Growth and Physiological Responses of Maize and Sorghum Genotypes to Salt Stress

Table 2

Ion concentrations of leaves and stems of four maize genotypes (CUBA1, B73, B5C2, and BR1) irrigated with nutrient or saline solutions for 40 days (replication of 4).

Genotype	Tissue	Treatment	Na^+	Cl^−	Ca^2+	Mg^2+
				(mg g^−1)
CUBA1	Leaves	Control	0.44	11.41	4.25	3.03
		Salt	10.05	19.01	4.28	2.18
	Stems	Control	1.15	17.57	3.15	3.65
		Salt	31.93	47.23	1.88	2.08
B73	Leaves	Control	0.43	12.02	4.73	4.88
		Salt	8.83	26.87	4.95	2.95
	Stems	Control	0.73	19.05	2.45	4.53
		Salt	34.98	54.83	1.88	1.95
B5C2	Leaves	Control	0.38	12.70	3.78	5.13
		Salt	22.18	37.50	3.95	3.43
	Stems	Control	0.23	19.52	4.28	8.13
		Salt	41.58	73.06	2.73	3.18
BR1	Leaves	Control	0.09	8.47	3.95	2.95
		Salt	7.35	18.43	3.95	2.55
	Stems	Control	0.14	14.99	3.65	4.68
		Salt	32.45	50.77	2.78	2.38
ANOVA Summary
Genotype			0.0013	<0.0001	NS	<0.0001
Tissue			<0.0001	<0.0001	<0.0001	NS
Genotype × tissue			NS	NS	0.0188	0.0278
Treatment			<0.0001	<0.0001	NS	<0.0001
Genotype × treatment			0.001	<0.0001	NS	0.0104
Tissue × treatment			<0.0001	<0.0001	0.0377	0.0013
Genotype × tissue × treatment			NS	NS	NS	NS

NS: non-significant.