesticated since about 9000 B.C.
True
False
Wisconsin is one of the ten major corn producing states
Yep
Nope
The United States produces 38% of the worlds corn
Yes sir
No sir
The possibility exists but I can't tell definitively without more data
Corn varieties are selected on(select all of the correct answers)
Standability
Height and number of ears per stalk
Resistance to insects
Growing degree days
Climate of the area in which it is being grown
Growing Degree Days
Are the number of days it has been since corn was planted
Are a measure of the temperature requirements for the best growth.
Are the number of days until the expected first frost
None of these are correct
Corn does not grow towards maturity at a temperature below
65 degrees
75 degrees
50 degrees
60 degrees
Pest resistant varieties of corn
Can save on pest management costs
Increase yields of corn
Neither of these answers
Both of these answers
Frost damage to corn can reduce yield by
Damaging leaves and causing delayed growth
Killing the leaves
Reducing the quality of the corn
None of these
All of these
This is
Corn Rootworm
Armyworm
Corn Borer
Corn Earworm
This is
Corn Earworm
Chinch Bug
Corn Borer
Armyworm
This is
Ear worm
Army worm
Chinch bug
Corn Borer
This is
Army worm
Chinch bug
Corn Borer
Nematode
This is
Corn root aphid
Corn leaf aphid
Chinch Bug
Rootworm
A monocotyledon is a plant with two leaves when it sprouts
True
False
A Dicotyledon is a plant with only one leaf when it sprouts
True
False
Which of these are characteristic of a Monocot?
Single cotyledon
Parallel veins in the leaves
Flower parts in threes or multiples of three
Store food in seeds
No secondary growth
Which are true of a Dicot?
Two Cotyledons – leaves
Store food in seeds
Veins in the leaves reticulated/net-like
Secondary growth – Think trees and lignin
What is the purpose of all tillage methods?
Provide good soil-seed contact
Incorporate crop residue sufficiently for good planting and cultivating
Have good tilth and permit rapid infiltration of rainfall
It makes the field look nice
