Table 2. LRT analysis and Tukey’s pairwise test (p≤0.05) for genomic selection prediction for the first cross-validation strategy for fresh root yield, dry root yield and dry matter content.

	DF	Fresh root yield		Dry root yield		Dry matter content
Deviance		${\mathit{r}}_{\widehat{\mathit{y}}\mathit{y}}$	b	${\mathit{r}}_{\widehat{\mathit{y}}\mathit{y}}$	b	${\mathit{r}}_{\widehat{\mathit{y}}\mathit{y}}$	b
Methods	4	95.62*	1.20	42.44*	60.36*	1.26	23.7*
Cross validation	1	255.41*	50.72*	243.31*	148.42*	271.18*	114.11*
Tukey multiple comparison test
BayesB		0.4571B (0.0472)	1.5935A (0.0922)	0.4737B (0.0361)	1.5435B (0.0866)	0.5668A (0.0261)	1.3595B (0.0826)
BLASSO		0.4546B (0.0477)	1.5982A (0.0746)	0.4743B (0.0426)	1.5686A (0.0438)	0.5655A (0.0488)	1.3702A (0.0438)
G-BLUP		0.4570B (0.0469)	1.5979A (0.0412)	0.4689C (0.0456)	1.5469B (0.0329)	0.5667A (0.0487)	1.3604B (0.0205)
RKHS		0.4756A (0.0452)	1.5904A (0.0381)	0.4818A (0.0444))	1.5603A (0.0339)	0.5671A (0.0497)	1.3662A (0.0235)
RR-BLUP		0.4570B (0.0411)	1.5980A (0.0929)	0.4740B (0.0329)	1.5469B (0.0870)	0.5666A (0.0205)	1.3605B (0.0811)

$r_{\widehat{y}y}$: predictive ability; b: bias, DF: degrees of freedom.

*significance deviance for 5% probability in χ² test.

Major letters indicate significance differences between genomic prediction methods (p<0.05) by Tukey’s pairwise test. Standard error for the genomic prediction method is in parentheses.