List any four reasons for vegetative propagation being practised in the growth of some type of plants.
List any four reasons for vegetative propagation being practised in the growth of some type of plants.
Vegetative propagation is practiced for growing certain types of plants for the following reasons:
- Early Maturity: Plants raised by vegetative propagation can bear flowers and fruits much earlier than those produced from seeds.
- Propagation of Seedless Plants: It makes possible the propagation of plants such as banana, orange, rose, and jasmine that have lost the capacity to produce seeds.
- Genetic Uniformity: All plants produced are genetically similar enough to the parent plant to have all its characteristics.
- Cost-Effectiveness: It is often a cheaper, quicker, and more certain method of plant growth compared to germination from seeds.
Marking Scheme
- 1Mentioning earlier flowering and fruiting. (0.5 marks)
- 2Mentioning propagation of seedless varieties (e.g., banana, jasmine). (0.5 marks)
- 3Mentioning genetic similarity/uniformity to the parent plant. (0.5 marks)
- 4Mentioning that it is a faster or more economical method. (0.5 marks)
Hint
Think about plants like bananas that don't have seeds and how we ensure the next generation looks exactly like the parent.
Quick Oral Answer
Vegetative propagation is used because it allows us to grow plants that don't produce seeds, ensures the offspring are identical to the parent, and allows the plants to grow and fruit much faster than seeds.
Analysis & Explanation
Vegetative propagation is an asexual method of reproduction where new plants are produced from vegetative parts like roots, stems, and leaves. This method is highly beneficial in agriculture and horticulture because it ensures that desirable traits of a parent plant are preserved exactly in the offspring (clones). It also bypasses the long juvenile phase of seed-grown plants, allowing for faster commercial production.
Common Mistakes
- 1Confusing vegetative propagation with sexual reproduction.
- 2Forgetting to mention that offspring are genetically identical to the parent.
Interesting Facts
Many commercial fruits like Navel oranges and Cavendish bananas are produced entirely through vegetative propagation because they are sterile and cannot produce seeds.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2011?
This question carries 2 marks in the CBSE Class 10 Science 2011 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Chemical Reactions and Equations" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Vegetative Propagation" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2011 paper?
This is a Short Answer question from Section A in the CBSE Class 10 Science 2011 paper.