. 2022 Apr 22;13:853746. doi: 10.3389/fpls.2022.853746

TABLE 5.

Effect of deficit irrigation and biochar application on growth and yield parameters, and water productivity (WP) of sweet corn.

Treatment	Plant height	Leaf area index	Aboveground vegetative dry biomass	Total aboveground dry biomass	Yield	Harvest index	WP

	cm		kg ha⁻¹	kg ha⁻¹	kg ha⁻¹	(%)	kg ha^–1mm^–1
2019
Irrigation (I)
100% ET_c	138.0 a	4.61 a	1,165 ab	3,450 b	12,648 a	65.1 a	27.8 b
70% ET_c	139.0 a	4.61 a	1,350 a	4,239 a	13,726 a	64.1 a	35.0 a
40% ET_c	130.8 b	4.29 a	1,027 b	3,122 b	10,527 b	66.5 a	37.6 a
Biochar (B)
B₀	134.3 a	4.42 a	1,114 a	3,409 a	12,075 a	65.5 a	33.0 a
B_H	136.6 a	4.63 a	1,234 a	3,700 a	12,427 a	65.3 a	33.8 a
B_S	136.8 a	4.45 a	1,194 a	3,702 a	12,398 a	64.8 a	33.7 a
Interaction (I × B)	ns	ns	ns	ns	ns	ns	ns
2020
Irrigation (I)
100% ET_c	143.4 a	4.62 a	2,804 a	5,230 a	7,707 a	39.7 a	15.0 b
70% ET_c	138.3 b	4.79 a	2,460 b	4,830 a	7,495 a	40.7 a	17.7 a
40% ET_c	127.1 c	4.30 a	2,371 b	3,663 b	4,320 b	31.4 b	14.0 b
Biochar (B)
B₀	134.3 b	4.49 a	2,428 b	4,434 a	6,461 a	37.9 a	15.4 a
B_H	137.8 a	4.78 a	2,645 a	4,716 a	6,626 a	37.0 a	15.9 a
B_S	136.8 ab	4.44 a	2,561 ab	4,573 a	6,435 a	37.0 a	15.4 a
Interaction (I × B)	ns	ns	ns	ns	ns	ns	ns

Different letters in a column within a factor indicate significant differences (P ≤ 0.05) among treatments. ‘ns’ represents non-significant difference/interaction.