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Q.
Synthetic auxins are used for
Plant Growth and Development
Solution:
The synthetic auxins are not treated as phytohormones, but they are considered 'plant growth regulators. Many synthetic auxins, such as $2,4- D (2,4-$ dichlorophenoxy acetic acid), $2,4,5- T (2,4,5$ -trichlorophenoxyacetic acid), MCPA (2-methyl-4-chlorophenoxyacetic acid), etc. are used as selective herbicides (i.e. eradicants of weeds). They are widely used as potent defoliants due to their destructive properties.