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GEOGRAPHICAL AND BOTANICAL STRUCTURE AND BREEDING VALUABILITY OF CORN COLLECTION OF THE USTYMIVKA EXPERIMENTAL STATION OF PLANT PRODUCTION

GEOGRAPHICAL AND BOTANICAL STRUCTURE AND BREEDING VALUABILITY OF CORN COLLECTION OF THE USTYMIVKA EXPERIMENTAL STATION OF PLANT PRODUCTION

Institution

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

Section

COLLECTION FORMATION AND USE

Abstract

The article discusses the importance of preserving the genetic diversity of maize for the current and future breeding. The distribution of collection samples on geographic and botanical composition has. The collection features designs from 5 continents and 40 countries. It includes samples from Ukraine - 917 samples, Russia - 186 Moldova - 138, Spanish - 115, USA - 135, Canada - 62, Germany - 70 and other countries. Of collection of inbred lines in 1113, 568 - local varieties, 288 - selection varieties, 67 - and 14 synthetic populations - genetic lines. The necessity of the involvement of wild relatives (teosinte, coix) collection and breeding work. Covered a significant contribution researchers of Ustymivs'ka Experimental Station of crop production in study of prospective source material based on distant hybridization of corn with teosinte, as well as in the development and refinement of the method of growing teosinte in short-day conditions. The composition and economically valuable characters of crop production corn samples of different geographical origin which sre available in the collection of Ustymivs'ka Experimental Station were analyzed. Valuable patterns creation of new corn forms in different directions is recommended. To improve the efficiency of breeding it should continueto further search of valuable source material by the introduction of genepool corn to find the parent forms a new generation of hybrids.

Keywords

collection of maize, genetic resources, conservation, reproduction, learning, local varieties, selecting varieties, self-pollinated lines