The experiment was conducted during the two seasons (2015 , 2016 ) on the Lemon trees
cv (Meyer ) aiming at studying the effect of the foliar spraying with the nutrients ( boron ,
zinc and iron ) on physical and chemical properties of the fruits Th
ese nutrients were
sprayed separately or as a mixture .
The average of each of the physical properties of the fruit (length , width , firmness,
volume and weight of the fruit ) , in addition to rind thickness and the fruits ` juice volume,
,the chemical properties of the fruit juice (total soluble solids, total sugars, total acidity,
vitamin C) were studied. An increase was observed in all the studied parameters in the
sprayed treatments compared to the control from( 6.37%- 3.33% -0.37% -
34.57mg%)to(9.33% -4.88% -1.89% -43.5%) in the first season and( 9.75% 5.87- 3.32% -
45%) in the second season, respectively. As a result of the statistical analysis, there were
significant differences between all the studied treatments and the control with overpass of
the treatment of the three elements (iron chelate + boron oxide + zinc chelate ) of all
treatments in the most of the studied figures in both seasons. Statistical analysis of the fruit
rind thickness showed the absence of the significant differences among the studied
treatments.
