《Table 5 Pearson correlation coefficients between Fe concentration in different organs and other ind

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《三种苹果砧木在水培条件下对缺铁胁迫的耐受性（英文）》

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A=Fe concentration in roots，B=Fe concentration in stems，C=Fe concentration in leaves，D=Shoot fresh weight，E=The chlorophyll content，F=Root activity，G=Total root length，H=Lateral root number，I=Plant height，J=Stem diameter，K=SOD in leaves，L=SOD in

It is important to evaluate the correlation between Fe concentration in different organs and other indices in order to identify corresponding indices for improving the absorption of Fe.As shown in Table5，the correlation analysis showed that there was a significant correlation between Fe concentration in the roots and shoot fresh weight（0.998）or total root length（0.994），and a negative correlation between Fe concentration in the roots and that in the leaves（-0.297）.The Fe concentration in the roots also had a significant correlation with the plant height（1.000）.Moreover，there was a negative correlation betweenFe concentration in the stems and Fe concentration in the roots（-0.997）or plant height（-0.997），and a positive correlation between Fe concentration in the stems and SOD in the root.The Fe concentration in the leaves and POD in the leaves had a negative correlation（-0.993），and there was a significant correlation between Fe concentration in the leaves and root activity（0.999）or POD in the roots（1.000）.