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Table 1 Phenotypic variations of the five traits

From: Unravelling the complex trait of harvest index in rapeseed (Brassica napus L.) with association mapping

Trait Env. Mean Ậ ± SD Range Skew Kurt CV%
PH E1 * * * * *
  E2 * * * * *
  E3 125.87 ± 0.788 97.00–156.70 −0.03 0.33 11.17
  E4 128.77 ± 0.956 93.71–155.89 −0.48 0.39 12.41
BN E1 6.91 ± 0.081 4.40–9.25 0.07 −0.31 16.78
  E2 6.15 ± 0.072 4.49–8.90 0.70 0.27 16.61
  E3 4.42 ± 0.083 4.20–7.80 0.10 0.48 24.28
  E4 7.56 ± 0.106 4.46–12.05 0.31 0.56 19.44
BY E1 43.53 ± 0.943 21.63–71.74 0.38 −0.38 26.45
  E2 29.79 ± 0.642 15.86–77.86 1.77 8.38 26.35
  E3 46.54 ± 0.725 22.00–71.50 0.34 −0.07 19.01
  E4 41.03 ± 0.888 16.34–78.04 0.48 0.53 26.41
SY E1 9.68 ± 0.265 4.11–18.11 0.34 −0.54 33.39
  E2 8.09 ± 0.179 4.12–19.47 1.08 1.82 26.95
  E3 9.67 ± 0.251 4.85–20.79 1.03 1.31 34.90
  E4 9.84 ± 0.236 4.38–18.16 0.44 −0.15 29.24
HI E1 0.22 ± 0.003 0.15–0.33 0.43 −0.29 17.18
  E2 0.27 ± 0.003 0.17–0.34 −0.55 0.33 11.54
  E3 0.20 ± 0.004 0.15–0.36 1.32 2.94 20.06
  E4 0.24 ± 0.002 0.19–0.30 0.06 −0.38 9.71
  1. Trait: PH plant height, BN branch number, BY biomass yield per plant, SY seed yield per plant, HI harvest index.
  2. Env: E1 Huanggang in 2011, E2 Xiangyang in 2011, E3 Wuhan in 2012, E4 Xiangyang in 2012.
  3. SD: standard deviation. CV(%): coefficient of variation.
  4. *: data not collected.