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AGRONOMY EXAM QUESTIONS AND ANSWERS VERIFIED -5
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AGRONOMY EXAM QUESTIONS AND ANSWERS VERIFIED -5
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AGRONOMY EXAM QUESTIONS AND ANSWERS VERIFIED #5Physical characteristics are used to identify plants which include Life Cycle, Form,
Foliage Retention, Plant Parts, and Use & Location - correct answer True
Plants which complete their life cycle in one season (year) or less are classified as what
type of plants? - correct answer Annual
Completes it's life cycle in two growing seasons. 1st year it produces only basal leaves.
Second year it "bolts" grows a stem, flowers and fruit and dies in the second season. -
correct answer Biennial
A plant that grows year after year without replanting and usually produces seed each
year. Survive winter as dormant underground structures (roots, rhizomes, tubers) -
correct answer Perennial
Carl Linnaeus was a physician from what country? - correct answer Sweden
Roots of scientific names come from- - correct answer plant descriptions, region and the
name of the discoverer
Cultivars in plants are man made, true of false? - correct answer true
There are over ____________ different species of monocot plants in the world? -
correct answer 60,000
There are over _____________ different species of dicot plants in the world? - correct
answer 185,000
Monocot plants have flower parts in what number? - correct answer 3s
Dicot plants have flower parts in what number? - correct answer 4s and 5s
Monocot plants have _________ veins and _____________ vascular bundles. - correct
answer parallel, scattered
Monocots have what type of germination. - correct answer hypogeal
What deals with the form and structure of plants? - correct answer morphology
What deals with the study of internal tissues and cells of plants? - correct answer plant
anatomy
What is a small embryonic plant enclosed in a covering call the seed coat? - correct
answer seed
, The miniature plant which will grow when conditions are favorable is called? - correct
answer embryo
The food supply for the plant is called? - correct answer endosperm
Which grass has over 2 million seeds per pound? - correct answer bluegrass
Germination is when the seed embryo goes from a dormant state to an active, growing
state, true or false? - correct answer true
Most crop species require the temperature to be between ___&___ degrees F to grow. -
correct answer 65-86
What are the steps of breaking dormancy? - correct answer 1) break down of barriers
2) change in physical state
3) destruction and dilution
4) growth promoters
The three stages of germination are- - correct answer pregermination, germination, post
germination.
The percentage of moisture that is need for corn to start germination is? - correct
answer 35%
When seeds imbibe water- - correct answer hydrolytic enzymes are activated that break
down food resources
Scarification is the breaking of the seed coat through fire, insects, digestion, fungi,
mechanically or with chemicals - correct answer true
Embryo dormancy is where seeds must go through a ____________ period before
germinating - correct answer chilling
Oxygen is required for respiration, true or false? - correct answer true
What are the two types of germination? - correct answer Epigeal (dicot) and hypogeal
(monocot)
Monocot seed coat- - correct answer pericarp
What is the layer that is the starchy interior that serves as food for germinating seed
called in monocot seed anatomy? - correct answer endosperm
What is the embryonic "seed leaf" called in monocot seed anatomy? - correct answer
cotyledon
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