The characters of SP1 variation plants at maturity stage also appeared big changes.SP1 variation plants had short growing period, high seed setting rate, loose plant-type and clavated spike-type.
成熟期SP1代变异也有较大变化,表
生育期显著缩短,结实
有所提高,
型向松散趋势发展,穗型则均表
棒形,
高、穗粒数和千粒重的变化品种间表
不一致。