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Table 1 Mean squares from the combined analyses of variance in the RILs under four environments and the IF2 population across three environments

From: Genetic dissection of yield-related traits and mid-parent heterosis for those traits in maize (Zea mays L.)

Traita Population Genb Envb Rep (Env)b Gen × Envb h2 (%)c C. I (%)d
EWPE RIL 1059.24** 472,851.69** 0.04 397.37** 62.5 55.6–68.2
IF2 2055.73** 1,080,285.18** 24.60** 445.28** 78.3 74.2–81.7
CWPE RIL 65.39** 6542.52** 57.93** 17.89** 72.6 67.6–76.8
IF2 62.46** 8119.14** 25.87** 14.63** 76.6 72.2–80.2
EL RIL 18.86** 293.57** 0.17 2.65** 85.9 83.5–87.9
IF2 9.66** 959.04** 6.97** 1.33** 86.2 83.6–88.3
ED RIL 41.48** 5547.70** 0.08** 11.97** 71.1 66.2–75.2
IF2 23.54** 5304.38** 8.90** 6.01 74.5 69.7–78.4
CD RIL 26.37** 4715.00** 7.81 7.55** 71.3 66.4–75.4
IF2 14.27** 461.95** 1.6 4.7 67.1 60.9–72.1
RN RIL 9.73** 63.01** 0.15 0.87** 91.1 89.5–92.3
IF2 5.40** 74.82** 0.1 0.5** 90.8 89.1–92.2
KNPR RIL 103.85** 16,419.65** 8.330 28.42** 72.6 67.6–76.8
IF2 73.69** 12,860.29** 1.89 19.65** 73.3 68.3–77.4
KWPE RIL 740.61** 195,608.04** 152.290 290.12** 60.8 53.9–66.5
IF2 1429.09** 833,331.84** 28.24** 315.94** 77.9 73.8–81.3
RKP RIL 0.05** 2.62** 0.00 0.01** 77.7 73.8–80.9
IF2 0.00** 0.54** 0.68 0.00** 71.3 66.0–75.7
  1. aEWPE Ear weight per ear, CWPE Cob weight per ear, EL Ear length, ED Ear diameter, CD Cob diameter, RN Row number, KNPR Kernel number per ear, KWPE Kernel weight per ear, RKP the ratio of kernel production
  2. bGen Genotype, Env Environment, Rep (Env) Replication nested within the environment, Gen × Env Genotype × environment interaction
  3. ch2 Broad-sense heritability
  4. dC. I the confidence interval of broad-sense heritability
  5. *Significant at p < 0.05 and ** significant at p < 0.01