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Question

What are the five main plant hormones?


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Solution

Main plant hormones:

  1. Plant hormones are modest amounts of chemicals found in plants.
  2. Five main plant hormones are- auxins, cytokinin, gibberellins, abscisic acid, ethylene.
  3. Auxins (indole) - stimulates cell growth and differentiation, particularly at plant tips.
  4. Cytokinin (adenine) is a plant hormone that promotes cell division and lateral development.
  5. Gibberellins (terpenes) - aids in the emergence of seeds and buds from dormancy.
  6. Abscisic acid (carotenoids) - encourages seed and bud dormancy.
  7. Fruit ripening is aided by ethylene (gas).

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