Influence of NaCl concentrations on the seed germination and the seedling parameters in introduced rice varieties (Oryza sativa L.)

Gergana Desheva, Svilena Tosheva

Abstract: The aim of the present study was to determine and to compare the inhibitory effect of increasing sodium chloride concentrations on seed germination and seedling characteristics in rice. The study was conducted with five introduced varieties in 2020 in the laboratory for seed control and seed quality at the National Gene Bank of IRGR-Sadovo. Increasing the salinity concentration from 50 to 300 mM NaCl prolonged the mean germination time and had a suppressive effect on the growth of shoots and roots. Relatively the most tolerant to salinity in terms of seed germination was the Gala variety, followed by Osmanchik 97, and in terms of seedling growth was the CL 34 variety.

Keywords: germination; rice (Oryza sativa L.); root; salinity tolerance; shoot

Date published: 2021-12-08