. 2022 Aug 16;11(8):1585. doi: 10.3390/antiox11081585

Table 1.

Effect of different levels of water deficit on the content of polyphenol components (μg g⁻¹ DW) in tomato fruit.

Treaments		CK	T1	T2	T3	T4
Flavonoids	Rutin	160.65 ± 25.66 ^b	371.63 ± 37.97 ^a	429.93 ± 40.94 ^a	337.22± 9.41 ^a	331.47 ± 22.47 ^a
	Quercetin	633.07 ± 18.24 ^ab	716.21 ± 85.74 ^a	764.43 ± 69.00 ^a	674.87 ± 15.35 ^ab	499.19 ± 41.65 ^b
	Naringenin	144.66 ± 13.74 ^a	166.06 ± 4.20 ^a	163.39 ± 8.96 ^a	152.52 ± 4.37 ^a	150.09 ± 1.70 ^a
	Kaempferol	1.53 ± 0.31 ^b	2.33 ± 0.38 ^b	2.58 ± 0.66 ^b	2.16 ± 0.25 ^b	3.89 ± 0.35 ^a
Phenols	Protocatechuic acid	8.69 ± 0.19 ^b	33.66 ± 4.34 ^a	37.45 ± 3.76 ^a	44.96 ± 6.04 ^a	41.95 ± 4.72 ^a
	P-hydroxybenzoic acid	18.95 ± 0.82 ^ab	22.74 ± 1.28 ^a	20.01 ± 3.05 ^a	19.16 ± 1.65 ^ab	13.78 ± 1.19 ^b
	Chlorogenic acid	1195.52 ± 112.65 ^b	1811.66 ± 60.22 ^a	1871.26 ± 82.64 ^a	1651.91 ± 58.10 ^a	1087.77 ± 68.75 ^b
	Gallic acid	31.25 ± 2.69 ^c	50.08 ± 6.99 ^b	88.64 ± 5.41 ^a	63.83 ± 7.77 ^b	28.09 ± 1.79 ^c
	P-coumaric acid	0.52 ± 0.10 ^a	0.33 ± 0.06 ^a	0.54 ± 0.18 ^a	0.50 ± 0.01 ^a	0.31 ± 0.07 ^a
	Ferulic acid	9.92 ± 0.24 ^a	9.44 ± 3.12 ^a	14.61 ± 4.82 ^a	17.40 ± 1.04 ^a	8.50 ± 1.72 ^a
	Benzoic acid	165.74 ± 28.56 ^b	302.62 ± 84.04 ^ab	399.91 ± 43.28 ^a	427.1 ± 28.53 ^a	220.18 ± 23.42 ^b
	Cinnamic acid	1.30 ± 0.22 ^c	1.13 ± 0.04 ^c	2.95 ± 0.70 ^a	1.57 ± 0.31 ^bc	2.54 ± 0.24 ^ab
	Gentisic acid	16.87 ± 2.70 ^c	53.32 ± 5.35 ^a	62.23 ± 6.30 ^a	33.63 ± 4.85 ^b	30.86 ± 4.07 ^bc
	Caffeic acid	0.53 ± 0.02 ^ab	0.43 ± 0.02 ^b	0.62 ± 0.02 ^a	0.58 ± 0.09 ^ab	0.53 ± 0.04 ^ab
	Cynarin	3.92 ± 0.39 ^b	7.15 ± 0.80 ^a	5.76 ± 0.73 ^ab	4.31 ± 0.83 ^b	3.63 ± 0.60 ^b
	Sinapic acid	2.07 ± 0.26 ^b	1.54 ± 0.17 ^ab	2.23 ± 0.40 ^ab	2.15 ± 0.21 ^ab	2.42 ± 0.08 ^a

Note: Different lowercase letters in the same row of the table indicate significant differences between treatments (p < 0.05). Abbreviations: CK: fully irrigated treatment, which was 90% of the field moisture capacity; T1: substrate moisture content was 80% of the field moisture capacity; T2: substrate water content was 65% of the field moisture capacity; T3: substrate moisture content was 55% of the field moisture capacity; T4: substrate moisture content was 45% of the field’s moisture capacity.