Studies of Salix Species Reactions to Saline Solutions Exposure
Scientific Agronomy Journal. 2023. 1(120). pp. 58-64
Agroforestry melioration
UDK 630.181. 351/ 631.53/ 635.9
DOI: 10.34736/FNC.2023.120.1.009.58-64
Anastasia A. Vergunova, e-mail: aelestel@mail.ru, ORCID: 0000-0002-0200-4721
Иван Николаевич БабухинORCID: 0000-0002-0778-8609
Olga B. Sokolskaya,Dr. Sci. (Agr.), e-mail: sokolskaya.olg@yandex.ru, ORCID: 0000-0003-1723-1289
Saratov State University of Genetics, Biotechnology and Engineering named after N.I. Vavilov 410012, street Soviet, 60, Saratov, Russia
Abstract.In saline soils conditions, the salt resistance of green plantings is important. Trees and shrubs species have different features of survival under salt exposure to them. Identification of the most salt-resistant of them is relevant and necessary. The novelty of the study: the possibility of Salix species growing in conditions of soil salinization has been revealed, which is of practical importance both for the territories of the Left Bank and some sections of the Right Bank of the Saratov region. The tests were carried out in the period 2020-2022. The article compares the results of seed germination, root outflow of Na+ and K+ and changes in the leaves of two willow speciesSalix matsudana Koidz. and Salix ledebouriana var. pyramidaliswith salt exposure. A comparative analysis of the NaCl solutions of different concentrations effects was applied Salix ledebouriana var. pyramidalis showed a higher rate of seed germination and outflow of Na+ from the roots of seedlings than Salix matsudana Koidz. with salt exposure to them. It was found that when processing 200 mM NaCl seeds of S. ledebouriana var. Pyramidalis had a germination rate of 23%, while the seeds of S. matsudana Koidzdid not germinated. Nevertheless, under untreated control conditions, both species showed the same germination (± 75%). The results of the study showed that S. ledebouriana var. pyramidalis has a higher salt tolerance than S. matsudana Koidz, and is the most promising species for landscaping and improving a comfortable environment on saline and alkaline soils of the Saratov region settlements.
Keywords:: Salix ledebouriana var. pyramidalis, Salix matsudana Koidz., seeds, germination, seedlings, root outflow, germination energy, salt effect
