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 natural vegetative propagation reproduction in plants biology

Which of the following plants does not help in vegetative propagation by leaves

  1. Begonia

  2. Kalanchoe

  3. Bryophyllum

  4. Oxalis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Oxalis propagates through runner and bulbils. Bulbils are a small bulb-like structure which is mainly present in the axil of leaf and stem. The bulbil falls on the ground and form a new plant. In oxalis, the bulbils occur above the base of the fleshy root. Bulbils are considered as modified vegetative and floral buds which stores food and also helps in vegetative propagation of the plants.
Oxalis also propagates by runners where the stem spreads on the ground and develop the root on lower side and leaf on the upper side at the point on the stem and develop into a new plant.
So, the correct answer is option D.
Multiple choice natural vegetative propagation reproduction in plants biology

Leaf cuttings are used for quick vegetative propagation of

  1. Sansevieria

  2. Jasminum

  3. Tea

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

Vegetative propagation is the growth and development of the plant by asexual means. It occurs from specialized vegetative plant parts. It is made possible by meristem tissue that is commonly found within stems and leaves, as well as at the tips of roots and stems. Meristem tissue contains undifferentiated cells that actively divide by mitosis allowing plant growth.

Sansevieria plant has long leaves with meristem tissue at the tip as well as at margins. Cutting of leaf can give rise to adventitious roots for plant growth.
Jasmine, blackberry and Tea are propagated by layering and stem cuttings. Thus, the correct answer is option A.

Multiple choice natural vegetative propagation reproduction in plants biology

Statement $1$ : Many plants are propagated vegetatively even though they bear seeds.
Statement $2$: Sweet potatoes multiply vegetatively by root tubers.

  1. Both statements $1$ and $2$ are correct
  2. Statement $1$ is correct but statement $2$ is incorrect
  3. Statement $1$ is incorrect but statement $2$ is correct
  4. Both statements $1$ and $2$ are incorrect
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vegetative propagation is the formation of new plants from vegetative units such as buds, tubers, rhizomes, etc. This method produces a large number of population of clones in a short time. It preserves purity, resistance and food qualities of race/variety indefinitely. Fleshy roots (root tubers) which develop adventitious buds also take part in vegetative propagation, e.g., sweet potato.

So, the correct answer is 'Both statements 1 and 2 are correct'.

Multiple choice natural vegetative propagation reproduction in plants biology

Read the following statements and select the correct ones.


(i) Conidia are the asexual propagules restricted to Kingdom Fungi.
(ii) A piece of potato tuber having at least one eye (or node) is capable of giving rise to a new plants.
(iii) Ginger propagates vegetatively with the help of its underground roots.
(iv) Fleshy buds which take part in vegetative propagation are called bulbils, present in Dioscorea, Agave, etc.

  1. (ii) and (iii)

  2. (i) and (iv)

  3. (i), (ii), and (iv)

  4. (i), (ii), and (iii)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ginger propagates vegetatively with the help of rhizome. Rhizomes are main underground stems which store food for perennation during unfavourable conditions. These have buds for formation of new aerial during favourable conditions.

So, the correct answer is '(i), (ii) and (iv)'.

Multiple choice natural vegetative propagation reproduction in plants biology

Bryophyllum propagates through spore formation.

  1. False

  2. True

  3. Ambiguous

  4. Data insufficient
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bryophyllum produces plantlets along the margins of its leaves. When they mature, they drop off and root in any suitable soil beneath thereby performing the function of vegetative propagation.
Thus, the correct answer is option (A), 'False'.

Multiple choice natural vegetative propagation reproduction in plants biology

Vegetative propagation refers to formation of new plants from

  1. Stem, roots and flowers

  2. Stem, roots and leaves

  3. Stem, flowers and fruits

  4. Stem, leaves and flowers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vegetative propagation is type of asexual reproduction in which new plant is produced from root, stem, leaves and bud. New plant is produced from vegetative part so it is called as vegetative propagation.

