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Agronomy CDE Practice Test Questions (1).
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Agronomy CDE Practice Test QuestionsWhich of the following have rhizomes? - CORRECT ANSWER-Intermediate
Wheatgrass
Alfalfa needs renovation every ____________? - CORRECT ANSWER-4-6
The greatest advantage of birdsfoot trefoil is______________. - CORRECT
ANSWER-It doesn't cause bloat
Sweetclover contains _______________, which may cause bleeding disease in
livestock. - CORRECT ANSWER-Coumarin
An ear-shaped appendage, as at the base of barley and wheat leaves is called a
________________. - CORRECT ANSWER-Auricles
What is the beard or bristle extending from the tip or back of the lemma of a grass
flower? - CORRECT ANSWER-Awn
What are the glumes and light plant tissue fragment broken in threshing? -
CORRECT ANSWER-Chaff
What is the matured body of an ovule? - CORRECT ANSWER-Seed
The typical inflorescence of wheat is called _____________. - CORRECT
ANSWER-Spike
The legal weight of barley is ______________ pounds. - CORRECT ANSWER-48
_____________ has small hairy auricles. - CORRECT ANSWER-Barley
Wheat is ready to harvest with a combine when the moisture content is
___________ or less. - CORRECT ANSWER-14%
_______________ is not a special grade of oats. - CORRECT ANSWER-Light Oats
Barley is considered to be about _____________ as valuable as corn for feed,
pound for pound. - CORRECT ANSWER-85-90%
Good seed-soil contact is important so that: - CORRECT ANSWER-The more rapidly
water can move from the soil into the seed.
,Fibrous roots have: - CORRECT ANSWER-A high surface area to volume ratio
Growth stage of a wheat plant when the first node moves above the soil surface: -
CORRECT ANSWER-Jointing
A grass stem is called a - CORRECT ANSWER-Culm
The stomata have two functions, one is the point of entry for CO2 and the second is?
- CORRECT ANSWER-Transpiration
Crested wheatgrass is usually bunch grass because: - CORRECT ANSWER-It
doesn't usually form rhizomes.
Legumes, such as peas, beans, and alfalfa, convert atmospheric nitrogen into
organic nitrogen due to: - CORRECT ANSWER-Rhizobium, a bacteria that can enter
the root system
Alfalfa is cross-pollinated primarily by: - CORRECT ANSWER-Insects
An allele: - CORRECT ANSWER-Is an alternate form of a gene.
Oats produce a satisfactory crop on a wide range of soil types;however, heavy,
poorly drained clays are likely to cause the crop to: - CORRECT ANSWER-Lodge
Early planted winter wheat may result in all of the following except: - CORRECT
ANSWER-Weak root system
The field bean (dry edible bean) originated in what country? - CORRECT
ANSWER-Mexico
Corn is a ____________ plant. - CORRECT ANSWER-Long day
Crop lodging is most likely caused by? - CORRECT ANSWER-Not selecting proper
varieties
_____________ is the collective term for the petal of a flower. - CORRECT
ANSWER-Corolla
The inoculation of legumes commonly consists of? - CORRECT ANSWER-Putting
bacteria on the seed
Winter wheat sown in the spring will not produce heads because it has not been: -
CORRECT ANSWER-Vernalized
, Types of wheat grown in the U.S. - CORRECT ANSWER-Durum, Hard red spring,
Hard red winter, Soft red winter
Properly hardening winter wheat involves? - CORRECT ANSWER-Gradually
lowering temperature and short days
Hardened plants have ______________ moisture content in their leaves than
unhardened plants. - CORRECT ANSWER-Lower
Which of the following is principally used for flour that makes pasta? - CORRECT
ANSWER-Durum
Which of the following is recognized as the premium miller's wheat for bread flour? -
CORRECT ANSWER-Hard red winter
In selection of a variety of wheat to grow, the number one consideration should be? -
CORRECT ANSWER-Adapted to the area
Wheat millers are very concerned about? - CORRECT ANSWER-Gluten Content
The "safe date" for sowing winter wheat is based on the potential for damage from? -
CORRECT ANSWER-Hessian Fly
Drilling wheat is superior to broadcasting because: - CORRECT ANSWER-Stands
are more uniform
Wheat should be planted at a depth of? - CORRECT ANSWER-1-2 inches
Barley ranks _________ in production among cereal crops grown in the U.S. -
CORRECT ANSWER-Second
The usual uses for barely include: - CORRECT ANSWER-Malt & Feed
By products of the malting industry include: - CORRECT ANSWER-Shorts
By products of the brewing industry include: - CORRECT ANSWER-Distillers grain
Based on the rows of kernels we have _______ species of barely grown in the U.S.
today. - CORRECT ANSWER-2
All varieties of barely have a common need for a climate which is: - CORRECT
ANSWER-Cool and moist
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