Open AccessAssessment of the response of four spring barley varieties to the toxic effects of cadmium according to physiological, biochemical and morphometric parameters throughout the plant’s life cycle
Author(s) -
А.В. Дикарев
Publication year - 2020
Publication title -
proceedings of v international scientific conference “current state, problems and prospects of the development of agrarian science”
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-2020-5-9-10-87
Subject(s) - cadmium , loam , production cycle , straw , agronomy , biology , hordeum vulgare , limiting , horticulture , botany , chemistry , soil water , poaceae , ecology , organic chemistry , engineering , manufacturing engineering , mechanical engineering
At our previous laboratory experiments, it was found that different spring barley varieties have some different reactions to the cadmium stress at the morphologic, cytogenetic and biochemical levels of plants organization. Thus, the goal of the current work was to assess the reliability of the previous results at full vegetation cycle of plant. The experiment was carried out on the loamy soil with four contrasting at its reactions to the cadmium barley varieties. Cadmium tolerant varieties demonstrated significantly higher values of productivity (e.g. straw, in this case, weighted four times more) and had a less amounts of Cd2+ accumulated at tissues (1.2–2.5 times) in contrast to sensitive ones, which, in fact, gave no harvest at Cd2+pollution at a rate of 50 mg/kg. The identified polymorphism of barley varieties in terms of resistance is maintained throughout the plant’s life cycle.