Silicon Improves Maize Photosynthesis in Saline-Alkaline Soils

Table 4

Effects of silicon on stomatal conductance () in leaves of maize.

Growth stages	Stomatal conductance () (mol⋅m^−2⋅s^−1)
	T1	T2	T3	T4	T5
Big trumpet stage	0.39 ± 0.06^b	0.37 ± 0.08^b	0.40 ± 0.02^b	0.57 ± 0.09^a	0.56 ± 0.07^a
Silking stage	0.66 ± 0.03^b	0.63 ± 0.05^b	0.65 ± 0.06^b	0.75 ± 0.08^a	0.78 ± 0.09^a
Grain filling stage	0.47 ± 0.08^c	0.45 ± 0.03^c	0.58 ± 0.07^b	0.66 ± 0.05^a	0.69 ± 0.06^a
Milk stage	0.23 ± 0.02^c	0.25 ± 0.03^c	0.32 ± 0.02^b	0.39 ± 0.03^a	0.38 ± 0.01^a

Means (±SD) labeled with different letters within each column are significantly different () by Duncan’s test, .