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Table 5 Pearson’s correlation between harvest time, environmental conditions and selected quality features in sweetpotato genotypes

From: Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

Traits

N

DAP

DMC

TPC

AC

CF

TSS

Temperature

Combined analysis

 DAP

120

1

      

 DMC

119

0.22*

      

 TPC

120

−0.14

−0.34**

     

 AC

120

−0.1

−0.45***

0.34**

    

 CF

120

−0.28*

−0.36**

0.52***

0.39***

   

 TSS

97

0.31*

0.34**

−0.08

−0.3*

−0.2

  

 Temperature

120

0.34**

0.15

−0.55***

−0.35**

−0.42***

0.44***

 

 Rainfall

120

−0.27*

−0.21*

0.42***

0.38***

0.53***

−0.4***

−0.65***

  1. DAP days after planting, DMC dry matter content, AC ash content, CF crude fiber, TPC total protein content, TSS total soluble solids
  2. ***(p < 0.0001), **(p < 0.001), *(p < 0.01)