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.