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ІNFLUENCE OF DIFFERENT STORAGE CONDITIONS ОN RYE (SECALE CEREALE L.) SEED GERMINATION AND ANTIOXIDANT ACTIVITY

ІNFLUENCE OF DIFFERENT STORAGE CONDITIONS ОN RYE (SECALE CEREALE L.) SEED GERMINATION AND ANTIOXIDANT ACTIVITY

Institution

Plant Production Institute nd. a. V.Ya. Yuriev of NAAS

Section

Plant genetic resources conservation

Abstract

The influence of different storage conditions on rye (Secale cereale L.) seed germination and antioxidant activity was investigated. Rye seeds of two lines and hybrid Kharkivianka were stored under model conditions of accelerated aging, at unregulated temperature in the depository, at 4oC, and at minus 20oC for 24 months. Pre-storage treatment involved dryingseeds at 25°C to 5, 6, and 7 %.moisture content. Samples were monitored for the seed germination, seedling length, and antioxidant activity in seeds. The results indicate for seed storage at minus 20oC optimum moisture content 5 %, at 4oC – 6-7 %, at unregulatedtemperature – 6 %. Rye seed storage under accelerated aging for four months resulted seed germination increasing in comparison with the initial at all moisture content levels. Further storage to 24 months resulted to germination decreasing. There are no clear differences for rye seed germination of one genotype for seed storage with the seed moisture of 5 % and 6 %. Modes storage and seed moisture affecting its germination, have little impact on morphometric parameters of seedlings. This may be due by the selective influence of these factors on seeds. There was no relationship between antioxidant activity, indexes of seed germination and morphometric parameters of seedlings at the investigated seed moisture content levels.

Keywords

rye, seeds, storage, temperature, moisture, germination, antioxidants, line, hybrid