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Table 2 Summary of the models fitted and their corresponding log likelihood

From: Identification of crop cultivars with consistently high lignocellulosic sugar release requires the use of appropriate statistical design and modelling

Model Equation Field and laboratory termsa Cultivar by trial interactionb Log likelihood Number of variance parameters Heritability
       2010 2011
A 2 Z u u = 0 θ g 1 g 2 = 0 -88376.08 4 0.12 0.20
B 1 Z u u ≠ 0 θ g 1 g 2 = 0 -70884.82 26 0.37 0.43
C 1 Z u u ≠ 0 θ g 1 g 2 = 0.66 -70853.58 27 0.46 0.49
  1. aZ u u = 0 implies the terms indexed with a L or F are not included in the model (see Methods and associated Tables 3 and 4); b θ g 1 g 2 = 0 implies the genetic covariance between the two trials is zero and that no cultivar by trial interaction is fitted. This is equivalent to fitting the two trials separately.