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Phenotypic characterization of fertile and sterile lines. (a,b) Vertical-view of open flowers; (c,d) Side-view of flowers without calyxes and petals; (e,f) Acetocarmine-stained anthers; a, c and e are 7365B; b, d and f are 7365A. The scale bars are 5 mm for a, b, c and d, and 100 μm for e and f.
