The term auxin is applied to the indole-3-acetic acid (IAA) and to other natural and synthetic compounds having certain growth regulating properties. NAA (Naphthalene Acetic Acid) and 2,4-D (2,4- dichlorophenoxy acetic acid) are synthetic auxins. IAA and IBA (Indole Butyric Acid) have been isolated from plants. All these auxins have been used extensively in agricultural and horticultural practices.
One of the synthetic auxin is
NEET UG 2009 — Botany Plant - Growth and Development
2009mcqmedium
One of the synthetic auxin is
Official previous-year question
Held on 30 Apr 2009 · Verified 9 Jul 2026.
Options
- A
NAA
- B
IAA
- C
GA
- D
IBA
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