Table 1.

Summary statistics for plant height (cm) at the three developmental stages (PH1-PH3)

	PH1	PH2	PH3
Min	30.05	60.40	65.72
Mean	62.79	105.70	102.90
Max	79.98	131.00	120.50
$${\mathit{\sigma }}_{\mathit{G}}^2$$	50.58**	144.35**	76.50**
$${\mathit{\sigma }}_{\mathit{G}\times \mathit{E}}^2$$	12.05**	10.26**	13.81**
$${\mathit{\sigma }}_{\mathit{e}}^2$$	6.22	15.91	25.58
h2	0.93	0.96	0.91

Genotypic variance $\left({\mathit{\sigma }}_{\mathit{G}}^2\right)$, genotype-by-environment interaction variance $\left({\mathit{\sigma }}_{\mathit{G}\times \mathit{E}}^2\right)$, error variance ${\mathit{\sigma }}_{\mathit{e}}^2$ and heritability (h ² ). **significant at P < 0.01.