Table 4.

Genetic correlation coefficients ± standard errors between Z₁ and Z₂ for yield and the corresponding Z₁ and Z₂ transformations^a for other traits.

Z1	Yield	Z2	Yield
Stalk lodging	0.44 ± 0.35	Stalk lodging	−0.55 ± 0.22*
Days to silking	0.36 ± 0.20	Days to silking	−0.27 ± 0.12*
Kernel moisture	0.71 ± 0.23*	Kernel moisture	0.91 ± 0.86
Plant height	0.36 ± 0.18*	Plant height	0.88 ± 0.06*
Ear height	0.83 ± 0.17*	Ear height	0.75 ± 0.08*
Tunnel length	0.15 ± 0.55	Tunnel length	−
Kernel resistance	0.51 ± 0.32	Kernel resistance	−

^aDefinitions of transformations Z₁ and Z₂ can be found in the materials and methods section.

^*Significantly different from zero at 0.05 probability level.