Biology

Plant Propagation Techniques

591 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

Multiple choice

What is the cultivation medium required for tissue culture called?

  1. Nutrient Broth

  2. Basal medium

  3. Potato dextrose broth (PDB)

  4. Sabrauds agar
Reveal answer Fill a bubble to check yourself
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.

Multiple choice

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

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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

Multiple choice

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.
Reveal answer Fill a bubble to check yourself
D Correct answer
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.