Table 2.

Descriptive statistics, variance components, and broad-sense heritability (H² ) of southern corn rust resistance.

Subgroup	DH Founder	Tester	NO.	Min	Max	Mean	SD	Tukey-test	Variance components			H2
									${\sigma }_{\text{g}}^2$	${\sigma }_{\text{ge}}^2$	${\sigma }_{\text{e}}^2$
POP1	C783, C229		66	4.73	7.06	6.04	0.49	c	0.98	0.16	1.62	0.64
POP2	C783, UH306		107	4.73	6.75	5.59	0.44	b
POP3	C783, EH		127	4.1	6.13	5.28	0.46	a
POP4	C229, UH306		77	4.1	6.56	5.17	0.57	a
DH Mean			94	4.42	6.63	5.52	0.49
POP1/C116A	C783, C229	C116A	51	4.11	5.89	5.09	0.58	cd	0.64	1.14	2.16	0.54
POP1/EH	C783, C229	EH	40	3.89	5.61	4.83	0.41	bc
POP1/J2416	C783, C229	J2416	52	3.89	6.08	5.01	0.56	c
POP2/C116A	C783, UH306	C116A	87	3.89	5.58	4.7	0.37	ab
POP2/C229	C783, UH306	C229	80	4.14	5.85	5.39	0.31	e
POP2/Z58	C783, UH306	Z58	90	4.11	5.86	5.00	0.38	c
POP3/C116A	C783, EH	C116A	111	3.67	5.86	4.67	0.45	ab
POP3/C229	C783, EH	C229	102	4.21	5.85	5.31	0.34	de
POP3/Z58	C783, EH	Z58	119	3.65	5.86	4.93	0.44	c
POP4/C116A	C229, UH306	C116A	51	4.17	5.64	4.95	0.45	c
POP4/C783	C229, UH306	C783	59	4.77	5.62	5.33	0.26	de
POP4/J2416	C229, UH306	J2416	61	3.68	5.4	4.48	0.41	a
Hybrid Mean			75	4.02	5.76	4.97	0.41

NO., the accession number of each subgroup.

SD, standard deviation.

Tukey-test, significant at P< 0.05. ${\sigma }_{\text{g}}^2$ , genotypic variance. ${\sigma }_{\text{ge}}^2$ , genotype × environment interaction variance. ${\sigma }_{\text{e}}^2$ , error variance.

H², broad-sense heritability.