Fig. 4 Distribution of mature seeds at various raceme postions in two buckwheat genotypes during the ripening season. Areas represent basal racemes on main stem (MS-L), apical racemes on main stem (MS-U), proximal racemes on upper primary branches (B1-L), distal racemes on upper primary branches (B1-U), racemes on lower primary branches (B2), and racemes on secondary branches (SB). See also Fig. 3. SB for Kitawasesoba and MS-U and B1-U for Kitawase D are absent since no mature seeds were observed in Kitawasesoba and none of Kitawase D plants bore more than five racemes on the main stem or branches