Is Abscission Abscisic Acid?

Abscisic acid (ABA) levels increased significantly prior to abscission. ... Aminoethoxyvinylglycine (AVG) delayed but did not prevent abscission. In cocoa flowers, ABA is the primary regulator of abscission; ethylene accelerates abscission but only in the presence of ABA.

Is abscisic acid involved in abscission?

Abscisic acid (ABA) is a plant hormone that has multiple roles in plant growth and development. Although the name implies involvement in abscission, the role of ABA in this process is still not well established.

What is the role of abscisic acid in abscission?

It increased ethylene production from the explants, which was found to account for some of its ability to accelerate abscission. ... Increased synthesis of cellulase was not du to an increase in aging of the explants but rather was an effect of abscisic acid on the processes that lead to cellulase synthesis or activity.