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Vegetative Propagation and Micropropagation

Description: Vegetative Propagation and Micropropagation
Number of Questions: 20
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Tags: Vegetative Propagation and Micropropagation Vegetative Propagation
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Which of the following plants shows natural vegetative propagation by roots?

  1. Ginger

  2. Onion

  3. Potato

  4. Dahlia

  5. Colocacia


Correct Option: D
Explanation:

Plants like Dahlia and Dalbergia show natural vegetative propagation by roots.

Which structure of plant contains food reserves and bears the bud?

  1. Pneumatophores

  2. Perennating organs

  3. Vegetative organs

  4. Gametes

  5. Fasciculated organs


Correct Option: B
Explanation:

The structure that contains food reserves and bears the bud is called a perennating organ.

Which of the following plants shows vegetative propagation by corm?

  1. Iris

  2. Potato

  3. Tulip

  4. Daffodil

  5. Gladiolus


Correct Option: E
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.

The horizontally growing stem that bears axillary buds covered by scale leaves is called __________.

  1. stolon

  2. sucker

  3. runner

  4. corm

  5. offset


Correct Option: C
Explanation:

Runner is a horizontally growing stem that bears axillary buds covered by scale leaves.

Which of the following develops as a result of vegetative propagation in pineapple plant?

  1. Tuber

  2. Bulb

  3. Corm

  4. Stolon

  5. Sucker


Correct Option: E
Explanation:

Sucker is developed as a result of vegetative propagation in pineapple plant.

Which of the following correctly defines 'Tuber'?

  1. It is a short, and swollen underground stem that bears buds and adventitious roots.

  2. It is a swollen underground stem that bears axillary buds in the axils of scale leaves.

  3. It is a modified stem, which contains one or more axillary buds that form the shoot of the new plant.

  4. It is a swollen, and vertical underground stem that comprises a swollen base surrounded by scale leaves.

  5. A stem that grows obliquely upwards and arches over to the ground at a node.


Correct Option: B

Which of the following plants shows vegetative propagation by offset?

  1. Water hyacinth

  2. Butter cup

  3. Colocasia

  4. Chrysanthemum

  5. Tulip


Correct Option: A
Explanation:

Water hyacinth shows vegetative propagation by offset.

Which of the following is not true about offset?

  1. A short and thick branch

  2. Develops from the axil of the mother plant

  3. Grows for some distance parallel to the surface

  4. Gets decayed once new plant is established

  5. Water lettuce shows vegetative propagation by offset


Correct Option: D
Explanation:

The runner gets decayed once the new plant is established. However, offset does not show any such feature.

Which of the following plants propagates vegetatively by leaves?

  1. Begonia

  2. Daffodil

  3. Colocasia

  4. Galdiolus

  5. Iris


Correct Option: A
Explanation:

Some plants such as Bryophyllum and Begonia produce adventitious buds on their leaves and propagate vegatitively.

The process in which stock and scion are obliquely cut and bound until the cambia are fused, is called ______________.

  1. whip grafting

  2. cleft grafting

  3. bud grafting

  4. leaf cutting

  5. stem cutting


Correct Option: A
Explanation:

The process in which stock and scion are obliquely cut and bound until the cambia are fused is called whip grafting.

Which of the following plants can be obtained by bud grafting?

  1. Mango

  2. Rubber

  3. Rose

  4. Citrus

  5. Apple


Correct Option: C
Explanation:

The whip and cleft grafting is common in mango, citrus and apple plants while bud grafting is done in rose plant.

Which of the following plants can be grown by root cutting method?

  1. Sugarcane

  2. Coleus

  3. Tamarind

  4. Begonia

  5. Rose


Correct Option: C
Explanation:

Many plants such as lemon, tamarind etc. are propagated from root cuttings.

Which of the following plants is propagated by the method of air layering?

  1. Jasmine

  2. Rhododendron

  3. Magnolia

  4. Rubber

  5. Begonia


Correct Option: D
Explanation:

Air layering is used in plants like rubber having thick branches that cannot be bent easily.

Which of the following statements is not true about vegetative propagation?

  1. Usually stock is a plant, which is efficient in absorbing water and minerals.

  2. The ends of the stock and the scion to be grafted are cut obliquely and placed face to face.

  3. Grafting has been used in raising superior quality of plants.

  4. In cleft grafting, stock and scion are obliquely cut and bound until the cambia are fused.

  5. The whip and cleft grafting are common in mango and apple plants.


Correct Option: D
Explanation:

In cleft grafting, a slit is made in the stock in which twigs of the scion are inserted and then bound until the cambia are fused.

Name the process in which branches of a plant are bent to the ground and covered with moist soil to propagate vegetatively.

  1. Stem cutting

  2. Whip grafting

  3. Mound layering

  4. Air layering

  5. Mericloning


Correct Option: C
Explanation:

Mericloning is the process in which branches of a plant are bent to the ground and covered with moist soil to propagate vegetatively.

What type of inflorescence is found in Jasmine flower?

  1. Monochasial chyme

  2. Polychasial chyme

  3. Dichasial chyme

  4. Simple chyme

  5. Unichasial chyme


Correct Option: C
Explanation:

Dichasial chyme is found in Jasmine plant.

Which of the following statements is not true?

  1. An unorganised, undifferentiated mass of tissues formed under aseptic conditions is called plantlet.

  2. Mericloning is used in the mass production of certain plants.

  3. Seedless fruits like seedless oranges and grapes can be obtained by vegetative propagation.

  4. The plants raised through vegetative propagation from a single plant constitute a genetically uniform population.

  5. Air layering is used in plants having thick branches that cannot be bent easily.


Correct Option: A
Explanation:

An unorganised, undifferentiated mass of tissues formed under aseptic conditions are called callus.

Match the following plants with their modes of vegetative propagation.

 
(I) Bryophyllum
(i) Onion
(II) Strawberry
(ii) Couch grass
(III) Bulb
(iii) Leaves
(IV) Rhizome
(iv) Runner
(V) Tuber
(v) Artichoke
  1. I - (i), II - (iii), III - (ii), IV - (iv), V - (iv)

  2. I - (ii), II - (v), III - (i), IV - (iii), V - (iv)

  3. I - (iii), II - (iv), III - (i), IV - (ii), V - (v)

  4. I - (iv), II - (iii), III - (v), IV - (ii), V - (i)

  5. I - (v), II - (iv), III - (iii), IV - (ii), V - (i)


Correct Option: C
Explanation:

Bryophyllum     - Leaves Strawberry - Runner Bulb - Onion Rhizome - Couch grass Tuber - Artichoke

Which of the following is not an advantage of vegetative propagation?

  1. To obtain seedless fruits

  2. To bring genetic variations

  3. A rapid method of propagation

  4. The desirable fruits can be obtained

  5. Used to propagate ornamental plants


Correct Option: B
Explanation:

Vegetative propagation does not bring favourable genetic variations in plants.

Which of the following plants develops as a bulb?

  1. Daffodils

  2. Iris

  3. Couch grass

  4. Artichoke

  5. Ginger


Correct Option: A
Explanation:

Bulb is a modified stem, which contains one or more axillary buds that form the shoot of the new plant.

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