Morphobiological features of some forms of Fagopyrum ( Polygonaceae) introduced in the Primorskii krai

The Fagopyrum Mill. species are well known as a perspective source of rutine. That is why their introduction in Primorsky Krai (Russia) as a row material for pharmaceutical industry, as well as the donors in breeding for drought, heat, cold, lodging hardiness, resistance to diseases, high rutin content, and high seed production, and also in programs for maintenance of gene diversity is extremely important. Using 30 plants of each of 10 Fagopyrum samples of different origin grown at collection nursery, we estimated their morphological characteristics at fruiting, i.e. plant height, the number of nodes on the main stem, the number of primary branches, and the number of inflorescences with buckwheat nuts. At mass-flowering, row and dry weight of aboveground parts were also assessed. By morphobiological study of three Fagopyrum species in Primirsky Krai, the samples are indicated with combination of valuable traits which can be used in breeding programs. The noted samples are F. tataricum (к-62 from Canada, к-84 from Nepal), F. cymosum (к-4231 from India).