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- W2399690980 abstract "Objective. Show the possibility of method of the radiocapacity factor using for the study the phenomenon of adaptation of maize plants to the action of toxic factor - namely , introducing into the habitat of cadmium chloride solution. This method is proposed as convenient and adequate indicator of change of state of the objects under chemical stressor influence. Materials and methods. Experiments were performed in the laboratory, the object of research were the processes of water culture of maize plants (Zea Mays L.) variety Prydnistrovska adapting to the toxic metal action. Cadmium chloride solution was entered to the culture medium of plants at concentrations, selected according to the standard adaptive scheme of the experiment. Under this scheme, adaptive concentration (1 μM/L and 2 μM/L of salt CdCl2) was entered first, and through certain time (Δt) - test concentration (25 μM/L of salt CdCl2). The assessment of maize plants adaptation was carried out by the changing of growth parameters and of radiocapacity factor. The radiocapacity factor defined as the ratio of current activity in water (medium) by the specifically inserted tracer - 137Cs to the initial. Results and conclusions. The radiocapacity factor concentration dependence and dependencies under adaptive and stress influences to plants was obtained. The dependence of adaptation on the time interval between the test and adapting concentrations of cadmium chloride was revealed. And the effect of sensibilization on the growth and absorbing characteristics of plants of salt CdCl2 when the test concentration 25 μM/L entered at 4 hours after adaptive concentrations (1 μM/L and 25 μM/L) application was observed. It is shown that the radiocapacity factor is adequate, sensitive and efficient indicator manifesting the response of plants to stress influence in the conditions of adaptive schemes of influence using. Meta. Pokazaty mozhlyvist' vykorystannja faktoru radiojemnosti dlja vyvchennja javyshha adaptacii' roslyn kukurudzy do dii' toksychnogo faktoru, a same – vnesennja v seredovyshhe zhyvlennja rozchynu hlorydu kadmiju. Metod ocinky reakcii' roslyn kukurudzy na diju himichnogo stresoru za zminoju i'h poglynal'noi' aktyvnosti, jaku vidobrazhaje faktor radiojemnosti, proponujet'sja jak zruchnyj ta adekvatnyj pokaznyk zminy stanu doslidzhuvanogo ob’jektu. Materialy ta metody. Eksperymenty provodylys' v laboratornyh umovah, ob’jektom doslidzhen' buly procesy adaptacii' vodnoi' kul'tury roslyn kukurudzy (Zea mays L.) sortu Prydnistrovs'ka (Prydnistrovska) do dii' toksychnogo metalu. Rozchyn hlorydu kadmiju vnosyvsja v pozhyvne seredovyshhe roslyn v koncentracijah, vybranyh vidpovidno do standartnoi' adaptacijnoi' shemy eksperymentu. Zgidno z cijeju shemoju, spochatku vnosylas' adaptyvna koncentracija (1 mkM/l abo 2mkM/l soli CdCl2), a cherez pevnyj chas (Δt) – test-koncentracija (25 mkM/l soli CdCl2). Ocinka adaptacii' roslyn kukurudzy provodylas' za zminoju rostovyh pokaznykiv ta faktoru radiojemnosti. Ostannij vyznachaly jak vidnoshennja potochnoi' aktyvnosti u vodi (seredovyshhi) po special'no vnesenomu traseru – 137Ss, do pochatkovoi'. Rezul'taty ta vysnovky. Otrymano koncentracijni zalezhnosti faktoru radiojemnosti roslyn, a takozh zalezhnosti pry adaptyvnomu ta stresovomu vplyvah. Vyjavleno zalezhnist' projavu adaptacii' vid velychyny chasovogo intervalu mizh adaptujuchoju i testujuchoju koncentracijamy hlorydu kadmiju. Zokrema, adaptacija sposterigalas' pry zastosuvanni “test-koncentracii'” 25 mkM/l cherez 24 god pislja vnesennja adaptujuchyh koncentracij CdCl2 1 mkM/l ta 2 mkM/l v seredovyshhe zhyvlennja roslyn. Pry vnesenni testujuchoi' koncentracii' cherez 4 god pislja adaptujuchoi', sposterigaly sensybilizujuchu diju soli CdCl2 na rostovi ta poglynal'ni harakterystyky roslyn. Pokazano, shho faktor radiojemnosti je adekvatnym, chutlyvym pokaznykom, jakyj vidobrazhaje reakciju roslyn na stresovyj vplyv v umovah zastosuvannja adaptacijnoi' shemy vplyvu." @default.
- W2399690980 created "2016-06-24" @default.
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- W2399690980 date "2014-09-01" @default.
- W2399690980 modified "2023-09-23" @default.
- W2399690980 title "The assessment of maize plants (Zea mays L.) adaptation to the cadmium chloride influence using the radiocapacity factor." @default.
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