Chapter 17: MOA Part 3: Growth Regulators (Auxinic Herbicides)

17.2 Importance of Auxin

The term “auxin” is from the Greek word, auxein, meaning ’to increase’ and was first used by Frits Went in 1926 to describe the natural plant hormone, indole-3-acetic acid (IAA), which is the compound that caused curvature of oat coleoptiles.

The following YouTube video describes IAA’s important role in plant growth, including how it causes plants to grow towards the sun and its effects on root growth.

 

License

Principles of Weed Control Copyright © by Deana Namuth-Covert and Amy Kohmetscher. All Rights Reserved.