THE EFFECT OF ABSCISIC ACID ON EARLY STAGES OF THE MAIZE SEEDLINGS ROOTAGE FORMATION
The influence of abscisic acid (ABA) on the formation of lateral roots of maize seedlings is studied. It is shown, that all maize primordia develop in to lateral roots without a dormant period. Abscisic acid inhibits growth of the main root in all the tested concentration significantly and does not affect the development time of the lateral root primordium with in the parent one. Also, it does not initiate new primordia. Probably, the development of primordium into a lateral root takes two stages, and different stages have different regulation.