Some physiological and cytological studies on the effect of ions of some heavy metals on Pisum sativum plant. III. Changes in endogenous phytohormones and activities of certain oxidative enzymes of cv. B-master and cv. Sugary seedlings as influenced by pre-emergence treatment of the seeds with Ni, Cr and Pb ions

Amal M. E. Abdel-Hamid; El-Nahas, A. I;