Study of the national rice collection for economically valuable characterisitcs in the south of Ukraine

Abstract

The aim was to form and study a national rice collection, identifying accessions by economically valuable traits for further use in breeding. Results and Discussion. The results of the national rice collection allowed for identification of sources of economically valuable traits: growing period, yield, plant height, panicle performance, vitreousness, stress crack, total output of groats and whole kernels, disease resistance (blast disease), etc. Of the studied accessions, valuable for breeding varieties and lines were selected as sources of individual valuable traits (UIR 3095, Marzhan, UIR 8493, Viаlone Nano, Pashali, Aral 202, Egyption gasmine, Cheope). The UIR 3095-14 line received a registration certificate for a plant gene pool accession in Ukraine. Having studied the collection and having distinguished reference varieties and sources of economically valuable traits, we built up a trait collection of rice by technological characteristics of rice grain and registered it with the National Center for Plant Genetic Resources of Ukraine based (Certificate No. 293 dated 11.05.2020) Conclusions. For effective breeding work, constant studies of the national rice collection are conducted. Varieties and lines – sources of valuable traits have been identified; their inclusion in breeding in the future will make it possible to obtain varieties that maximally combine several economically valuable traits in one genotype.