Biology
Plant Propagation Techniques
660 Questions
Plant propagation techniques cover both natural and artificial methods of cultivating plants, including micropropagation, tissue culture, and layering. These botanical concepts evaluate how desirable characteristics are multiplied and transferred into new plants. Questions on this topic routinely feature in the biology segment of various state and central competitive exams.
Micropropagation methodsArtificial vegetative propagationPlant tissue cultureLayering techniquesMeristem differentiation
Plant Propagation Techniques Questions
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ex situ conservation
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in situ conservation
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horticulture
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tissue culture
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breeding
A
Correct answer
Explanation
It is the process of protecting an endangered species of plant or animal outside its natural habitat.
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suckers
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cuttings
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buddings
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inarching
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dividing clumps for pseudo bulbs
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cuttings
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seed and tissue culture
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All the above
D
Correct answer
Explanation
Orchids can be propagated through multiple methods including dividing clumps with pseudobulbs, cuttings, and seed and tissue culture. Different orchid species and growing conditions determine which method works best. The use of multiple techniques allows for flexibility in commercial and amateur orchid cultivation.
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seed sowing
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grafting
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tissue culture
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scaling
D
Correct answer
Explanation
The plants of family Liliaceae are grown by scaling.
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Seed sowing
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Tissue culture
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Vegetative propagation
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Scaling
D
Correct answer
Explanation
Bulbils are produced during scaling.
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Nutrient Broth
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Basal medium
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Potato dextrose broth (PDB)
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Sabrauds agar
B
Correct answer
Explanation
Nutrient requirement varies from species to species. Therefore, a basal medium is developed which contains inorganic salts and elements to which growth regulators are added depending upon the species.
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Differentiation stage
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Multiplication stage
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Initiation stage
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Selection stage
B
Correct answer
Explanation
Callus development starts at the multiplication stage.
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sterilising agent
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disinfectant
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sterilising agent and disinfectant
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mordant
A
Correct answer
Explanation
Chlorine water acts as a surface steriliser.
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UV-radiation
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filter sterilisation
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autoclaving
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dry heat
C
Correct answer
Explanation
Tissue culture medium is sterilised by autoclaving.
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Iris
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Potato
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Tulip
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Daffodil
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Gladiolus
E
Correct answer
Explanation
Corm is a swollen, and vertical underground stem. It is composed of a swollen base surrounded by scale leaves. For example, colocasia, gladiolus, etc.
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Tuber
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Bulb
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Corm
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Stolon
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Sucker
E
Correct answer
Explanation
Sucker is developed as a result of vegetative propagation in pineapple plant.
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Water hyacinth
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Butter cup
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Colocasia
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Chrysanthemum
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Tulip
A
Correct answer
Explanation
Water hyacinth shows vegetative propagation by offset.
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A short and thick branch
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Develops from the axil of the mother plant
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Grows for some distance parallel to the surface
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Gets decayed once new plant is established
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Water lettuce shows vegetative propagation by offset
D
Correct answer
Explanation
The runner gets decayed once the new plant is established. However, offset does not show any such feature.
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Begonia
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Daffodil
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Colocasia
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Galdiolus
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Iris
A
Correct answer
Explanation
Some plants such as Bryophyllum and Begonia produce adventitious buds on their leaves and propagate vegatitively.
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whip grafting
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cleft grafting
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bud grafting
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leaf cutting
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stem cutting
A
Correct answer
Explanation
The process in which stock and scion are obliquely cut and bound until the cambia are fused is called whip grafting.