Table 16.

The mean values of essential oil content (mL plant⁻¹) of lovage plants as affected with plant spacing, melatonin concentrations and their combination treatments in two cuts of both seasons. Data are means value ± SE (n = 3).

Treatments	First season		Second season
	1st cut	2nd cut	1st cut	2nd cut
Planting space between plants in row (cm)
15	0.044 ± 0.008 c*	0.044 ± 0.012 b	0.044 ± 0.011 c	0.058 ± 0.013 c
30	0.101 ± 0.019 a	0.110 ± 0.022 a	0.113 ± 0.020 a	0.142 ± 0.032 a
45	0.089 ± 0.013 b	0.111 ± 0.029 a	0.095 ± 0.017 b	0.125 ± 0.028 b
Melatonin concentrations (µM)
Without soaking	0.063 ± 0.022 c	0.064 ± 0.028 d	0.066 ± 0.027 d	0.073 ± 0.025 d
0	0.075 ± 0.074 b	0.081 ± 0.032 c	0.079 ± 0.029 c	0.106 ± 0.040 c
75	0.095 ± 0.096 a	0.115 ± 0.046 a	0.106 ± 0.037 a	0.134 ± 0.047 a
100	0.078 ± 0.078 b	0.094 ± 0.028 b	0.084 ± 0.033 b	0.120 ± 0.047 b
Interaction
T1	0.035 ± 0.002 e	0.028 ± 0.002 h	0.030 ± 0.004 h	0.040 ± 0.007
T2	0.045 ± 0.005 de	0.039 ± 0.002 gh	0.044 ± 0.002 g	0.057 ± 0.001 h
T3	0.055 ± 0.004 cde	0.054 ± 0.003 fg	0.059 ± 0.004f	0.073 ± 0.005 g
T4	0.042 ± 0.003 e	0.056 ± 0.008 f	0.043 ± 0.003 g	0.064 ± 0.003 gh
T5	0.078 ± 0.005 bcd	0.083 ± 0.007 e	0.088 ± 0.004 de	0.090 ± 0.002 f
T6	0.097 ± 0.018 ab	0.103 ± 0.009 cd	0.108 ± 0.012c	0.149 ± 0.006 cd
T7	0.124 ± 0.003 a	0.136 ± 0.008b	0.140 ± 0.007 a	0.172 ± 0.006 a
T8	0.105 ± 0.006 ab	0.117 ± 0.018 c	0.118 ± 0.001 bc	0.156 ± 0.006 bc
T9	0.078 ± 0.007 bcd	0.079 ± 0.012 e	0.080 ± 0.002 e	0.089 ± 0.008 f
T10	0.082 ± 0.007 bc	0.101 ± 0.006 d	0.086 ± 0.009 de	0.111 ± 0.001 e
T11	0.108 ± 0.009 ab	0.154 ± 0.010 a	0.120 ± 0.007 b	0.158 ± 0.004 b
T12	0.087 ± 0.003 bc	0.110 ± 0.004 cd	0.093 ± 0.002 d	0.140 ± 0.001 d

^*Means followed by the same letter are not significantly different by the protected LSD, P ≤ 0.05. Data are means value ± SE (n = 3). 1st cut and 2nd cut means the first and second cutts, respectively.