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

Multiple choice
  1. cultivation of plants without the use of soil

  2. detection of sound in water

  3. animals living in water

  4. the Japanese art of flower arrangement

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

Hydroponics is the cultivation of plants without soil, using nutrient-rich water solutions instead. Plant roots grow directly in water or inert media. It allows year-round cultivation and higher yields. It has nothing to do with sound detection, aquatic animals, or Japanese flower arrangement.

Multiple choice
  1. tissue culture

  2. autopsy

  3. foundries

  4. musical instruments

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

Agar-agar is a gelatinous substance derived from red algae, used as a solidifying agent in tissue culture media. It provides a semi-solid surface for plant tissue growth and nutrient absorption. It's not used in autopsy, foundries, or musical instruments. Its gelling properties make it ideal for laboratory cultivation.

Multiple choice

Where was the hemp plant discovered?

Directions: Read the passage and answer the question that follows.

Hemp is a strong, cane–like plant known throughout the world for its durability and versatility. In the US, however, the hemp industry and supporters struggle. The US government worries that citizens might figure out a way to turn durable hemp into illegal marijuana.
As a result the US government discourages the production and use of hemp and its products in America. Instead, it approves the destruction of million of tress annually to produce newspapers and hundreds of other paper products which get thrown away every day. All those paper products can be made from hemp.
Hemp was discovered in Asia thousands of years ago. It is cultivated worldwide. Hemp can grow quickly to heights of 15 feet or more in many different climates and soils. It needs little care or protection to achieve its full growth.
Hemp matures in one growing season. It’s used in many products, from paper to beauty products to clothing. Like bamboo, it is used in the construction industry. Hemp is even good for you. Its seeds produce a nutritious flour or oil.
Supporters of hemp production and products struggle to overcome the US government belief that the use of hemp might lead to the use of marijuana. Marijuana, says the US government, is the gateway drug to more dangerous drugs like cocaine.
Meanwhile, the US government does little to prevent the thousands of deaths, injuries and illnesses caused annually by tobacco and alcohol – two of the most addictive, dangerous, popular (and profitable) – drugs in the world.

  1. India

  2. Russia

  3. Asia

  4. None of these

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

'It was discovered in Asia thousands of years ago'.

Multiple choice
  1. layering

  2. cutting

  3. grafting

  4. All of the above

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

Different species of rose plants are propagated by different methods. They may be propagated by either cutting, layering or grafting.

Multiple choice
  1. asexual reproduction in plants

  2. micropropagation

  3. sexual reproduction in plants

  4. budding

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

Callus formation takes place in micropropagation technique.