Skip to main content

Table 1 Mean response to Puccinia striiformis f. sp. tritici infection, estimates of variance components and heritability

From: Characterization of molecular diversity and genome-wide mapping of loci associated with resistance to stripe rust and stem rust in Ethiopian bread wheat accessions

Parameter

Pullman

Mount Vernon

Ethiopia

Across locations

IT (0–9)

Severity (%)

IT (0–9)

Severity (%)

IT (0–9)

IT (0–9)

Severity (%)

Minimum

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Mean

4.2

41.0

4.2

43.0

4.8

4.4

42.0

Maximum

9.0

100.0

9.0

100.0

9.0

0.0

100.0

σ2 G

2.7***

360.0****

4.5***

612.0****

4.1***

2.9***

451.2****

σ2 E

0.9ns

141.0ns

0.1ns

4.4ns

0.1ns

0.3ns

48.1

σ2 GXE

0.1ns

117.0***

0.0

90.9**

0.3*

0.2*

136.9***

σ2 error

1.0

1.0

0.7***

1.0

1.0

1.8

1.0

Heritability

0.73

0.74

0.92

0.93

0.85

0.89

0.91

  1. \( {\sigma}_G^2 \) = estimate of genotypic variance
  2. \( {\sigma}_E^2 \) = estimate of environmental variance
  3. \( {\sigma}_{GE}^2 \) = estimate of genotype x environment variance
  4. \( {\sigma}_e^2 \) = estimate of residual variance; H 2 = heritability
  5. IT infection type; DS disease severity; ns not significant
  6. *P < 0.05
  7. **P < 0.01
  8. ***P < 0.001
  9. ****P < 0.0001