A) NAA
B) IAA
C) GA
D) IBA
Correct Answer: B
Solution :
| [B] 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. |
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