UPSC Prelims 2009·GS1·science-and-technology·science and technology

Consider the following statements: 1. Sweet orange plant is propagated by grafting technique. 2. Jasmine plant is propagated by layering technique. Which of the statements given above is/are correct?

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  1. A1 only
  2. B2 only
  3. CBoth 1 and 2Correct
  4. DNeither 1 nor 2

Explanation

The correct answer is C because both statements are scientifically accurate regarding vegetative propagation methods. Statement 1 is correct. Sweet orange and most other citrus fruits are commercially propagated using grafting. This involves joining a shoot from a desired sweet orange variety onto a hardy rootstock to ensure disease resistance and consistent fruit quality. Statement 2 is correct. Jasmine is commonly propagated through layering, specifically simple or air layering. This process involves bending a branch to the ground and covering it with soil while it is still attached to the parent plant until it develops its own roots. Since both methods are standard horticultural practices for these specific plants, both statements 1 and 2 are correct.
science-and-technology: Consider the following statements: 1. Sweet orange plant is propagated by grafting technique. 2. Jasmine plant is propag

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