Chalkiness is a major concern in rice breeding because it is one of the key factors in determining
quality and price. The chalky endosperm consists of loosely packed, round and large compound
starch granules while the translucent endosperm comprises tightly packed, polyhedral
and small single starch granules. The chalky grains show significantly different physicochemical,
morphological, thermal, cooking and textural properties from translucent grains. Percentage
of grains with chalkiness (PGWC) is one of the main indices of rice-determining
appearance quality, which is easily determined