Fig. 3 Grouping of racemes for sampling purposes. MS-L, five basal racemes on the main stem; MS-U, additional apical racemes on the main stem; B1-L, five proximal racemes on primary Branches 1 and 2; B1-U, additional apical racemes on the same branches; B2, racemes on Branches 3, 4, etc.; SB, racemes on secondary branches