highly significantp <0.01
(2016) employed X-ray fluorescence spectrometry (XRF) and ICP-OES methods for estimating Fe and Zn densities in diverse pearl millet genotypes and identified highly significant and positive correlations between these two advanced techniques for Fe (r = up to 0.97, p <0.01) and Zn (r = up to 0.98, p <0.01) contents.