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Table 2 Correlations between critical values of cold hardiness based on different approaches

From: Standardization of electrolyte leakage data and a novel liquid nitrogen control improve measurements of cold hardiness in woody tissue

   Anderson Flint Limlogistic Limgompertz Visual damage
LT20 LT50 LT80 LT20 LT50 LT80 LT20 LT50 LT80 LT20 LT50 LT80 LTmax LT20 LT50 LT80 LST
Anderson LT20                  
LT50 0.44                 
LT80 − 0.10 0.84                
Flint LT20 0.92 0.54 0.60               
LT50 0.40 Identical 0.85 0.53              
LT80 − 0.30 0.88 0.99 0.10 0.89             
Limlogistic LT20 0.89 0.60 0.11 0.94 0.59 0.17            
LT50 0.59 0.81 0.50 0.72 0.81 0.55 0.74           
LT80 0.20 0.70 0.63 0.34 0.72 0.65 0.33 0.88          
Limgompertz LT20 0.91 0.48 − 0.20 0.98 0.47 0.30 0.96 0.69 0.29         
LT50 0.52 0.82 0.56 0.65 0.83 0.60 0.68 Identical 0.91 0.62        
LT80 0.24 0.78 0.68 0.37 0.80 0.72 0.41 0.91 0.98 0.33 0.94       
LTmax 0.70 0.78 0.41 0.83 0.78 0.46 0.84 0.98 0.78 0.81 0.96 0.82      
Visual Damage LT20 0.28 0.28 0.13 0.34 0.30 0.16 0.35 0.42 0.34 0.34 0.40 0.34 0.42     
LT50 0.44 0.46 0.22 0.50 0.47 0.27 0.51 0.60 0.49 0.49 0.58 0.50 0.61 0.85    
LT80 0.46 0.49 0.24 0.51 0.50 0.30 0.53 0.62 0.49 0.50 0.60 0.51 0.62 0.58 0.92   
LST 0.49 0.43 0.14 0.51 0.43 0.21 0.54 0.59 0.46 0.52 0.57 0.47 0.61 0.48 0.80 0.89  
LTE − 0.31 − 0.64 − 0.58 − 0.31 − 0.63 − 0.62 − 0.36 − 0.46 − 0.45 − 0.27 − 0.47 − 0.48 − 0.43 − 0.26 − 0.34 − 0.35 − 0.28
  1. Correlations (⍴) between critical values of cold hardiness (℃) for four electrolyte leakage approaches, visual damage (including lowest survival temperature), and low temperature exotherms. Correlations are calculated for maple genotype means (n = 36) for all indices except LTEs, for which species means (n = 12) are compared to other metrics. We focus on the use of the LT50 critical value extracted using the Limlogistic approach (enclosed with borders). Bolded correlations indicate a significant (α < 0.05) bivariate correlation test