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FORMATION OF BUCKWHEAT (FAGOPYRUM MILL.) POLYMORPHISM AS RESULT OF INTRODUCTION

FORMATION OF BUCKWHEAT (FAGOPYRUM MILL.) POLYMORPHISM AS RESULT OF INTRODUCTION

Institution

Ustymivka Experimental Station for Plant Production of Plant Production Institute nd. a. V.Ya. Yuryev of NAAS

Section

COLLECTION FORMATION AND USE

Abstract

In the process of buckwheat natural introduction from centres of origin and subsequent cultivation, a wide genetic diversity was formed on morphological, biological and economical traits. In the collection of Ustymivs’ka Experimental Station of Plant Production, during nearly 60 years, more than 2000 buckwheat accessionhs are collected and characterized for a set of traits. Super early ripening forms with vegetation period of up to 65 days are selected. From local populations of mountain localities of China and Nepal, forms with red flowers are selected, on the base of which are created varieties with genetically fixed color of flowers. In the forms with green flowers isolated from buckwheat local populations, the trait of green color is connected with resistance to shattering what is one of important conditions for maintaining crop up to harvest. A number of accessions are characterized by neoteny, limited branching or it absence, short stem, narrow leaves, compact form of the bush, inflorescence in the form of branches, top inflorescence of two or three brushes, elongate lateral inflorescence, club-shaped top inflorescence. The accessions with self-fertility, resistance to lodging, lack of anthocyanin coloration of stems, minor depression at inbreeding etc. are also of practical value. The selected material issource of the trait valuable for breeding for productivity, adaptability etc. According to the evaluations of the gene pool accessions, trait collections are created.

Keywords

buckwheat, genetic resources, introduction, ecological and geographical diversity, trait, collection.