Multiple choice natural vegetative propagation reproduction in plants biology

The vegetative reproduction in sweet potato is done by

  1. Stem

  2. Leaf

  3. Root

  4. Flower
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The vegetative propagation of sweet potato can be done by roots. Sweet potato is a modification of adventitious roots, which grow from the nodes of a running stem and they are irregularly swollen due to storage of food. They can give rise to adventitious buds, which when detached can give rise to new plants thus performing the function of vegetative propagation.
Thus, the correct answer is option (C), 'Roots'.

Multiple choice natural vegetative propagation reproduction in plants biology

The common mode of vegetative reproduction in ginger is through

  1. Corm

  2. Rhizome

  3. Bulb

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

The plant species exhibiting vegetative reproduction by following structures are:

-Corm: Alocasia and Colocasia
-Rhizome: Banana, Ginger and Turmeric
-Bulb: Onion and Garlic
-Stem cuttings: China rose, Croton, Rose, Citrus, Bougainvillea, etc.
So, the correct answer is 'Option B- Rhizome'.

Multiple choice natural vegetative propagation reproduction in plants biology

Vegetative propagation in Pistia occurs by

  1. stolon

  2. offset

  3. runner

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

Pistia reproduces primarily vegetatively by means of daughter plants attached to stolons. The daughter plants have the potential to break off from the parent plant and be moved via water currents or boats to start new populations. It can also reproduce sexually via seeds.

So, the correct option is 'Option B'.

Multiple choice geography agriculture in india - ii : food crops pulses cultivation in india production of agricultural crops food crops in india

In which method the seeds are dropped at regular intervals in furrows?

  1. Transplantation

  2. Planting

  3. Broad casting

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

is the process of placing the seeds in holes at definite depth made in seed bed and covering them.
The and tool used is called dibbler which has many conical projections made in a frame.
This is adopted for small plots and is generally used for vegetable crops.
Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants hydroponics hydroculture

Select the correct statement(s) regarding the solution culture techniques.

  1. Successful hydroponic culture requires a large volume of nutrient solution or frequent adjustment of the nutrient solution to prevent roots from producing radical changes in nutrient concentrations and pH of the medium.

  2. In nutrient film growth system, plant roots lie on the surface of a trough, and nutrient solutions flow in a thin layer along the trough over the roots.

  3. In aeroponics technique, plants are grown with their roots suspended in air while being sprayed continuously with a nutrient solution.

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hydroponic systems include various methods like nutrient film technique (NFT) and aeroponics. All the statements provided accurately describe the principles of these specific soilless culture techniques.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

The Hydroponics is most closely related to which among the following?

  1. Grafting of Plants

  2. Water conservation

  3. Study of Vegetable

  4. Soilless culture of Plants
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in a water solvent. It is the definition of soilless culture.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

Which one of the following statements correctly fines the term hydroponics?

  1. Growing plants in soil less culture

  2. Culture of fishes by varying the water supply

  3. Growing planktons on the surface of water

  4. Growing plants in sterilized soil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydroponics is defined as the technique of growing plants in nutrient-rich water solutions without the use of soil as a growth medium.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

The technique of growing plants in a nutrient solution, in complete absence of soil is called as ___________.

  1. Aeroponics

  2. Water culture

  3. Hydroponics

  4. Soil culture
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cultivation of plants by placing the roots in the nutrient solution (in complete absence of soil) is called hydroponics. It is necessary to aerate the solution to provide roots with adequate oxygen supply. The result obtained from soil-less culture may then be used to determine deficiencies under field conditions.

Multiple choice biology mineral nutrition in plants hydroponics nutrients and nutrition hydroculture

Choose the correct answer from the alternatives given.
Hydroponics is a technique of growing:

  1. submerged Plants

  2. free-floating aquatic plants

  3. terrestrial plants in sand

  4. plants in aqueous balanced nutrient medium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hydroponics is a subset of hydroculture, which is a method of growing plants without soil by using mineral nutrient solutions in a water solvent. Terrestrial plants may be grown with only their roots exposed to the mineral solution, or the roots may be supported by an inert medium, such as perlite or gravel. So, the correct answer is "plants in the aqueous balanced nutrient medium".