The effect of removing middle spikelet on set ting kernels was greater, kernels per ear was less, its single grain weight increase compensated partly the loss which resulted from kernels decreasing.

• 去除中部小穗对结实粒数影响较大，穗粒数最少，其穗粒重因剩余籽粒单粒重增加而得到一定程度补偿。