Table 1.
Seven populations (392 F4 : 6 lines) derived from new PI resistance sources and their reactions to soybean white mold (SWM) based on mean plant mortality from two greenhouse evaluation methods (spray-mycelium and drop-mycelium).
| Population | Female parent | Male parent | Number of lines | Plant mortality | σ2 G ± SEd | h2 ± SEe |
|---|---|---|---|---|---|---|
| 1 | E00290a (73.0) | PI 89001 | 59 | 45.7 | 137.2 ± 41.5 | 0.64 ± 0.21 |
| 2 | E00290 | PI 437764 (57.5) | 50 | 45.4 | 176.5 ± 61.8 | 0.66 ± 0.22 |
| 3 | E00290 | PI 548312c (24.6) | 63 | 63.5 | 59.5 ± 29.4 | 0.39 ± 0.19 |
| 4 | Skyllab | PI 89001c | 62 | 48.8 | 137.2 ± 50.8 | 0.52 ± 0.19 |
| 5 | Skylla (30.0) | PI 153259c (62.0) | 51 | 40.7 | 62.3 ± 37.2* | |
| 6 | Skylla | PI 437764c | 38 | 48.6 | 72.2 ± 47.0* | |
| 7 | Skylla | PI 548404c (61.0) | 69 | 29.0 | 45.8 ± 33.3* |
In parentheses are mean plant mortality for parents.
a
Susceptible to soybean white mold (SWM).
b
Carries resistance to soybean white mold (SWM) from NKS19-90.
c
Partially resistant to soybean white mold (SWM) (Hoffman et al., 2002).
d
Estimates of genotypic variance ±standard errors.
e
Estimates of broad-sense heritability ±standard errors.
*
Non-significant estimates of genotypic variance.