INFLUENCE OF THE TRIAZOLE GROWTH RETARDANT UNICONAZOLE ON PHYTOHORMONE LEVELS IN WHEAT PLANTS.

Document Type : Original Article

Authors

1 Botany Department, National Research Centre, Dokki, Cairo, Egypt

2 Botany Department, Girls College of Science, Dammam, Saudi Arabia

Abstract

The effect of soaking wheat grains in uniconazole, a triazole type growth retardant, was studied on the endogenous levels of IAA, ABA, cytokinins and IAA-oxidase activity. Uniconazole treated plants had lower IAA and higher ABA and cytokinins (Z, ZR, ZG) contents. IAA-oxidase activity was also increased.
Abbreviations : ABA = Abscisic Acid; IAA, IndoleAcetic Acid;   Z = Zeatin, ZR = Zeatin Riboside; ZG = Zeatin Glucoside.

Keywords