Abstract
The article presents results of screening of soybean collection accessions of the National Center for Plant Genetic Resources of Ukraine for protein and fat contents in seeds.The aim and tasks of the study. Investigation of polymorphism of soybean collection accessions by protein and fat contents in seeds. Identification of valuable sources for breeding programs aimed at improving biochemical composition of seeds of soybean varieties.Material and methods. The study material was 524 soybean collection accessions. The study was carried out in three-year cycles. The accessions were grown in the field in the collection nursery. Seeds were analyzed for protein and fat contents by conventional techniques.Results and discussion. On the basis of protein and fat contents in seeds of collection accessions, a significant polymorphisms was established. Depending on genotype and geographical origin of accessions, a wide range of variability was observed: for protein content in seeds - from 25.54% to 43.55% and for fat content - from 16.39% to 26.90%. We did not find a close correlation between fat and protein contents in seeds and ripeness group. Within each ripeness group, there are accessions both with low and high contents of these compounds.Conclusions. The wide variation in protein and fat contents in soybean seeds of the collection accessions of the National Centre for Plant Genetic Resources of Ukraine opens great possibilities to use these accessions as starting material for creation of new varieties for different purposes. Valuable sources with high fat and protein contents in seeds and stable expression of these traits, which will contribute to raising the breeding efficiency in this direction.
Highlights
The article describes the efficiency of creation of new starting material for breeding of cultivars, hybrids and their parental components in connection with the necessity for intensification of rye grain production for the society‟s needs and food security of Ukraine.The aim and tasks of the study
The survey proved that the modern trends in winter rye breeding enabled obtaining new starting material for breeding cultivars and hybrids with a set of economically valuable traits
Winter rye hybrids are plants of a new type, which were created on the basis of sterile and fertile lines with a high combination capacity
Summary
The article describes the efficiency of creation of new starting material for breeding of cultivars, hybrids and their parental components in connection with the necessity for intensification of rye grain production for the society‟s needs and food security of Ukraine. The survey proved that the modern trends in winter rye breeding enabled obtaining new starting material for breeding cultivars and hybrids with a set of economically valuable traits. Implementation of winter rye hybrids in production will stabilize the rye grain market in Ukraine and provide science-based norms of rye bread consumption
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