Suppl. Table 1: Summary of the ANOVA for shoot length (SL), root length (RL), plant fresh weight (SFW), plant dry weight (SDW), nitrogen (N), phosphorous (P) and potassium (K) content of sunflower seedlings applied with various sources of sulfate fertilizers viz.
(NH4)2SO4, CaSO4.2H2O, K2SO4 and ZnSO4 and MgSO4 at 0, 20 and 40 kg ha-1
SOVa SL
(cm)
RL (cm)
SFW (g)
SDW (g)
N (mg Kg-1)
P (mg Kg-1)
K (mg Kg-1) Treatment
s *** *** *** *** *** *** ***
CVb 9.25 9.14 8.62 11.35 6.02 5.35 4.69
a SOV= source of variation
b coefficient of variation
NS = P≥0.05; * = P≤ 0.05; ** P≤ 0.01 *** = P≤ 0.001
Suppl. Table 2: Summary of the ANOVA for leaf relative water content (RWC), SPAD value (Chl), photosynthetic rate (A), transpiration rate (E), stomatal conductance (gs) and sub-stomatal conductance (Ci) of sunflower with or without exposure to drought stress and applied with various doses of gypsum.
SOVa
Leaf RWC (%)
Leaf Chl (SPAD value)
A
(µmol CO2 m-2 s-1)
E
(mmol H2O m-2 s-
1)
gs
(mmol H2O m-2 s-
1
Ci
(µmol H2O m-2 s-1)
Drought
(D) *** *** *** *** *** ***
Sulfur (S)
*** *** *** *** *** ***
D × S
* NS *** * *** NS
CVb 4.42 6.17 4.67 6.1 6.63 5.91
a SOV= source of variation
b coefficient of variation
NS = P≥0.05; * = P≤ 0.05; ** P≤ 0.01 *** = P≤ 0.001
Suppl. Table 3: Summary of the ANOVA for catalase (CAT), guaiacol peroxidase (GPX), superoxide dismutase (SOD) activity, achenes per head (AH), 1000-grain weight (GW), grain yield (GY) and biological yield (BY) of sunflower with or without exposure to drought stress and applied with optimized doses of gypsum
SOVa
CAT (µmol H2O2
min-1 mg-1 protein)
GPX (µmol guaiacol min-1
mg-1 protein)
SOD (Units SOD
min-1 mg-1 protein)
AH GW
(g)
GY (t ha-1)
BY (t ha-1) Drought
(D) *** *** *** *** *** *** ***
Sulfur (S) *** *** *** *** *** *** ***
D × S NS * * NS NS NS NS
CVb 7.49 8.61 5.77 4.81 5.9 6.65 0.79
a SOV= source of variation
b coefficient of variation
NS = P≥0.05; * = P≤ 0.05; ** P≤ 0.01 *** = P≤ 0.001