Research Article

Effective Microorganisms Improve Growth, Nutrients Uptake, Normalized Difference Vegetation Index, Photosystem II, and Essential Oil While Reducing Canopy Temperature in Water-Stressed Salvia sclarea Plants

Table 3

Effects of nitrogen-fixing bacteria (NFB) on oil (%), total phenol (µg/GH/g DW), and dehydrogenase activity (DA) (µg Tpf/g dry soil/day) of clary (Salvia sclarea) plants grown under two irrigation (IR) treatments.

TreatmentOil (%)Total phenol (µg/GH/g DW)DA (µg tpf/g dry soil/day)

Irrigation (IR)
IR1001.01†b93.2b177a
IR501.11a115.4a123b

NFB
Control0.89c94.4d132d
B. subtilis1.02b99.1cd160ab
Ps. flu1.09ab104.1bc166a
Cyanobacteria1.21a108.9b143c
Trichoderma1.11ab114.9a149bc

IR × NFB
T10.85d87.0g163c
T20.92cd90.6fg189ab
T31.01a-d93.2efg193a
T41.20a96.0efg171bc
T51.09abc99.0def169c
T60.93bcd101.7de100f
T71.12abc107.7cd130de
T81.16a115.0bc140d
T91.22a121.7ab114ef
T101.13ab130.8a130de

Mean values within the same column for each trait with the same lowercase letter are not significantly different according to Tukey’s honestly significant difference (HSD) test at . Measurements were done at 120 days after transplanting. IR100, 100% of reference crop evapotranspiration (ETo); IR50, 50% of reference crop evapotranspiration (ETo); T1, 100% ETo without nitrogen-fixing bacteria; T2, 100% ETo + B. subtilis; T3, 100% ETo + Ps. flu; T4, 100% ETo + Cyanobacteria; T5, 100% ETo + Trichoderma; T6, 50% ETo without nitrogen-fixing bacteria; T7, 50% ETo + B. subtilis; T8, 50% ETo + Ps. flu; T9, 50% ETo + Cyanobacteria; T10, 50% ETo + Trichoderma.