Table 11.

The mean values of roots dry weight (g plant⁻¹) and roots dry weight (kg ha⁻¹) of lovage plants as affected with plant spacing, melatonin concentrations and their combination treatments in two cuts of both seasons.

Treatments	Roots dr y weight (g plant−1)		Roots dry weight (kg ha−1)
	First season	Second season	First season	Second season
Planting space between plants in row (cm)
15	5.3 ± 0.5 c*	5.5 ± 1.1 c	583 ± 61 b	589 ± 76 b
30	11.4 ± 0.7 b	11.2 ± 0.6 b	633 ± 40 a	623 ± 32 a
45	13.6 ± 0.7 a	13.7 ± 0.4 a	503 ± 28 c	506 ± 16 c
Melatonin concentrations (µM)
Without soaking	9.4 ± 3.7 d	9.5 ± 2.4 c	526 ± 55 d	535 ± 48 c
0	9.8 ± 3.7 c	9.9 ± 2.5 bc	558 ± 56 c	555 ± 58 bc
75	10.9 ± 3.9 a	10.6 ± 1.6 a	624 ± 63 a	621 ± 83 a
100	10.3 ± 3.8 b	10.2 ± 2.1 b	584 ± 71 b	580 ± 58 b
Interaction
T1	4.6 ± 0.2 h	4.7 ± 0.3 e	514 ± 26 fg	522 ± 28 d
T2	5.1 ± 0.2 h	4.8 ± 0.4 e	564 ± 20 de	538 ± 4 5 d
T3	6.0 ± 0.2 g	6.3 ± 0.5 d	661 ± 24 ab	702 ± 50 a
T4	5.3 ± 0.4 gh	5.4 ± 0.2 e	593 ± 41 cd	596 ± 23 c
T5	10.6 ± 0.5 f	10.6 ± 0.7 c	591 ± 27 cd	589 ± 38 c
T6	11.1 ± 0.4 ef	11.2 ± 0.6 bc	617 ± 20 bc	624 ± 32 bc
T7	12.0 ± 0.3 d	11.6 ± 0.3 b	669 ± 14 a	643 ± 14 b
T8	11.8 ± 0.7 de	11.4 ± 0.4 b	656 ± 39 ab	635 ± 22 bc
T9	12.8 ± 0.3 c	13.3 ± 0.0 a	473 ± 13 g	493 ± 0 d
T10	13.3 ± 0.3 bc	13.6 ± 0.4 a	493 ± 13 g	505 ± 15 d
T11	14.6 ± 0.3 a	14.0 ± 0.6 a	542 ± 10 ef	519 ± 23 d
T12	13.6 ± 0.2 b	13.7 ± 0.2 a	504 ± 8 fg	509 ± 8 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.