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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)
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