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Table 2 Partial least square regression models for estimating the microfibril angle (MFA), wood density (D), Klason lignin (KL) content and syringyl to guaiacyl ratio (S/G) from NIR spectra of E. urophylla wood

From: Age trends of microfibril angle inheritance and their genetic and environmental correlations with growth, density and chemical properties in Eucalyptus urophylla S.T. Blake wood

Trait

R²c

RMSEC

R 2 p

RMSECV

RPD

MFA (degrees)

0.72

0.73

0.64

0.84

1.76

D (kg m−3)

0.89

27.0

0.85

30.0

2.70

KL (%)

0.88

0.44

0.85

0.55

2.58

S to G ratio (S/G)

0.92

0.01

0.86

0.13

2.68

  1. R 2 c coefficient of determination of calibration, R 2 p coefficient of determination of validation, RMSEC root mean standard error of calibration, RMSECV root mean standard error of validation, RPD ratio of performance to deviation
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Annals of Forest Science

ISSN: 1297-966X