Agronomy CDE Practice Test Questions with
Answers
1.Which of the following have rhizomes?: Intermediate Wheatgrass
2.Alfalfa needs renovation every_____________?: 4-6
3.The greatest advantage of birdsfoot trefoil is .: It
doesn't cause bloat
4.Sweetclover contains , which may cause bleeding
disease in livestock.: Coumarin
5.An ear-shaped appendage, as at the base of barley and wheat leaves
is called a................................Auricles
6.What is the beard or bristle extending from the tip or back of the lemma
of a grass flower?: Awn
7.What are the glumes and light plant tissue fragment broken in threshing?-
: Chaff
8.What is the matured body of an ovule?: Seed
9.The typical inflorescence of wheat is called..............................Spike
10.The legal weight of barley is pounds.: 48
,11. has small hairy auricles.: Barley
12.Wheat is ready to harvest with a combine when the moisture content is
or less.: 14%
13. is not a special grade of oats.: Light Oats
14.Barley is considered to be about as valuable as corn
for feed, pound for pound.: 85-90%
15.Good seed-soil contact is important so that:: The more rapidly water
can move from the soil into the seed.
16.Fibrous roots have:: A high surface area to volume ratio
17.Growth stage of a wheat plant when the first node moves above the
soil surface:: Jointing
18.A grass stem is called a: Culm
19.The stomata have two functions, one is the point of entry for CO2 and
the second is?: Transpiration
20.Crested wheatgrass is usually bunch grass because:: It doesn't usually
form rhizomes.
21.Legumes, such as peas, beans, and alfalfa, convert atmospheric nitrogen
into organic nitrogen due to:: Rhizobium, a bacteria that can enter the
root system
, 22.Alfalfa is cross-pollinated primarily by:: Insects
23.An allele:: Is an alternate form of a gene.
24.Oats produce a satisfactory crop on a wide range of soil
types;however, heavy, poorly drained clays are likely to cause the crop to::
Lodge
25.Early planted winter wheat may result in all of the following except::
Weak root system
26.The field bean (dry edible bean) originated in what country?: Mexico
27.Corn is a plant.: Long day
28.Crop lodging is most likely caused by?: Not selecting proper varieties
29. is the collective term for the petal of a flower.: Corolla
30.The inoculation of legumes commonly consists of?: Putting bacteria on
the seed
31.Winter wheat sown in the spring will not produce heads because it has
not been:: Vernalized
32.Types of wheat grown in the U.S.: Durum, Hard red spring, Hard red
winter, Soft red winter
33.Properly hardening winter wheat involves?: Gradually lowering
temperature and short days
Answers
1.Which of the following have rhizomes?: Intermediate Wheatgrass
2.Alfalfa needs renovation every_____________?: 4-6
3.The greatest advantage of birdsfoot trefoil is .: It
doesn't cause bloat
4.Sweetclover contains , which may cause bleeding
disease in livestock.: Coumarin
5.An ear-shaped appendage, as at the base of barley and wheat leaves
is called a................................Auricles
6.What is the beard or bristle extending from the tip or back of the lemma
of a grass flower?: Awn
7.What are the glumes and light plant tissue fragment broken in threshing?-
: Chaff
8.What is the matured body of an ovule?: Seed
9.The typical inflorescence of wheat is called..............................Spike
10.The legal weight of barley is pounds.: 48
,11. has small hairy auricles.: Barley
12.Wheat is ready to harvest with a combine when the moisture content is
or less.: 14%
13. is not a special grade of oats.: Light Oats
14.Barley is considered to be about as valuable as corn
for feed, pound for pound.: 85-90%
15.Good seed-soil contact is important so that:: The more rapidly water
can move from the soil into the seed.
16.Fibrous roots have:: A high surface area to volume ratio
17.Growth stage of a wheat plant when the first node moves above the
soil surface:: Jointing
18.A grass stem is called a: Culm
19.The stomata have two functions, one is the point of entry for CO2 and
the second is?: Transpiration
20.Crested wheatgrass is usually bunch grass because:: It doesn't usually
form rhizomes.
21.Legumes, such as peas, beans, and alfalfa, convert atmospheric nitrogen
into organic nitrogen due to:: Rhizobium, a bacteria that can enter the
root system
, 22.Alfalfa is cross-pollinated primarily by:: Insects
23.An allele:: Is an alternate form of a gene.
24.Oats produce a satisfactory crop on a wide range of soil
types;however, heavy, poorly drained clays are likely to cause the crop to::
Lodge
25.Early planted winter wheat may result in all of the following except::
Weak root system
26.The field bean (dry edible bean) originated in what country?: Mexico
27.Corn is a plant.: Long day
28.Crop lodging is most likely caused by?: Not selecting proper varieties
29. is the collective term for the petal of a flower.: Corolla
30.The inoculation of legumes commonly consists of?: Putting bacteria on
the seed
31.Winter wheat sown in the spring will not produce heads because it has
not been:: Vernalized
32.Types of wheat grown in the U.S.: Durum, Hard red spring, Hard red
winter, Soft red winter
33.Properly hardening winter wheat involves?: Gradually lowering
temperature and short days
