Plant Growth and Development Question 28
28. One of the synthetic auxin is:
[2009]
(a) IAA
(b) GA
(c) IBA
(d) NAA
Show Answer
Answer : d
Hints & Solutions
(d) NAA is a synthetic auxin. Some of the most widely used weed killers are synthetic auxins. Synthetic auxin analogs include 1-naphthaleneacetic acid (NAA), 2, 4-dichlorophenoxy acetic acid (2, 4-D) and 2,4,5-trichlorophenoxy acetic acid (2,4,5- T).
