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Table 2 Seedling root traits in the two parental lines and the RIL population

From: Genetic analysis of seedling root traits reveals the association of root trait with other agronomic traits in maize

Root trait Timea Zong3 Yu87–1 Significance RILs h2(%)c
(dag) Mean Mean levelb Mean Range  
PRL (cm) 4 7.80 5.94 ** 8.53 4.89–12.43 87.6
9 15.96 14.94 * 17.55 11.73–22.30 84.2
14 20.40 17.17 ** 21.95 16.82–28.63 75.5
PSC 4 3.07 4.27 ** 4.21 1.83–7.67 88.8
9 5.80 7.73 ** 8.58 3.82–13.67 83.6
14 11.40 12.80 ** 9.75 5.50–14.75 83.1
LRN 4 3.60 4.53 NS 7.51 0.39–17.06 87.8
9 46.87 34.87 ** 60.56 22.04–166.26 89.4
14 123.67 49.67 ** 104.44 41.00–187.75 91.3
RTN 4 6.67 9.00 ** 11.72 3.73–21.6 90.2
9 52.60 42.60 ** 69.14 26.44–174.90 89.9
14 135.07 62.53 ** 114.19 50.6–198.2 91.6
TRL (cm) 4 14.85 14.31 NS 21.56 6.86–37.17 91.3
9 66.20 53.03 ** 90.51 42.16–156.88 91.1
14 178.89 99.86 ** 160.31 76.91–244.25 93.3
RSA (cm2) 4 6.48 5.44 NS 6.08 1.93–11.57 92.9
9 21.08 18.10 * 29.98 11.15–54.31 92.6
14 50.91 31.22 ** 55.14 22.39–91.64 91.9
TRV (cm3) 4 0.29 0.16 ** 0.14 0.04–0.26 89.9
9 0.54 0.42 * 0.81 0.22–1.71 90.6
14 1.12 0.84 ** 1.53 0.52–2.77 87.9
ARD (mm) 4 1.45 1.19 ** 0.90 0.57–1.20 87.9
9 0.98 1.05 * 1.06 0.73–1.38 89.9
14 0.88 1.05 ** 1.08 0.79–1.34 90.2
  1. aThe time-points for seedling root trait evaluation: 4 days after germination (dag), 9 dag, and 14 dag
  2. bThe level of statistical significance of differences between two maize genotypes analyzed by t-test: NS, not significant; *, significant at P < 0.05; **, significant at P < 0.01
  3. cBroad-sense heritability detected