As the market demand on functionality rice has been increasing, embryo rice in which embryo residue remains evenafter milling has come to comsumers\' attention because rice embryo contains several functionality components. Consequently,development of rice varieties for higher rate of embryo adhesion to grains after milling has become one of the breeding
objective
sfor quality improvement. In this study, we observed embryo dent of 49 commercial varieties and analyzed the relationshipbetween embryo dent and grain size and shape. Embryo dent of rice grains varied 0.27 (Keunnun)~0.59 (Daerip 1) mm. VarietiesJinbu, Jinbo, Heugseol, Obong, Unkwang, and Cheongnam showed relatively deeper embryo dent, suggesting that they will beapplicable in breeding for embryo rice. Embryo dent was correlated positively with grain width (r=0.53**) and grain size(r=0.34*), and negatively with grain width/length ratio (r= -0.38**). Strategies for breeding embryo rice were discussed in relationto embryo dent, grain size and shape.
