Table 1.

Heritabilities ($h^2$) in each of the six consistent environments of the (elite $\times$ exotic) progeny (AVE607, BEL601, BER601, DAW601, DOM601 and PIE601) for potassium content (K; meq/100 g), sodium content (Na; meq/100 g), and $\alpha$-amino nitrogen content (N; meq/100 g)

	AVE607	BEL601	BER601	DAW601	DOM601	PIE601
$h_K^2$	0.82	0.75	0.87	0.44	0.74	0.85
$h_{\mathit{Na}}^2$	0.76	0.59	0.77	0.37	0.75	0.80
$h_N^2$	0.68	0.49	0.73	0.45	0.63	0.75