What role do plant growth regulators play in Plant Growth and Development?

What role do plant growth regulators play in Plant Growth and Development?
  1. The only role in Plant Growth and Development
  2. One of the intrinsic controls in Plant Growth and Development
  3. The extrinsic controls in Plant Growth and Development
  4. No role in Plant Growth and Development

Solution

The role of PGR is of only one kind of intrinsic control. Along with genomic control and extrinsic factors, they play an important role in Plant Growth and Development.

Asked in: NCERT

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