Table 5. The environmental factor(s) selected by best subset general linear regression model based on Bayesian information criteria for the effects of QTL by environment interaction (QTL x E) for panicle traits. PL: panicle length; PBN: number of primary branches; SBN: number of secondary branches. A x B and C x D denote the cross from AP13 x DAC and WBC x VS16, respectively. Tmean, Rainfall, DL, and SRAD are annual mean temperature, total rainfall, day length (photoperiod) and average solar radiation in 2016, respectively. * indicates the environmental factor that was considered as the candidate factor for the QTL x E based on the model.