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. 2019 Aug 20;8(8):293. doi: 10.3390/plants8080293

Table 2.

Mean values of onion growth indices as affected by bulb planting time and density (n = 3 ± SD).

Source of Variance Leaf Area (cm2 Per Plant) Leaf Area Index (LAI) (m2·m−2) Dry Weight (g Per Plant) Dry Weight (g Per m2)
Year (Y)
2014 852.1 ± 12.3 0.27 ± 0.004 65.4 ± 0.49 203.3 ± 2.72
2015 888.0 ± 3.4 0.28 ± 0.002 68.3 ± 0.79 212.2 ± 2.87
n.s. n.s. n.s. n.s.
Planting time (Pt)
20 December 1517.5 ± 23.2 a 0.48 ± 0.008 a 93.3 ± 1.54 a 293.3 ± 5.65 a
10 January 748.0 ± 13.1 b 0.24 ± 0.004 b 89.5 ± 1.26 a 279.7 ± 5.96 a
31 January 664.4 ± 11.5 b 0.21 ± 0.004 b 54.1 ± 0.82 b 166.9 ± 2.91 b
21 February 552.1 ± 24.3 c 0.17 ± 0.007 c 30.7 ± 1.51 c 91.6 ± 4.48 c
Bulb density per m2 (Bd)
2.0 935.3 ± 8.2 a 0.19 ± 0.002 d 73.8 ± 0.75 a 147.6 ± 1.51 d
2.5 869.7 ± 11.6 a,b 0.22 ± 0.003 c 71.7 ± 0.93 a 179.3 ± 2.32 c
3.3 838.3 ± 10.2 b 0.28 ± 0.003 b 62.5 ± 0.92 b 206.3 ± 4.01 b
5.0 838.8 ± 13.0 b 0.42 ± 0.007 a 59.6 ± 1.07 b 298.0 ± 5.33 a
Y × Pt n.s. n.s. n.s. n.s.
Y × Bd n.s. n.s. n.s. n.s.
Pt × Bd n.s. n.s. n.s. n.s.
Y × Pt × Bd n.s. n.s. n.s. n.s.

Within each column, n.s. = no statistically significant difference; means followed by different letters are significantly different according to the Duncan test at p ≤ 0.05. Mean values ± standard deviations have been reported for the main effects of the experimental factors.