High-performance liquid chromatographic analysis of anthocyanins in Japanese garden iris and its wild forms

Summary Following bud pollination of tartary buckwheat (Fagopyrum tataricum) with pollens from common buckwheat (F. esculentum), cv. Mancan, 31% of the ovaries began to grow but all turned brown and withered after 6 to 14 days. Fluorescence microscopy of the growing ovaries showed the pollen-tube entering the embryo-sac. The ovules from the growing ovaries failed to produce any embryo in the culture medium in which the immature embryos from the self-pollinated (compatible) tartary flowers were able to mature and germinate. No embryo development was observed after cross-pollination. The interspecific incompatibility is attributed to the failure of gametes to fuse.Abbreviations BAP benzylaminopurine - IAA indoleacetic acid