IAA ( Indole acetic acid )
Description
: IAA is one of the primary auxins found in plants and is synthesized in various plant tissues, including apical meristems, young leaves, stems, and developing seeds. It regulates numerous aspects of plant growth and development, including cell elongation, tissue differentiation, root initiation, and tropic responses.
Mode of Action
Indole-3-acetic acid (IAA) is a naturally occurring auxin, a class of plant hormones that play fundamental roles in regulating various aspects of plant growth and development IAA promotes root initiation, elongation, and branching. It helps plants establish a strong root system, which is essential for nutrient uptake, water absorption, and anchorage. Application of IAA can stimulate root growth in young seedlings, transplants, or cuttings, promoting vigorous root development and enhancing plant establishment.
Applications
IAA plays a role in the initiation and development of flowers. In some crops, such as pineapple and mango, exogenous application of IAA can induce flowering, which is crucial for fruit production. This application is particularly important in perennial crops where flowering needs to be synchronized for commercial production.
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