Plant Growth Regulators · NCERT Biology

Which specific combination of hormones is often used in tissue culture to induce shoot and root differentiation?

  1. Maize (Zea mays)
  2. Oat (Avena sativa)
  3. Tobacco (Nicotiana tabacum)
  4. Rice (Oryza sativa)
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Correct answer: Oat (Avena sativa)

F.W. Went isolated auxin from the coleoptile tips of oat (Avena sativa) seedlings. He showed that the growth-promoting substance could diffuse into agar blocks and still induce curvature in decapitated coleoptiles.

Difficulty: Medium Question 4 of 20

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