Plant responses to the environment

Plant responses to the environment

• 1.
  Plant responses tothe environment
• 2.
  Tropisms Tropisms - abiological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. The word tropism comes from the Greek trope ("to turn" or "to change"). Tropisms are usually named for the stimulus involved and may be either positive (towards the stimulus) or negative (away from the stimulus).
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  1. Phototropism isthe growth response of a plant in response to light direction.
• 4.
  2. Geotropism isthe growth response of a plant in response to gravity.
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  3. Thigmotropism isthe growth response of a plant to physical contact (touch).
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  4. Hydrotropism isthe growth response of a plant to water.