Phenotypic correlation coefficients among biomass yield and yield components using mean data for 54 half-sib progenies derived from four switchgrass populations evaluated under 1-cut system at Knoxville, TN (2011-2012).

Table 4: Phenotypic correlation coefficients among biomass yield and yield components using mean data for 54 half-sib progenies derived from four switchgrass populations evaluated under 1-cut system at Knoxville, TN (2011-2012).

Trait	Dry matter yield	Plant height	Tiller count	Days to heading
Plant height	0.69^**
Tiller count	0.81^**	0.40^**
Days to heading	0.60^**	0.56^**	0.38^**
Tiller diameter	-0.02	0.21	-0.14	-0.12

^**Significant at the 0.01 probability level.