. 2021 Mar 5;10(3):496. doi: 10.3390/plants10030496

Table 2.

Interaction of the year with the irrigation regime and the BR concentrations with the activity of catalase, peroxidase, superoxide dismutase and polyphenol oxidase enzymes and the content of hydrogen peroxide and proline.

Year	Irrigation Regime	Brassinolides Concentration	CAT ^† Unit mg Protein⁻¹ Min⁻¹	POD Unit mg Protein⁻¹ Min⁻¹	SOD Unit mg Protein⁻¹ Min⁻¹	PPO μmol Min⁻¹	H₂O₂ mmol g⁻¹ FW	Pro μmol g⁻¹ FW
Year 1	Full watering	0	1.47 ^{o ‡}	4.94 ^h	1.76 ⁱ	0.947 ^fg	125.03 ^hi	1.84 ^o
		0.5	3.21 ⁱ	4.54 ^j	1.99 ^h	0.793 ^hi	120.3 ^j	2.89 ^l
		1	2.72 ^jk	3.84 ^l	2.23 ^g	0.667 ^ij	120.95 ^j	2.84 ^l
		1.5	1.75 ⁿ	3.73 ^lm	1.83 ⁱ	0.603 ^jk	124.99 ^hi	2.46 ^m
	Watering until flowering	0	3.63 ^h	5.79 ^f	2.92 ^e	0.86 ^gh	154.61 ^c	3.48 ^jk
		0.5	3.9 ^g	6.44 ^d	2.87 ^e	1.54 ^c	152.61 ^d	3.85 ⁱ
		1	4.25 ^e	6.19 ^e	2.73 ^f	1.25 ^d	150.49 ^ef	4.01 ^hi
		1.5	4.12 ^ef	5.88 ^f	2.7 ^f	0.993 ^fg	153.05 ^cd	3.98 ^hi
	Watering until branching	0	5.48 ^d	6.18 ^e	3.4 ^d	1.14 ^de	169.03 ^a	6.67 ^cd
		0.5	5.87 ^c	7.32 ^a	4.17 ^a	2.13 ^a	168.17 ^a	7.37 ^a
		1	6.58 ^b	7.15 ^b	3.83 ^b	1.74 ^b	167.47 ^a	7.1 ^ab
		1.5	7.34 ^a	6.86 ^c	3.6 ^c	1.57 ^c	167.83 ^a	6.47 ^de
Year 2	Full watering	0	2 ^m	3.62 ^mn	1.58 ^jk	0.28 ^m	120.55 ^j	1.78 ^o
		0.5	2.38 ^l	3.51 ⁿ	1.33 ^l	0.347 ^m	117.74 ^k	1.95 ^o
		1	2.41 ^l	2.87 ^o	0.93 ^no	0.417 ^lm	116.04 ^l	2.21 ^mn
		1.5	2.35 ^l	1.88 ^q	0.89 ^no	0.273 ^m	120.6 ^j	1.84 ^o
	Watering until flowering	0	2.77 ^jk	4.88 ^h	1.52 ^k	0.58 ^jk	126.64 ^gh	3.24 ^k
		0.5	2.91 ^j	4.73 ⁱ	1.09 ^m	0.5 ^kl	127.21 ^g	3.74 ^ij
		1	2.78 ^jk	4.26 ^k	1 ^mno	0.41 ^k−m	124.62 ⁱ	4.64 ^g
		1.5	2.7 ^k	3.79 ^l	0.88 ^no	0.29 ^m	125.93 ^g−i	4.22 ^h
	Watering until branching	0	3.19 ⁱ	5.64 ^g	1.7 ^ij	0.49 ^kl	156.42 ^b	5.8 ^f
		0.5	3.45 ^h	4.22 ^k	1.03 ^mn	0.68 ^ij	149.33 ^f	6.85 ^bc
		1	4.03 ^g	3.59 ⁿ	0.94 ^no	0.79 ^hi	151.91 ^de	7.26 ^a
		1.5	3.89 ^g	2.57 ^p	0.69 ^p	1.03 ^ef	154.4 ^c	6.33 ^e

‡ According to Duncan’s multiple ranges test, values followed by the same letter within the columns are not significantly different at a 5% statistical level. † CAT = catalase; POD = peroxidase; SOD = superoxide dismutase; PPO = polyphenol oxidase; H₂O₂ = hydrogen peroxide; and Pro = proline.