. 2019 Feb 12;14(2):e0211315. doi: 10.1371/journal.pone.0211315

Table 4. Main results for the mixed analysis for each treatment of the periodic drought-stress experiment.

F tests for the fixed effect of block (B), and for the covariates of days for germination (DG) and height at the beginning of the experiment (H2), estimates of variance components of the random effects and their significance based on likelihood ratio tests, individual ( ${\hat{h}}_{i}^{2}$ ) and family means ( ${\hat{h}}_{f}^{2}$ ) heritability estimates and their standard errors, coefficients of additive genetic variance ( ${\hat{C V}}_{A} %$ ), and values of phenotypic differentiation among populations a ( ${\hat{Q}}_{S T}$ ) and their standard errors.

		B (F_19,152)^a	DG (F_1,896)	H2 (F_1,896)	${\hat{σ}}_{p}^{2}$	${\hat{σ}}_{f}^{2}$	${\hat{σ}}_{e}^{2}$	${\hat{h}}_{i}^{2}$	${\hat{h}}_{f}^{2}$	${\hat{C V}}_{A}$	${\hat{Q}}_{S T}$
T21W	SDW	3.84^***	2.78^ns	2043.5^***	1.71^***	1.09^**	24.04^***	0.13±0.05	0.5±0.02	30.05	0.21±0.09
	RDW	3.42^***	1.15^ns	883.9^***	1.09^***	0.873^***	17.22^***	0.15±0.02	0.48±0.02	24.21	0.17±0.11
	LDW	3.22^***	7.31^**	754.1^***	0.125^ns	0.204^*	7.82^***	0.08±0.04	0.32±0.06	18.77	—
	TDW	4.72^***	1.23^ns	1529^***	7.43^***	5.7^**	128.9^***	0.12±0.04	0.41±0.04	25.14	0.18±0.1
	RCD	0.85^ns	4.5^*	298.9^***	0.0005^*	0^ns	0.033^***	—	—	—	—
	DEF	2.48^***	3.1^ns	3.6 ^ns	0 ^ns	0^ns	3.29^***	—	—	—	—
	NSB	0.47^ns	1.27^ns	0.17^ns	0^ns	0 ^ns	0.284^***	—	—	—	—
	H	1.97^*	1.58^ns	3547.4^***	46.46^***	21.02^**	442.8^***	0.14±0.05	0.46±0.02	17.45	0.27±0.08
	BS	6.95^***	1.17^ns	381.75^***	0.257^***	0.108^**	3.29^***	0.1±0.04	0.37±0.03	na	0.28±0.07
	DA	4.35^***	0.97^ns	115.3^***	0.046^ns	0.08^ns	3.29^***	—	—	—
	S	0.37^ns	2.26^ns	12.41^***	0.872^**	0.373 ^ns	3.29^***	—	—	—	—
T27D	SDW	2.77^***	3.47^ns	1459.8^***	1.174^***	0.494^***	6.628^***	0.21±0.06	0.57±0.02	29.36	0.28±0.07
	RDW	5.9^***	1.96^ns	251.4^***	0.831^***	0.363^***	3.524^***	0.28±0.07	0.65±0.02	25.42	0.27±0.07
	LDW	7.37^***	0.46^ns	83.3^***	0.098^**	0^ns	2.901^***	—	—	—	—
	TDW	8.54^***	2.87^ns	617.1^***	5.59^**	1.6^**	28.22^***	0.15±0.03	0.43±0.04	20.93	0.36±0.05
	RCD	1.44^ns	0.35^ns	285.58^***	0.005^**	0.001^*	0.034^***	0.11±0.05	0.41±0.02	9.39	0.37±0.05
	DEF	19.4^***	0.52^ns	46.48^***	0.101^*	0.05^ns	3.29^***	—	—	—	—
	NSB	1.71^*	0.25^ns	2.68^ns	0.0006^ns	0.028^*	0.372^***	0.21±0.11	0.58±0.04	16.12	—
	H	1.05^ns	0.16^ns	25057.4^***	62.04^***	29.03^**	356.5^***	0.23±0.07	0.6±0.02	20.58	0.26±0.08
	BS	1.81^*	0.06^ns	335.84^***	0.264^***	0.133^***	3.29^***	0.12±0.05	0.35±0.02	na	0.25±0.07
	DA	1.62^*	0.07^ns	78.1^***	0.073^*	0.054^ns	3.29^**	—	—	—	—
	S	3.61^***	3.66^ns	0.9^ns	0.645^***	0.255^*	3.29^***	0.22±0.06	0.5±0.02	na	0.30±0.06

Keys to variances: $σ_{p}^{2}$ population, $σ_{f}^{2}$ family, $σ_{e}^{2}$ error

T21W, well-watered treatment; T27D, drought-stress treatment; SDW, stem dry weight; RDW, root dry weight; LWD, leaf dry weight; TWD, total dry weight; RCD, root collar diameter; DEF, defoliation; NSB number of secondary branches; H, height; BS, bud set; DA, dry apex; S, survival

na, not applicable

Significance levels:

*** p < 0.001

** p < 0.01

* p < 0.05

ns, not significant

^a: df between groups, df within groups