Plant Growth-Promoting Rhizobacteria Improve Growth, Morph-Physiological Responses, Water Productivity, and Yield of Rice Plants Under Full and Deficit Drip Irrigation

Rice

Table 10 Effect of integrative deficit drip irrigation and plant growth promoting rhizobacteria on yield component, grain yield, straw yield and water productivities (G-WP and S-WP) of rice plants grown under saline soil for (SI) 2016/2017 and (SII) 2017/2018 seasons

Source of variation	Grain yield (t ha⁻¹)	Straw yield (t ha⁻¹)	G-WP (kg m⁻³)	S-WP (kg m⁻³)
Season	NS	NS	NS	NS
(SI) 2017	4.40 ± 0.54a	7.86 ± 1.11a	0.72 ± 0.10a	1.29 ± 0.20a
(SII) 2018	4.37 ± 0.44a	7.79 ± 0.99a	0.71 ± 0.11a	1.26 ± 0.21a
Irrigation	**	**	NS	*
FI	4.85 ± 0.55a	8.32 ± 0.63a	0.79 ± 0.11a	1.35 ± 0.21b
DI	3.93 ± 0.31b	7.33 ± 0.16b	0.80 ± 0.12a	1.49 ± 0.22 a
PGPR	**	**	**	**
⁻PGPR	4.01 ± 0.28b	7.22 ± 0.66b	0.73 ± 0.11b	1.31 ± 0.19b
⁺PGPR	4.77 ± 0.19a	8.43 ± 0.91a	0.86 ± 0.13a	1.52 ± 0.18a
I × PGPR	**	**	**	**
I₁₀₀ × ⁻PGPR	4.46 ± 0.23b	7.86 ± 0.88b	0.73 ± 0.11b	1.28 ± 0.16c
I₈₀ × ⁻PGPR	3.56 ± 0.20c	6.58 ± 0.72c	0.72 ± 0.11b	1.34 ± 0.21c
I₁₀₀ × ⁺PGPR	5.24 ± 0.31a	8.78 ± 0.62a	0.85 ± 0.12a	1.43 ± 0.19b
I₈₀ × ⁺PGPR	4.30 ± 0.32b	7.98 ± 0.65b	0.87 ± 0.10a	1.62 ± 0.22a

*,**respectively, differences at p ≤ 0.05 and p ≤ 0.01 probability level, ns indicates no significant difference. Means followed by the same letter in each column are not significantly different according to the LSD test (p < 0.05)