الفهرس 
Growth charactersOnly 14 pages are availabe for public view
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Abstract
The present study was carried out during two successive seasons of 2008 and 2009 to study the effect of Ca (175 ppm), potassium nitrate (1320 ppm K), Mg (137.5 ppm), Cu (97 ppm) and growth regulators ( 20 ppm 2,4-D, 30 ppm GA3, 10 ppm BA) foliar application on growth, fruit yield and fruit quality of “Washington” navel orange trees. Generally, the results reveal that all treatments improved most of the studied growth characters, yield and fruit quality through their favourable effects on leaves chemical composition; plant pigments, total sugars, pectin substances and endogenous plant hormones balance of leaves as well as nutritional status (N, P, K, Ca, Mg, and Cu concentrations) of leaves and fruit peels). Moreover, the results indicate that, most of all treatments reduced peel fruit dis-#111;-#114;-#100;-#101;-#114; cracking