auxins

• How do plant tropisms increase the chance of survival?


  • Enable plants to respond to their environment
  • Shoot growth towards light maximizes light absorption
  • Root growth downwards increases water and mineral uptake
  • Anchors the plant body to the ground
• Describe the role of gibberellins in commercial plant cultivation.

  • Initiate germination in seeds at non-natural times
  • Trigger flowering under irregular conditions
  • Increase fruit size by reducing flower numbers
  • Produce seedless fruits from unpollinated flowers