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Table 2 Likelihood ratio tests for sources of the genotype by environment interaction (G × E) for height, diameter and survival at age 22, and processionary moth incidence at age 13

From: Geographic variation in growth, survival, and susceptibility to the processionary moth (Thaumetopoea pityocampa Dennis & Schiff.) of Pinus halepensis Mill. and P. brutia Ten.: results from common gardens in Morocco

 

Full model

Heterogeneity of residual variance

Heterogeneity of genetic variance

Deviations from perfect correlations

Trait

LL

χ 2

P > χ2

χ 2

P > χ2

χ 2

P > χ2

Diameter

5942.9

140.6

< 0.001

1.1

0.294

20.6

< 0.001

Height

11,687.9

277.5

0.000

1.0

0.317

5.9

0.015

Survival

− 516.4

161.1

0.000

1.8

0.180

5.5

0.019

Processionary incidence

1546.6

298.9

0.000

46.2

0.000

25.1

0.000

  1. The likelihood (LL) of the full model allowing for all cases of G × E interaction and those of reduced models restricting different sources of G × E are shown. Significance of the different sources of interactions is tested by likelihood ratio tests comparing the likelihood of the reduced and full models. Significant (p < 0.05) deviations from the full model are highlighted in bold font