Table 6. Summary statistics of selected and unselected populations for grain yield from two introgression populations of rice.
|
Population |
Grain yield (g/plant) in year 2012 |
Grain yield (g/plant) in year 2013 |
|||||
|---|---|---|---|---|---|---|---|
| Cross | Size (N) | Mean | Variance | Range | Mean | Variance | Range |
| JG88/MR77 | 60a | 21.3 | 25.9 | 9.7~33.4 | 24.6 | 22.2 | 14.4~32.8 |
| 30b | 23.8 | 12.9 | 15.6~30.4 | 24.8 | 13.7 | 17.5~32.1 | |
| 21c | 25.2 | 7.3 | 20.6~30.4 | 26.4 | 8.5 | 22.2~32.1 | |
| JG88/SN265 | 60a | 23.1 | 31.8 | 10.4~39.1 | 27.8 | 25.1 | 16.1~35.4 |
| 38b | 24.7 | 17.0 | 15.1~34.4 | 27.5 | 17.2 | 16.5~37.2 | |
| 26c | 26.4 | 11.1 | 20.4~34.4 | 28.4 | 11.0 | 22.5~37.2 | |
| JG88 (CK) | 10 | 21.2 | 5.4 | 18.2~26.4 | 24.5 | 8.1 | 20.2~29.6 |
a
Population size: the number of BC2F4 lines from the random (unselected) population.
b
Population size: the number of BC2F3 lines selected for high yield.
c
Population size: the number of BC2F4 lines with higher yield than the JG88 parent based on progeny testing.