Mepiquat chloride is a plant growth regulator widely used in cotton (Gossypium hirsutum L.) production to suppress excessive vegetative growth, increase root growth and avoid yield losses.
To increase root growth, cotton seeds were treated with Mepiquat chloride to increase the number of lateral root (LRs) and improve drought resistance.
An increased indole-3-acetic acid (IAA) pool appeared to correlate with LR growth, and the principal source of IAA in germinating seeds is IAA conjugates.
