About Buckwheat Variety Trial for Ecological Plasticity

The question of farm crop stability on growing them in different ecological zones lately is of great actuality. Varieties, plastic for cultivation conditions and possess of enough adaptive potential, are in great demand. Long since Ukraine was of one greatest buckwheat sowing countries of the world and now may be exporter of this crop. That is why necessary to have wide range of varieties, plastic for cultivation conditions and with high crop stability. The basic demand for creative varieties of farm crops is productivity, it's stability and quality. During the selection process these demands are under control in different grade. Productivity and quality are under direct control but crop stability in time and space are out of direct control. For its definition it is necessary to conduct wide ecological trial or use corresponding analysing background on final selection stages. Lately appeared many interpretations of such terms as ecological plasticity and stability. On our opinion, the most complete interpretation ofthere terms are in papers of A. Zhuchenko [8]. For clearing up the terminology under conception of ecological plasticity we mean phenotypic reaction of genotype on modification of external condition of cultivation, whic