Which type of soil water, making up roughly 15 percent of soil moisture content, is mostly unavailable to plants?
Correct answer B. Hygroscopic water
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Agriculture MCQs
Page 52 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 52 of 135
Why were the earliest organisms on Earth more like plants than animals?
Correct answer B. Plants can manufacture their own food material
Water application efficiency increases when the plot to be irrigated is of what shape?
Correct answer D. Rectangle
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How can plants be made resistant to disease?
Correct answer D. Breeding with the wild variety
For a given discharge, what is the depth of flow at which the specific energy is at its minimum called?
Correct answer C. Critical depth
What is an individual with two identical alleles of a gene called?
Correct answer D. Homozygous
What is the usual permissible velocity of water flowing through a concrete-lined tunnel?
Correct answer B. 4 – 5m/sec
Maize has 10 pairs of chromosomes. If all its genes were mapped, how many linkage groups would there be?
Correct answer C. 10
What is the type of flow called in which water particles rotate about their own mass centre while moving in the direction of flow?
Correct answer A. Rotational flow
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Transfer and deletion involving several genes is classified as which type of mutation?
Correct answer B. Chromosomal mutation
Which property explains why mercury does not wet glass?
Correct answer D. Surface tension
What is a diagram of an organism’s chromosomes arranged according to their size called?
Correct answer C. Ideogram
Which instrument measures the velocity of gases?
Correct answer A. Hot wire anemometer
Where are two allelic genes located?
Correct answer B. Two homologous chromosomes
The hydraulic gradient line represents the sum of which heads?
Correct answer C. Pressure head + datum head
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Where do liquid particles have maximum velocity in a pipe flowing full?
Correct answer B. Centre of the pipe
Capsicum is a rich source of which vitamin?
Correct answer C. Vitamin D
What causes heterosis?
Correct answer D. All of the above
What is an earth embankment built along one or both sides of a river, some distance back from its banks, to control flooding called?
Correct answer D. Marginal embankment
Who proposed the gene-for-gene hypothesis?
Correct answer D. Flor (1956)