Table 3
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Determination coefficients for the correlations between the indices estimated from multispectral and thermal imaging and the IPL

Genotypic values
Phenotypic valuesNDVI( + )0.49***( + )0.85***( + )0.0022 ns(−)0.15***( + )0.19***( + )0.044**
( + )0.52***GNDVI( + )0.15***( + )0.28***(−)0.063***( + )0.12***( + )0.017 ns
( + )0.76***( + )0.090***MCARI2(−)0.04**(−)0.13***( + )0.16***( + )0.036**
( + )0.044***( + )0.40***(−)0.023***PRI( + ) 0.032**( + )0.053***( + )0.006 ns
(−)0.12***(−)0.0044*(−)0.20***( + )0.048***Tsurf – Tair( + )0.41***( + )0.0001 ns
( + )0.012**( + )0.029***( + )0.001 ns( + )0.023***( + ) 0.64***WDI( + )0.026*
(−)0.0061*(−)0.029***( + )0.0009 ns(−)0.084***(−) 0.11***(−)0.11***IPL
Genotypic values
Phenotypic valuesNDVI( + )0.49***( + )0.85***( + )0.0022 ns(−)0.15***( + )0.19***( + )0.044**
( + )0.52***GNDVI( + )0.15***( + )0.28***(−)0.063***( + )0.12***( + )0.017 ns
( + )0.76***( + )0.090***MCARI2(−)0.04**(−)0.13***( + )0.16***( + )0.036**
( + )0.044***( + )0.40***(−)0.023***PRI( + ) 0.032**( + )0.053***( + )0.006 ns
(−)0.12***(−)0.0044*(−)0.20***( + )0.048***Tsurf – Tair( + )0.41***( + )0.0001 ns
( + )0.012**( + )0.029***( + )0.001 ns( + )0.023***( + ) 0.64***WDI( + )0.026*
(−)0.0061*(−)0.029***( + )0.0009 ns(−)0.084***(−) 0.11***(−)0.11***IPL

Acronyms as in Table 1. Above the diagonal, correlations calculated on the genotypic values (BLUPs, n = 241 genotypes). Below the diagonal, correlations calculated on the individual phenotypic values (n = 930 trees). For each correlation, the determination coefficient is indicated together with the sign ( + , positive, −, negative) of the correlation. The correlation coefficients are displayed with their significance level: *p ≤ 0.08; **p ≤ 0.05; ***p ≤ 0.01; ****p ≤ 0.001; ns, non-significant.

Table 3
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Determination coefficients for the correlations between the indices estimated from multispectral and thermal imaging and the IPL

Genotypic values
Phenotypic valuesNDVI( + )0.49***( + )0.85***( + )0.0022 ns(−)0.15***( + )0.19***( + )0.044**
( + )0.52***GNDVI( + )0.15***( + )0.28***(−)0.063***( + )0.12***( + )0.017 ns
( + )0.76***( + )0.090***MCARI2(−)0.04**(−)0.13***( + )0.16***( + )0.036**
( + )0.044***( + )0.40***(−)0.023***PRI( + ) 0.032**( + )0.053***( + )0.006 ns
(−)0.12***(−)0.0044*(−)0.20***( + )0.048***Tsurf – Tair( + )0.41***( + )0.0001 ns
( + )0.012**( + )0.029***( + )0.001 ns( + )0.023***( + ) 0.64***WDI( + )0.026*
(−)0.0061*(−)0.029***( + )0.0009 ns(−)0.084***(−) 0.11***(−)0.11***IPL
Genotypic values
Phenotypic valuesNDVI( + )0.49***( + )0.85***( + )0.0022 ns(−)0.15***( + )0.19***( + )0.044**
( + )0.52***GNDVI( + )0.15***( + )0.28***(−)0.063***( + )0.12***( + )0.017 ns
( + )0.76***( + )0.090***MCARI2(−)0.04**(−)0.13***( + )0.16***( + )0.036**
( + )0.044***( + )0.40***(−)0.023***PRI( + ) 0.032**( + )0.053***( + )0.006 ns
(−)0.12***(−)0.0044*(−)0.20***( + )0.048***Tsurf – Tair( + )0.41***( + )0.0001 ns
( + )0.012**( + )0.029***( + )0.001 ns( + )0.023***( + ) 0.64***WDI( + )0.026*
(−)0.0061*(−)0.029***( + )0.0009 ns(−)0.084***(−) 0.11***(−)0.11***IPL

Acronyms as in Table 1. Above the diagonal, correlations calculated on the genotypic values (BLUPs, n = 241 genotypes). Below the diagonal, correlations calculated on the individual phenotypic values (n = 930 trees). For each correlation, the determination coefficient is indicated together with the sign ( + , positive, −, negative) of the correlation. The correlation coefficients are displayed with their significance level: *p ≤ 0.08; **p ≤ 0.05; ***p ≤ 0.01; ****p ≤ 0.001; ns, non-significant.

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