Physiological responses of coriander (Coriandrum sativum L.) to exogenous 2,4-epibrassinolide at different concentrations

Table 2 Effects of different concentrations of exogenous EBR on photosynthetic parameters of coriander leaves

Treatment	P_n (µmol·m^− 2·s^− 1)	T_r (mmol·m^− 2·s^− 1)	G_s (mol·m^− 2·s^− 1)	C_i (µmol·mol^− 1)
CK	5.27 ± 0.03^d	2.83 ± 0.07^d	112.33 ± 3.18^c	379.00 ± 3.21^d
T1	7.60 ± 0.26^c	3.97 ± 0.09^c	159.00 ± 2.89^b	384.33 ± 2.96^d
T2	8.60 ± 0.21^b	4.40 ± 0.15^b	164.33 ± 2.60^b	395.00 ± 4.16^c
T3	10.43 ± 0.26^a	5.13 ± 0.12^a	237.00 ± 3.79^a	437.00 ± 2.89^a
T4	10.00 ± 0.21^a	4.73 ± 0.17^b	235.00 ± 2.31^a	414.33 ± 2.19^b

Note: P_n, net photosynthetic rate; T_r, transpiration rate; G_s, stomatal conductance; C_i, intercellular CO₂ concentration. CK: water spraying; T1: 0.05 mg.L^− 1 EBR; T2: 0.1 mg.L^− 1 EBR; T3: 0.5 mg.L^− 1 EBR; T4: 1.0 mg.L^− 1 EBR. Values indicate mean ± SE (n = 3). Different lowercase letters in the columns represent significant differences among different treatments according to one-way ANOVA (Duncan’s test, P < 0.05)

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