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. 2017 May 3;12(5):e0174398. doi: 10.1371/journal.pone.0174398

Table 1. Effect of watering, virus accumulation and experimental replicate on aphid transmission efficiency of CaMV and TuMV.

Response trait Factorsa and interactions Full modelb Reduced model
dfc Deviance P-value dfc Deviance P-value
Transmission rate of CaMVa Watering 1 24.56 <0.0001 2 30.99 <0.0001
Virus accumulation (log) 1 1.42 0.232
Replicate 2 9.93 0.007 2 8.986 0.011
Watering x Accumulation 1 0.222 0.637
Watering x Replicate 2 0.367 0.832
Accumulation x Replicate 2 2.252 0.324
Replicate x Accumulation x Watering 2 3.253 0.197
Transmission rate of TuMVa Watering 1 30.62 <0.0001 2 214.6 <0.0001
Virus accumulation (log) 1 18.28 <0.0001 2 18.27 0.0002
Replicate 2 0.489 0.783
Watering x Accumulation 1 0.357 0.550
Watering x Replicate 2 1.391 0.500
Accumulation x Replicate 2 0.990 0.610
Replicate x Accumulation x Watering 2 10.40 0.006

a Factors are watering regime (nutrient solution; well-watered vs. water deficit), virus accumulation (log-transformed) and experimental replicate (n = 3).

b The full model, including all factors and interactions, is tested using a generalized linear model (GLM) with binomial (logit) link function.

c The reduced model includes only significant terms after sequential removal of non-significant terms and interaction.