Response of young olive trees Olea europaea L. Sourani variety to foliar application of amino acids , organic acids and boron

Abstract

Field experiment was conducted in silty clay loam soil during spring 2010 in general statement of horticultural and forestry research /Neaimiyia _Falluja ,to study the effect of foliar application with ( Selector –x ),Boron and interaction on some features of young olive trees – high oil Sourani variety .Selecter – x (amino acids 7 % , organic acid, vitamins and zinc 5 %) sprayed with 0 , 1 and 2ml/ L.Boron used in form of boric acid ( H3 BO3 ) 17% Boron sprayed with 0 , 200 , 400, 600 and 800 mg/ L . Factorial experiment in Randomized Complete Block Design RCBD with three replicates and the means tested in L.S.D.5% .The results indicated that : 1- vegetative growth features was increased significantly by foliar application with (Selector –x) . highest effect was observed with 2ml/ L concentration as average increase was 15.8% in branch length , 22.26 % in branches number , 10.4% in branches diameter ,24.05% in leaves number and 8.22% in leaf area. 2- Boron had asignificant effect on increasing vegetative growth features , highest effect was observed with 400 mg/ L concentration as average increase was 26.8%in branch length , 38.8% in branches number , 15.67% in branch diameter , 53.29% in leaves number and,14.08%in leaf area. while 600 and 800 mg / L concentration had no significant effect on the mentioned features . 3 – Selector – x and boron foliar application caused significant increase in percentage of P and K in leaves and their content of boron(ppm), while the dry matter and N did not affected . 4- The interaction between Selector – x and Boron resulted in asignificant effect on all studied features except dry matter , N and P.