Table 3.

Influence of irrigation regimes and different exogenously applied substances on some yield attributes of diverse rice genotypes over two summer seasons of 2021 and 2022.

Studied Factor		Leaf area (cm2)	Plant height (cm)	No of panicles per plant	Panicle length (cm)
Irrigation
Well-watered		45.11 a	106.82 a	21.18 a	21.92 a
Drought stress		28.51 b	86.05 b	15.88 b	19.17 b
Foliar application
Untreated control		34.27 c	93.33 c	17.50 c	19.75 c
Nano-silicon		37.74 a	98.12 a	18.68 b	20.73 b
Potassium sulfate		36.84 b	96.47 b	18.84 ab	20.63 b
Proline		38.40 a	97.82 a	19.09 a	21.07 a
Genotypes
IRRAT		43.86 a	109.48 a	12.29 b	19.45 b
G178		34.08 b	90.07 b	22.03 a	20.12 b
IR64		32.49 b	89.75 b	21.26 a	22.07 a
ANOVA	df	P value
Irrigation (IR)	1	<0.001	<0.001	0.011	<0.001
Foliar application (FA)	3	<0.001	0.032	0.006	<0.001
Genotype (G)	2	<0.001	<0.001	<0.001	<0.001
Year (Y)	1	0.061	0.044	0.331	0.325
IR × F	3	<0.001	<0.001	0.022	0.008
IR × G	2	<0.001	<0.001	<0.001	<0.001
IR × Y	1	0.082	0.021	0.611	0.984
FA × G	6	<0.001	<0.001	0.379	<0.001
FA × Y	3	0.051	0.855	0.498	0.021
G × Y	2	0.067	0.054	0.761	0.768
IR × FA × G	6	<0.001	<0.001	0.002	<0.001
IR × FA × G × Y	3	0.225	0.065	0.527	0.093