Some physiological and cytological studies on the effect of ions of some heavy metals on Pisum sativum plant. II. Comparative evaluation of the effects of Ni, Cr and Pb ions on carbohydrates, nitrogen metabolism and activities of certain hydrolytic enzymes in cotyledons and embryonal axes of two cultivars of Pisum sativum seedlings

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