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INFLUENCE OF SILVER NITRATE AND GIBBERELLIC ACID ON THE TRANSPORT OF ¹⁴C-INDOLEACETIC ACID IN ZEA MAYS L.

S.S.M. NAQVI, SABA MUMTAZ, AISHA SHEREEN AND M.A. KHAN

Abstract: The effect of silver nitrate and gibberellic acid on ¹⁴C-IAA transport parameters was investigated in coleoptile segments of Zea mays L. Silver nitrate and GA₃ enhanced the transport intensity and density without affecting absorption and the velocity. The data has been interpreted to show that these chemicals may influence abscission by increasing the relative hormone concentration at the abscission zone.

Plant Physiology Division, Atomic Energy Agricultural Research Centre, Tando Jam-70060, Pakistan.