الفهرس 
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Abstract
Pot experiments were conducted during 2009/2010 and 2010/2011
winter seasons under different salinity levels (0, 2000 and 4000 ppm
NaCl), to study the effect of foliar application of some micronutrients (B
and Mn at 0, 5, 50 ppm as H
3
BO
3
and MnSO
4
.4H
O and Zn at 0, 0.5, 5
ppm as ZnSO
4
.7H
2
2
O)and the combinations of low and high
concentrations periodically each two weeks on wheat plant growth, yield
and chemical constituents under salt stress condition. Three samples were
taken after 45, 80 and 150 days after sowing. The highest level of salinity
recorded significant decrease in all growth parameters and yield
comparing with fresh water and the lowest level of salinity. Manganese at
50 ppm led to the highest values in salt tolerance index (STI) at 45 and 80
days after sowing in the first season. Boron and manganese at 50 ppm and
the combination of B, Mn and Zn at the higher level had strongly
stimulating effect on growth, yield and biochemical changes. These
treatments mitigated the adverse effect of salinity as indicated by
biochemical component, (Total phenols, proline, total sugars, total soluble
carbohydrates and total proteins) in addition to N, P, K, Ca, Na and ratios
of K/Na and Ca/Na.