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Q107 (IAS/1999) Science & Technology › Biotechnology & Health › Industrial and environmental biotechnology Answer Verified

Neem tree has acquired industrial importance as a source of

Result
Your answer: —  Â·  Correct: A
Explanation

The Neem tree (Azadirachta indica) is industrially valued primarily for its biopesticidal and anti-fertility properties:

  • Biopesticide: The chemical Azadirachtin found in neem disrupts the life cycle of pests, making it a leading botanical pesticide.
  • Anti-fertility compound: Neem oil possesses spermicidal properties and has been researched and utilized industrially for natural contraceptive preparations.

It is important to distinguish between "biofertilizers" and "organic manures." Biofertilizers consist of living microbes (like bacteria or algae) that fix nitrogen or solubilize phosphorus. Although neem cake is a nutrient-rich organic amendment and neem-coated urea prevents nitrogen leaching, neem is a botanical source, not a microbial one, so it is not classified as a biofertilizer in this context. Therefore, options containing 'biofertilizer' are incorrect.

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