Fig. 1.

Radish plant morphology. Five-week-old plant (A) and 3-month-old plant that had initiated bolting (B). Flower development is shown in (C). A flower used for bud pollination is indicated by an arrow, and a flower in which the carpels were artificially opened is shown in the inset photograph. A seedpod that was successfully produced by self-crossing via bud pollination (D) and a pistil that failed to be pollinated (E) are shown. A 4-month-old radish plant that flowered is shown in (F).