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SPRING DURUM WHEAT TRAIT COLLECTION BY A SET OF VALUABLE ECONOMIC FEATURES – A SOURCE OF STARTING MATERIAL FOR BREEDING

SPRING DURUM WHEAT TRAIT COLLECTION BY A SET OF VALUABLE ECONOMIC FEATURES – A SOURCE OF STARTING MATERIAL FOR BREEDING

Institution

Plant Production Institute nd. a VYa Yuriev

Section

SOURCES AND DONORS

Abstract

The National Center for Plant Genetic Resources created passport database for spring durum wheat, which contains information on 1,266 accessions of different eco-geographical origin. Based on multiyear studies of spring durum wheat accessions, a trait collection was formed in terms of a set of valuable economic traits. The collection is of practical value for modern breeding, includes 108 accessions originating from 11 countries and is differentiated by expression levels of 10 traits. Forty references reflecting various expression levels of traits were chosen. The trait collection includes accessions that are valuable starting material for breeding: Naschadok (UKR) - large grain weight per spike (1.8-2.5 g) and high resistance to powdery mildew (7-8 points); Spadschyna (UKR) - spike length (6.1-8.0 cm), medium grain weight per spike (1.2-1.7 g) and late ripening (90-92 days); Daryna (UKR) – medium ripening (85-89 days) and medium yield capacity (210-300 g/m2); Dynastiia (UKR) – early ripening (79-84 days) and medium height (81-110 cm); Slavuta (UKR) – great grain number per spike (31-45) and very high resistance to powdery mildew (9 points). The trait collection is of significant value for scientific and educational programs, and use of collection accessions will enhance the effectiveness of the breeding process on creating high-yielding and adapted to changing cultivation conditions varieties.

Keywords

spring durum wheat, accession, trait collection, reference, expression llevel, yield, capacity, ripeness