. 2016 Jun 2;7:729. doi: 10.3389/fpls.2016.00729

Table 6.

Variance components best fit models following weighted analysis, narrow sense heritability and genetic advance under contrasting conditions in a cross of Zea mays L.

Traits		[D] ± SE	[H] ± SE	[F] ± SE	[E] ± SE	χ ² (d.f.)	$h_{n}^{2}$ (%)		GAM%
							F₂	F_∞
LT (°C)	NS	21.9 ± 2.61^**		−4.54 ± 1.87^*	2.22 ± 0.33^**	10.0 (3)	78.4	88.8	14.0
	HS	24.4 ± 2.75^**			2.11 ± 0.31^**	12.6 (4)	69.3	88.5	8.8
CMT (%)	NS	209.0 ± 18.9^**			3.58 ± 0.53^**	8.95 (4)	76.9	97.5	41.7
	HS	235.2 ± 22.2^**			7.15 ± 1.06^**	7.18 (4)	82.7	96.4	57.9
TR (μ g cm⁻² S⁻¹)	NS	0.01 ± 0.001^**		−0.004 ± 0.001^**	0.001 ± 0.0002^**	11.3 (3)	92.0	95.7	110.1
	HS	6.3 ± 0.81^**			0.83 ± 0.12^**	0.74 (4)	68.6	86.2	53.1
LF (%)	NS	23.3 ± 2.16^**		3.70 ± 1.53^*	0.42 ± 0.06^**	1.55 (3)	89.8	98.0	56.7
	HS	86.5 ± 10.1^**			8.62 ± 1.27^**	5.24 (4)	69.2	89.9	69.3
EL (cm)	NS	0.07 ± 0.04	0.24 ± 0.06^**		0.02 ± 0.002^**	8.81 (3)	88.4	95.7	48.7
	HS	13.8 ± 1.41^**			0.76 ± 0.11^**	4.02 (4)	73.2	92.9	34.0
KPE	NS	1468.4 ± 146.4^**		265.2 ± 104.2^**	62.4 ± 9.28^**	4.28 (3)	62.0	93.0	114.8
	HS	2494.4 ± 276.4^**			203.3 ± 30.1^**	6.81 (4)	80.0	90.0	196.4
HGW (g)	NS	13.2 ± 1.51^**			1.19 ± 0.18^**	7.25 (4)	78.4	90.3	13.7
	HS	15.7 ± 1.85^**			1.59 ± 0.24^**	3.59 (4)	75.7	89.3	15.5
GYPP (g)	NS	822.3 ± 79.4^**		249.9 ± 48.2^**	17.1 ± 2.55^**	1.87 (3)	72.2	97.0	61.4
	HS	1408.3 ± 131.4^**			37.6 ± 5.60^**	6.16 (4)	89.0	97.0	105.6

^*,**

Significant at P = 0.05, 0.01, respectively.

NS, Non-stressed; HS, Heat-stressed; D, Additive; H, Dominance; F, Additive-dominance; E, Environmental. χ², Chi-square; $h_{n}^{2}$ , Narrow sense heritability (%); F₂, Filial generation two; F_∞, Filial infinity generation; GAM%, Genetic advance as percent of mean; LT, Leaf temperature (°C); CMT, Cell membrane thermo-stability (%); TR, Transpiration rate (μg cm⁻² S⁻¹); LF, Leaf firing (%); EL, Ear length (cm); KPE, Kernels per ear; HGW, 100-grain weight (g); GYPP, Grain yield per plant (g).