(a) The -axis (log 10) represents the granule size in m

(b)

Figure 3: Starch granule size distribution in developing grain. (a) Column 1—granules as percent of total volume; column 2—as percent of total number. (b) Relative granule proportions in terms of their % number (num.) and % volume (vol.). Starch granules bigger than 10 m in diameter were considered A-granules and granules smaller or equal to 10 m in diameter were considered B-granules, except at 7 DPA when all granules were considered A-granules. For volume calculations all granules bigger than 5 m in diameter were considered oblate spheroid with thickness of 5 m and varying equatorial diameters.