Role of exogenous-applied salicylic acid, zinc and glycine betaine to improve drought-tolerance in wheat during reproductive growth stages

Table 3 p-values of the two-way factorial analysis of growth, yield, and physiological and biochemical parameters of wheat as affected by various foliar treatments under both soil water conditions

Parameters	Main factors effects		Interaction effects
Parameters	S	F	S × F
Plant height	< 0.0001	< 0.0065	< 0.0392
Fresh weight of plants	< 0.0001	< 0.0249	< 0.0486
Dry weight of plants	< 0.0001	< 0.0001	< 0.0372
Leaf area of plants	< 0.0001	< 0.0038	< 0.0435
Number of tillers	< 0.0001	< 0.0037	< 0.0467
Number of spikes	< 0.0001	< 0.0051	< 0.0245
Number of grains	< 0.0004	< 0.1066	< 0.4751
Grain weight	< 0.0001	< 0.0001	< 0.0371
1000-grain weight	< 0.0001	< 0.0061	< 0.0497
Biological yield	< 0.0001	< 0.0007	< 0.0378
Grain yield	< 0.0001	< 0.0001	< 0.0212
Harvest index	< 0.0073	< 0.0054	< 0.0485
Chlorophyll a content	< 0.0087	< 0.0019	< 0.0347
Chlorophyll b content	< 0.0180	< 0.0097	< 0.0492
Total chlorophyll content	< 0.0163	< 0.0010	< 0.0345
RWC	< 0.0001	< 0.0273	< 0.0479
Net photosynthesis rate	< 0.0001	< 0.0003	< 0.0198
Transpiration rate	< 0.0001	< 0.0008	< 0.0245
Stomatal conductance	< 0.0001	< 0.0001	< 0.0359
Intercellular CO₂ concentration	< 0.0100	< 0.0204	< 0.0457
APX activity	< 0.0001	< 0.0002	< 0.0021
GR activity	< 0.0001	< 0.0002	< 0.0102
POD activity	< 0.0001	< 0.0001	< 0.0260
CAT activity	< 0.0001	< 0.0001	< 0.0002
SOD activity	< 0.0001	< 0.0001	< 0.0302
MDA content	< 0.0001	< 0.0001	< 0.0430
H₂O₂ content	< 0.0001	< 0.0001	< 0.0469
O₂^.- content	< 0.0001	< 0.0001	< 0.0041
Free proline content	< 0.0001	< 0.0001	< 0.0006
Total soluble sugar	< 0.0001	< 0.0001	< 0.0019

p-values are considered as significant (p < 0.05, n = 3) and highly significant (p < 0.01, n = 3). ‘S’: effect of soil water conditions; ‘F’: effect of foliar treatments; ‘S × F’: effect of the interaction between two variables