Agronomy Exam-Questions and Correct Answers (Expert verified) / Latest
Update 2024/2025/100% Pass
Which of the following have rhizomes? - ✔✔Intermediate wheatgrass
Alfalfa needs renovation every - ✔✔4-6 years
the greatest advantage of birdsfoot trefoil is - ✔✔does not cause bloat
Sweetclover contains_______, which may cause bleeding disease in livestock - ✔✔Coumarin
An ear-shaped appendage, as at the base of barley and wheat leaves is called? - ✔✔Auricles
What is the beard of bristle extending from the tip or back of the lemma of a grass flower? -
✔✔Awn
What are the glumes and light plant tissue fragment broken in threshing? - ✔✔Chaff
What is the matured body of an ovule? - ✔✔Seed
The typical inflorescence of wheat is called? - ✔✔Spike
The legal weight of barley is ________ pounds? - ✔✔48
_____________ has small airy auricles - ✔✔Barley
Wheat is ready to harvest with a combine when the moisture content is _______ or less -
✔✔14%
__________ is not a special grade of oats - ✔✔Light
,Barley is considered to be about ________ as valuable as corn for feed, pound for pound. -
✔✔85-90%
Good seed-soil contact is important so that: - ✔✔Because the more contact the surface of
the seed has with the surrounding soil, the more rapidly water can move from the soil into
the seed.
Fibrous roots have: - ✔✔A high surface to volume ration
Growth stage of a wheat plant when the first node moves above the surface: - ✔✔Jointing
A grass stem is called a: - ✔✔Culm
The stomata have two functions, one is the point of entry for CO2 and the second is: -
✔✔Transpiration
Crested wheatgrass is usually a bunch grass because: - ✔✔It usually doesn't form rhizomes
legumes, such as peas, beans, and alfalfa, convert atmospheric nitrogen into organic
nitrogen due to: - ✔✔Rhizobium, a bacteria that can enter the root system
Alfalfa is cross-pollinated primarily by: - ✔✔Insects
An allele: - ✔✔Is an alternate form of a gene
In wheat, from flower to dead ripe takes: - ✔✔25-40 days
Insect pollinators are very important for pollination of: - ✔✔Alfalfa
, The leading export country of wheat is: - ✔✔European Union
Oats produce a satisfactory crop on a wide range of soil types; however, heavy, poorly
drained clays are likely to cause the crops to: - ✔✔Lodge
Water vapor loss by plants occurs mainly through the leaves by a process called: -
✔✔Transpiration
Which of these crops is a biennial? - ✔✔Sugar beet
Early planted winter wheat may result in? - ✔✔High moisture use
Root rot injury
Wheat streak mosaic
The field bean originated in what country? - ✔✔Mexico
higher digestible forage would be low in? - ✔✔Lignin
Corn is a _____ plant - ✔✔Long day
Crop lodging is most likely cause by? - ✔✔Not selecting proper varieties
The ideal moisture content at which to store forage for silage is? - ✔✔68%
_______ is the collective term for the petal of a flower. - ✔✔Corolla
The inoculation of legumes commonly consists of? - ✔✔Putting bacteria on the seed.
Update 2024/2025/100% Pass
Which of the following have rhizomes? - ✔✔Intermediate wheatgrass
Alfalfa needs renovation every - ✔✔4-6 years
the greatest advantage of birdsfoot trefoil is - ✔✔does not cause bloat
Sweetclover contains_______, which may cause bleeding disease in livestock - ✔✔Coumarin
An ear-shaped appendage, as at the base of barley and wheat leaves is called? - ✔✔Auricles
What is the beard of bristle extending from the tip or back of the lemma of a grass flower? -
✔✔Awn
What are the glumes and light plant tissue fragment broken in threshing? - ✔✔Chaff
What is the matured body of an ovule? - ✔✔Seed
The typical inflorescence of wheat is called? - ✔✔Spike
The legal weight of barley is ________ pounds? - ✔✔48
_____________ has small airy auricles - ✔✔Barley
Wheat is ready to harvest with a combine when the moisture content is _______ or less -
✔✔14%
__________ is not a special grade of oats - ✔✔Light
,Barley is considered to be about ________ as valuable as corn for feed, pound for pound. -
✔✔85-90%
Good seed-soil contact is important so that: - ✔✔Because the more contact the surface of
the seed has with the surrounding soil, the more rapidly water can move from the soil into
the seed.
Fibrous roots have: - ✔✔A high surface to volume ration
Growth stage of a wheat plant when the first node moves above the surface: - ✔✔Jointing
A grass stem is called a: - ✔✔Culm
The stomata have two functions, one is the point of entry for CO2 and the second is: -
✔✔Transpiration
Crested wheatgrass is usually a bunch grass because: - ✔✔It usually doesn't form rhizomes
legumes, such as peas, beans, and alfalfa, convert atmospheric nitrogen into organic
nitrogen due to: - ✔✔Rhizobium, a bacteria that can enter the root system
Alfalfa is cross-pollinated primarily by: - ✔✔Insects
An allele: - ✔✔Is an alternate form of a gene
In wheat, from flower to dead ripe takes: - ✔✔25-40 days
Insect pollinators are very important for pollination of: - ✔✔Alfalfa
, The leading export country of wheat is: - ✔✔European Union
Oats produce a satisfactory crop on a wide range of soil types; however, heavy, poorly
drained clays are likely to cause the crops to: - ✔✔Lodge
Water vapor loss by plants occurs mainly through the leaves by a process called: -
✔✔Transpiration
Which of these crops is a biennial? - ✔✔Sugar beet
Early planted winter wheat may result in? - ✔✔High moisture use
Root rot injury
Wheat streak mosaic
The field bean originated in what country? - ✔✔Mexico
higher digestible forage would be low in? - ✔✔Lignin
Corn is a _____ plant - ✔✔Long day
Crop lodging is most likely cause by? - ✔✔Not selecting proper varieties
The ideal moisture content at which to store forage for silage is? - ✔✔68%
_______ is the collective term for the petal of a flower. - ✔✔Corolla
The inoculation of legumes commonly consists of? - ✔✔Putting bacteria on the seed.
