Table 8 Effect of integrative deficit drip irrigation and plant growth promoting rhizobacteria on chlorophyll content (a and b), PO, PPO, total phenol and N% of rice plants grown saline soil for (SI) 2016/2017 and (SII) 2017/2018 seasons

Season

NS

NS

*

NS

NS

(SI) 2017

0.28 ± 0.01a

0.32 ± 0.00a

1.50 ± 0.20a

2.16 ± 0.23a

1.20 ± 0.04a

(SII) 2018

0.26 ± 0.02a

0.30 ± 0.00a

1.39 ± 0.23b

2.25 ± 0.22a

1.22 ± 0.04a

Irrigation

**

**

**

**

**

FI

0.32 ± 0.01a

0.34 ± 0.01a

1.50 ± 0.22a

2.30 ± 0.17a

1.25 ± 0.04a

DI

0.23 ± 0.01b

0.28 ± 0.00b

1.39 ± 0.11b

2.11 ± 0.21b

1.17 ± 0.03b

PGPR

**

**

**

**

**

⁻PGPR

0.25 ± 0.00b

0.24 ± 0.02b

1.29 ± 0.05b

1.89 ± 0.14b

1.10 ± 0.02b

⁺PGPR

0.30 ± 0.01a

0.38 ± 0.01a

1.61 ± 0.11a

2.53 ± 0.20a

1.32 ± 0.02a

I × PGPR

**

**

**

**

**

I₁₀₀ × ⁻PGPR

0.30 ± 0.01b

0.27 ± 0.01c

1.41 ± 0.23b

1.96 ± 0.31c

1.12 ± 0.01c

I₈₀ × ⁻PGPR

0.19 ± 0.02c

0.21 ± 0.00d

1.18 ± 0.13c

1.82 ± 0.23c

1.08 ± 0.03c

I₁₀₀ × ⁺PGPR

0.34 ± 0.01a

0.41 ± 0.02a

1.60 ± 0.14a

2.65 ± 0.28a

1.38 ± 0.01a

I₈₀ × ⁺PGPR

0.29 ± 0.01b

0.35 ± 0.01b

1.61 ± 0.21a

2.40 ± 0.36b

1.26 ± 0.02b