short-period

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SP1代变异株性状也有较大变化，表现为显著缩短，结实率有所提，株型向松趋势发展，型则均表现为棍棒形，株、数和千重的变化品种间表现不一致。