Table 5.

The mean values of plant height (cm) of lovage plants as affected with plant spacing, melatonin concentrations and their combination treatments in both seasons.

Treatments	First season		Second season
	1st cut	2nd cut	1st cut	2nd cut
Planting space between plants in row (cm)
15	30.8 ± 3.0 c*	23.1 ± 1.8 b	30.3 ± 2.0 c	21.8 ± 2.4 c
30	36.5 ± 2.2 a	28.9 ± 1.7 a	38.1 ± 1.5 a	30.8 ± 2.6 a
45	34.0 ± 2.6 b	27.0 ± 1.8 a	35.0 ± 1.3 b	28.9 ± 1.9 b
Melatonin concentrations (µM)
Without soaking	30.1 ± 3.0 c	24.6 ± 2.7 c	32.7 ± 4.2 c	24.7 ± 3.7 c
0	33.9 ± 3.0 b	26.3 ± 3.3 b	34.6 ± 2.7 b	27.0 ± 4.6 b
75	35.9 ± 2.1 a	27.7 ± 2.6 a	35.8 ± 3.4 a	29.1 ± 5.7 a
100	35.2 ± 2.9 ab	26.8 ± 2.8 ab	34.8 ± 3.9 b	27.8 ± 3.1 b
Interaction
T1	26.7 ± 0.6 f	21.5 ± 1.8 h	27.7 ± 1.5 h	20.0 ± 1.0 e
T2	30.5 ± 2.2 e	22.7 ± 1.7gh	31.7 ± 0.3 fg	21.3 ± 1.0e
T3	33.8 ± 1.4 bcd	24.6 ± 1.1 efg	31.8 ± 0.8 fg	20.3 ± 0.3 e
T4	32.2 ± 1.0 de	23.8 ± 1.7 fgh	30.2 ± 1.4 g	25.6 ± 0.6 d
T5	33.3 ± 0.8 cd	26.3 ± 0.8 def	36.7 ± 1.8 bcd	27.0 ± 1.8 cd
T6	36.5 ± 1.2 ab	29.4 ± 0.8 abc	37.7 ± 1.3 abc	31.4 ± 0.9 ab
T7	38.2 ± 1.2 a	30.1 ± 1.0 a	39.4 ± 0.8 a	32.6 ± 0.8 a
T8	37.8 ± 1.5 a	29.8 ± 0.7 ab	38.8 ± 1.2 ab	32.1 ± 1.4 a
T9	30.3 ± 1.2 e	25.8 ± 1.9 def	33.9 ± 0.4 ef	27.0 ± 1.5 cd
T10	34.7 ± 1.2 bcd	26.7 ± 2.6 cdef	34.4 ± 1.3 de	28.2 ± 1.4 c
T11	35.7 ± 0.6 abc	28.5 ± 0.5 abcd	36.2 ± 1.1 cd	31.0 ± 1.0 ab
T12	35.5 ± 2.3 abc	27.0 ± 1.0 bcde	35.3 ± 1.0 de	29.3 ± 1.1 bc

^*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.