Figure 4.

Spatial distribution of density within kernels by X‐ray CT. WTR is wild‐type rice; HAR is high‐amylose rice (Zhu et al., 2012). The instruments are SEM with an accelerating voltage of 30 kV and a high‐resolution X‐ray CT system with operating voltage of 46 kV and current of 75 μA. The amount of void was the least near the tip part of the WTR grain and varied throughout grain. Within the HAR grain, the part near the tip also had the least amount of void, but no difference was found in other parts of the grain