Rapid viscosity analyses of cooked rice provided
further evidence for the improvement of cooking and
eating quality of the new hybrid XY57(TT). As
compared to the original hybrid XY57(GG) and the
single parent improved combination XY57(GT) and
XY57(TG), the new hybrid XY57(TT) from double
improved parents exhibited higher peak viscosity,
higher breakdown value, lower recovery value and
lower decline value (Table 4), all of which are
changes indicative of better cooking and eating
quality. Whereas, these quality indicators of the
original hybrid were at the opposite end of the
spectrum, the heterozygous hybrids XY57(TG) and
XY57(GT) fell between as expected.