Complimentary effect of zinc application on iron content in sorghum genotypes

A field experiment was conducted during rabi 2006–07 to study the effect of zinc application on iron content and its translocation in low and high seed zinc type sorghum genotypes raised in calcareous soil. Zinc application @ 10 kg ha⁻¹ significantly enhanced the iron content in root, leaf, inflorescence and seeds of high and low seed zinc type sorghum genotypes. Application of zinc to the calcareous soil was complimentary to sorghum plant iron content. Low seed zinc types accumulated more iron in root than in leaf and inflorescence,whereas high seed zinc types accumulated less iron in roots than in leaf and inflorescence which led to higher accumulation of iron in the seeds of high zinc types and were efficient in zinc utilization during growth and iron uptake and translocation than low types.