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

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

  1. Many plants can be grown from just one parent plant by artificial propagation.

  2. The new plants produced by this method will be exactly like the parent plants.

  3. The fruit trees grown by this method start to bear fruits only after a few growing seasons.

  4. The plants grown by vegetative propagation usually need less attention in their early years than the plants grown from seeds.

  5. The plants are less prone to diseases in artificial vegetative propagation method.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option.

Multiple choice

The quickest method of plant breeding is

  1. introduction

  2. selection

  3. hybridisation

  4. mutation breeding
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Introduction is the process of introducing a new plant variety to a new area, which is the fastest method to establish a crop in a new region compared to breeding programs like selection or hybridization.

Multiple choice

The oldest method of plant breeding is

  1. introduction

  2. selection

  3. hybridisation

  4. mutation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Selection is the oldest method of plant breeding, where farmers choose the best plants with desirable traits to save seeds for the next season. Hybridization and mutation are more modern scientific techniques.

Multiple choice

Hydroponics are cultures of plant in

  1. soil

  2. soil - less condition

  3. light

  4. nutrients
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in an aqueous solvent.

Multiple choice

Phytotron is a device by which

  1. electrons are bombarded

  2. protons are liberated

  3. plants are grown in controlled environment

  4. mutations are produced in plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A phytotron is a specialized laboratory or facility where plants are grown under strictly controlled environmental conditions, such as light, temperature, and humidity.

Multiple choice

The term hydroponics is used to refer to

  1. sound propagation underwater

  2. cultivation of plants in water

  3. a water-borne disease

  4. underwater electronic devices
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in an aqueous solvent. It allows for controlled environment agriculture.

Multiple choice

The aim of plant breeding is

  1. production of early ripening varieties

  2. production of higher yielding varieties

  3. production of resistant varieties

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The aim of plant breeding is to produce disease free, high yielding and early maturing varieties.

Multiple choice

Hybrid vigour of a plant can be maintained for long periods by

  1. selfing

  2. cross-pollination

  3. mutation

  4. clonal selection
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Clonal selection or vegetative propagation allows for the maintenance of hybrid vigour (heterosis) because it produces genetically identical offspring, preventing the segregation of traits that occurs in sexual reproduction.

Multiple choice

Aims of plant breeding include the production of

  1. disease free varieties

  2. high yielding varieties

  3. early maturing varieties

  4. all the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant breeding aims to improve crop performance by selecting or creating varieties that are disease resistant, high-yielding, and have desirable agronomic traits like early maturity.