Aiman Rysbekova1, Elmira Dyussibayeva1, Irina Zhirnova1, Aiym Zhakenova1, Abilbashar Seitkhozhayev1, Carina Makhmudova2, Svetla Yancheva3, Nursaule Zhanbyrshina1, Gulden Kipshakbayeva1
1 S. Seifullin Kazakh Agro-Technical University, Agronomic Faculty, Department of Agriculture and Plant Growing, 010011 Nur-Sultan, Republic of Kazakhstan
2 Knowledge Partners Limited Liability Partnership (LLP), 050059 Almaty, Republic of Kazakhstan
3 Agricultural University – Plovdiv, 4000 Plovdiv, Bulgaria
Rysbekova, A., Dyussibayeva, E., Zhirnova, I., Zhakenova, A., Seitkhozhayev, A., Makhmudova, C., Yancheva, S., Zhanbyrshina, N., & Kipshakbayeva, G. (2019). Evaluation of salt toleranceof Panicum miliaceum L. collection at the germination stage in conditions of induced sodium chloride salinization. Bulgarian Journal of Agricultural Science, 25(5), 986–993
Present work evaluates the salt tolerance of 29 domestic and foreign samples of millet (Panicum miliaceum L.) for identification of valuable genotypes for further use in the breeding programs. The study aimed to estimate the salt tolerance by screening the collection of millet samples at the germination stage of ontogenesis based on the changes of morphometric indicators for forecasting the reaction of genotypes to salinization. The salt stress inhibited the growth of sprouts and roots of millet samples. Unequal effect of salt stress onto the length of sprouts and roots of seedlings was noted. The samples Aktyubinskoye kormovoye, K-9681, Shortandinskoye-10, and Yarkoye-7 demonstrated an insignificant decrease of sprouts length in comparison with the control. The cultivar Saratovskoye-6 (standard) showed about a 50% decrease of sprouts length at 75 and 100 mm of NaCl, and to 70% decrease at 150 mm of NaCl. At all salinity concentrations, the smallest length of germinal roots of 7-day seedlings was noted at samples Yarkoye-5 and Pavlodarskoye and the greatest length of sprouts at samples K-9681, Yarkoye-5, Pavlodarskoye, Shortandinskoye-10 and Aktyubinskoye kormovoye.