Influence of Spraying Kalmata and Picual Olive Trees with GA3 and ZnSO4 on Leaf Nutrient Status and Chlorophyll Content

摘要

ABSTRACT This work was performed to study the effect of spraying Kalamata &Picual olive trees with Zn sulfate (0.0, 0.5 and 1.0 %) and GA3 at (0, 20 and 40 ppm) on some leaf nutrient and chlorophyll content. Data reveal that applying zinc sulfate at the two tested concentration 0.5 &1.0 % enhanced the leaf N, K, Mg, Fe Zn and Mn content of the two olives, cultivars while the leaf P content was not affected. Moreover, the GA3 at 20 and 40 ppm sprays tended to increase the leaf N, K, Zn content o.