Features of the preservation of rye genotypes in model conditions

Abstract

Aim. The aim of the work was to establish the impact of rye seed storage in model conditions at seed moisture content of 5–7 % on germination indicators, productivity elements and plant height. Methods. The material for the research were seeds of rye accessions of different genotypes. The seeds used in the experiment were grown in the experimental fields of the Institute of Plant Production naned after V. Ya. Yuriev of NAAS (PPI), located in the northern forest-steppe of Ukraine. Laboratory germination was assessed according to the International Seed Testing Associations. Seeds after storage were sown in the experimental field of PPI during the growing seasons 2015/2016, 2016/2017, 2017/2018 in order to assess the elements of plant productivity. Indicators of temperature and precipitation of the period of seed growing have been recorded. Statistical processing of the obtained data was performed by standard methods using Excel. Results. It was found that after 12 months of storage of seeds of different genotypes in model conditions, significant changes in germination were observed only in isolated cases. After storing the seeds for 18 months, a significant reduction in germination was observed for all samples. Conclusions. Seeds of rye accessions with different genotypes in model conditions have different longevity. No significant benefits of seed moisture in the range of 5–7 % for its longevity. No significant stable impact of model storage conditions of experimental accessions of rye on plant height and elements of the structure of productivity in the year of research.