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. 2019 May 16;10:596. doi: 10.3389/fpls.2019.00596

Table 2.

Estimates of variance components and heritability of IT and DS of stripe rust at adult-plant stage for the 152 Chinese Yellow and Huai River Valleys Wheat Zone landraces in five environments.

Parameter Chongzhou
 Mianyang
 Across environments
IT (0–4) DS (%) IT (0–4) DS (%) IT (0–4) DS (%)
Minimum 0 0 0 0 0 0
Maximum 4     100 4     100 4     100
Mean          2.45       41.46          2.09       22.22          2.30       33.76
σ2G          1.13**     745.86**          1.39**     413.08**          1.14**     536.22**
σ2E –     119.40** – –          0.06**     211.66**
σ2G×E –     465.34** – –          0.24**     390.54**
σ2e          0.72**          2.24**          0.73**          2.44**          0.71**          1.78**
H2          0.83          0.81          0.79          0.77          0.81          0.86

σ2G, estimate of genotypic variance; σ2E, estimate of environmental variance; σ2G×E, estimate of genotype × environment variance; σ2e, estimate of residual variance; H2, broad-sense heritability; IT, infection type; DS, disease severity; –, not significant; ∗P < 0.05, ∗∗P < 0.01.