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. 2021 Dec 23;29(4):2656–2673. doi: 10.1016/j.sjbs.2021.12.048

Table 17.

The mean values of yield of essential oil (l ha−1) of lovage plants as affected with plant spacing, melatonin concentrations and their combination treatments in two cuts of both seasons.

Treatments First season
Second season
1st cut 2nd cut 1st cut 2nd cut
Planting space between plants in row (cm)
15 4.91 ± 0.39 b* 4.92 ± 0.58 b 4.87 ± 0.53 b 6.49 ± 0.62 b
30 5.61 ± 0.45 a 7.52 ± 1.12 a 6.30 ± 0.48 a 7.87 ± 0.77 a
45 3.28 ± 0.21 c 4.11 ± 0.45 c 3.51 ± 0.26 c 4.62 ± 0.43 c



Melatonin concentrations (µM)
Without soaking 3.69 ± 0.29 c 3.56 ± 0.37 c 3.70 ± 0.39 c 4.22 ± 0.35 d
0 4.46 ± 0.52 b 6.42 ± 1.56 a 4.69 ± 0.54 b 6.25 ± 0.76 c
75 5.66 ± 0.55 a 6.50 ± 0.39 a 6.26 ± 0.63 a 7.84 ± 0.69 a
100 4.58 ± 0.49 b 5.59 ± 0.56 b 4.92 ± 0.57 b 6.99 ± 0.64 b
Interaction
T1 3.84 ± 0.19 fg 3.11 ± 0.20 fg 3.28 ± 0.46 d 4.40 ± 0.75 gh
T2 4.97 ± 0.61 de 4.36 ± 0.20 e 4.88 ± 0.20 c 6.37 ± 0.10 d
T3 6.12 ± 0.42 b 6.02 ± 0.27 c 6.59 ± 0.46 b 8.08 ± 0.51 b
T4 4.69 ± 0.32 e 6.21 ± 0.85 c 4.74 ± 0.35 c 7.12 ± 0.30 c
T5 4.34 ± 0.32 ef 4.64 ± 0.41 de 4.87 ± 0.21 c 4.97 ± 0.11 fg
T6 5.38 ± 0.98 cd 11.36 ± 1.06 a 6.02 ± 0.67 b 8.25 ± 0.34 b
T7 6.87 ± 0.20 a 7.56 ± 0.44 b 7.76 ± 0.38 a 9.57 ± 0.36 a
T8 5.84 ± 0.35 bc 6.51 ± 0.99 bc 6.56 ± 0.05 b 8.67 ± 0.34 b
T9 2.88 ± 0.25 h 2.94 ± 0.45 g 2.96 ± 0.06 d 3.30 ± 0.29 i
T10 3.03 ± 0.24 h 3.74 ± 0.21 efg 3.18 ± 0.33 d 4.13 ± 0.04 h
T11 3.99 ± 0.32 f 5.69 ± 0.39 cd 4.44 ± 0.25 c 5.86 ± 0.15 de
T12 3.21 ± 0.12 gh 4.06 ± 0.16 ef 3.45 ± 0.06 d 5.19 ± 0.03 ef
*

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.