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Plant Growth and Mineral Nutrition — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPlant Growth and Mineral Nutrition5 Marks
Question
Phytohormones/Plant Growth Regulators
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Answer

  1. Phytohormones or plant growth regulators are internal factor that influence growth.
  2. They inhibit, promote or modify the plant growth.
  3. Plant hormones are organic substances produced naturally in plants and required in small amount.
  4. Their place of production and site of the activity are different.
  5. Auxins, gibberellins, cytokinins are growth promoters and ethylene, abscissic acid are growth inhibitors.

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