Seed storage of rye (Secale cerealе L.) in depositary at unregulated temperature

Abstract

Aim. Impact determination of rye seeds storage with 5-7% moisture content at unregulated temperature under eastern forest-steppe of Ukraine conditions on germination, productivity elements and plant height.] Results and Discussion. Results analysis caried on of rye seed storage of simple hybrid and two breeding lines of Institute of Plant Industry named after V. Ya. Yuriev of NAAS. These accessions stored in the depository at unregulated temperature under conditions of eastern forest-steppe of Ukraine with seed moisture content at 5-7% for 42 months. Average temperature in the depository where these studies were carried out was 9°C. There was no advantages were found for rye seeds longevity with different moisture levels within 5-7%. Analysis of yield components and plant height did not reveal a significant negative impact of the storage regimes used on these traits during the specified period. Significant correlation was found for individual accessions between field germination of seed and the level of precipitation in the month of sowing year; between plant height, productivity and precipitation during the development critical phases of season growing. Conclusion. Possibility of maintaining the initial germination of rye seeds for 42 months without significant changes was established. Seed with moisture content 5-7% of certain genotypes should storage at unregulated temperature under conditions of eastern forest-steppe of Ukraine in sealed container. Consequence of such storage conditions for rye seeds is the absence of significant variation of productivity elements.