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Table 2 Coefficients of correlation (r) between concentrations of grain protein (GPC) and mineral nutrients in a collection of 150 bread wheat genotypes from India and Turkey

From: Assessment of genetic variability for grain nutrients from diverse regions: potential for wheat improvement

 

Macro-elements

Micro-elements

Ca

K

Mg

Na

P

S

Zn

Cu

Fe

Mn

Macro-elements

K

0.030

         

p value

0.717

         

Mg

0.615**

0.318**

        

p value

0.000

0.000

        

Na

0.224*

0.201*

0.293**

       

p value

0.006

0.014

0.000

       

P

0.324**

0.622**

0.738**

0.290**

      

p value

0.000

0.000

0.000

0.000

      

S

0.312**

0.056

0.387**

0.033

0.044

     

p value

0.000

0.496

0.000

0.686

0.589

     

Micro-elements

Zn

0.492**

0.341**

0.544**

0.164*

0.538**

0.319**

    

p value

0.000

0.000

0.000

0.045

0.000

0.000

    

Cu

0.025

0.039

0.118

0.018

−0.059

0.433**

0.255*

   

p value

0.763

0.632

0.151

0.824

0.472

0.000

0.002

   

Fe

0.158

−0.084

0.202*

0.048

0.011

0.300**

0.172*

0.348**

  

p value

0.053

0.309

0.013

0.560

0.891

0.000

0.036

0.000

  

Mn

0.228*

−0.032

0.151

−0.061

0.263*

0.051

0.373**

0.147

0.049

 

p value

0.005

0.694

0.065

0.461

0.001

0.536

0.000

0.073

0.551

 

GPC

0.072

−0.076

0.101

0.043

−0.151

0.633**

0.099

0.270*

0.231*

−0.144

p value

0.381

0.357

0.220

0.603

0.065

0.000

0.227

0.001

0.004

0.079

  1. Asterisks indicate significance at *p < 0.05 and at **p < 0.001)