Growth and Development of Horticultural Crops (1+1)

Distribution of auxin (IAA) in plant

• Auxin (IAA) is widely distributed in plant but relative concentrations differ in different parts of the plant.
  
• Since auxin is synthesized in growing tips or meristematic regions of the plant from where it is transported to other plant parts, the highest concentrations of the auxin are found in these parts such as growing shoot and root tips, young leaves and developing axillary shoots.