Table 1 The pollen and spikelet fertility of three parents and their F1 hybrids
Parents and crossesFertility of pollen (%)Fertility of spikelet (%)
Ingra94.2 ± 2.095.7 ± 0.8
IR3694.9 ± 2.084.8 ± 5.2
Cpslo1794.8 ± 1.486.1 ± 6.2
Ingra/IR3699.1 ± 0.849.2 ± 0.1***
IR36/Ingra88.2 ± 3.346.8 ± 0.0***
Ingra/Cpslo1789.2 ± 3.559.6 ± 1.1***
Cpslo17/Ingra97.4 ± 0.654.3 ± 0.4***
Ingra/Nipponbare80.8 ± 0.874.4 ± 0.6
Nipponbare/IR3666.8 ± 1.650.9 ± 6.7
Ingra/931199.7 ± 0.350.2 ± 2.3
9311/Cpslo1797.5 ± 1.784.1 ± 6.6
Ingra/Dular98.4 ± 1.687.1 ± 2.0
Cpslo17/Dular97.6 ± 0.886.7 ± 7.6
IR36/Dular97.9 ± 0.592.3 ± 2.4
Ingra/IR2497.6 ± 1.244.4 ± 4.2
Cpslo17/IR2496.4 ± 1.492.4 ± 2.7
IR36/IR2495.1 ± 1.389.9 ± 2.7
Ingra/N2299.0 ± 0.791.9 ± 1.2
Cpslo17/N2299.1 ± 0.387.8 ± 6.8
N22/IR3673.4 ± 3.583.1 ± 3.3
  • *** Statistically significant difference with respect to their parents; P < 0.001.