Impact of some micronutrients on improving salt tolerance of wheat plant

Abstract

Two pot experiments were conducted during 2009/2010 and 2010/2011 Winter seasons, to study the effect of foliar spray of some micronutrients (B and Mn at 0, 5, 50 ppm as H3BO3 and MnSO4.4H2O and Zn at 0, 0.5, 5 ppm as ZnSO4. 7H2O) and their combinations periodically each two weeks on growth, yield and chemical constituents of wheat plant under salt stress condition. two samples were taken after 80 and 150 days from sowing. manganese an boron and combined treatment (B, Mn and Zn) at the highest level have strongly stimulating effect on most growth parameters, yield components, mineral nutrients and biochemical changes. These treatments mitigated the adverse effect of salinity. In general, a significant increase biochemical components (total phenols, proline and total proteins) in addition to N, P, K and ratio of K/Na could be considered as good parameters for salt tolerance plant