plastid mutation

The fractal model which mutation plastids divide, transmit and distributewith cell divisions is established.

建立了突变质体随细胞分裂而分裂、传递和随机分布的分形模型，计算了某些分配情况下分布的分维，讨论了它们的生物学含义。

The homogeneous mutants of root skin color and the m.

结果表明，辐照后代在叶形、叶色、薯皮色、薯肉色、干物率及食味等性状上发生了明显变异，获得了薯皮色同质突变体和一批干物率高或者食味优的突变