- A) Ethylene
- B) IAA
- C) GA3
- D) ABA
Explanation: Avena curvature test is used for bioassay of auxins. Etiolated oats coleoptiles are used for this purpose. IAA or indole acetic acid is a natural auxin.
- Plant Hormones
- Cell Differentiation
- How Is Auxin Used in Agriculture?
- What Does Gibberellic Acid Enable Plants to Do?
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