Variation among population sources component of genetic variation and narrow sense heritability for seasonal biomass production estimated based on half-sib progeny performance under 1-cut systems (2010-2011).

Table 3: Variation among population sources component of genetic variation and narrow sense heritability for seasonal biomass production estimated based on half-sib progeny performance under 1-cut systems (2010-2011).

Source of variation	All data	ARK	OKN	OKS	TX
	Test of fixed effect
Year	^**	^**	^**	^**	^**
	Component of variation
Source	0.05	0	-	-	-
Half-sib progenies/Source	0.08^**	0.07^*	0.12^*	0.09^*	0.04^*
Year × Source	0.00	0	0.00	0.00	0.00
Year × Half-sib progeny/Source	0.00	0	0.00	0.00	0.00
Within Family	0.42^**	0.42^**	0.46^**	0.41^**	0.40^**
Heritability	0.95	0.55	0.83	0.72	0.36

^*Significant at the 0.05 probability level; ^**Significant at the 0.01 probability level.