(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2010) Gregorczyk, Andrzej; Gawska, Agnieszka; Stolarska, Anna; Katedra Agronomii, Zakład Doświadczalnictwa, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Fizjologii Roślin, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Fizjologii Roślin, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
The goal of the study was the assessment of the elongation growth of the naked oat
var. 'Akt' to the contents of the toxic dosage of cadmium. Cadmium in toxically doses 20 and
100 mg per 1 kg of the soil and the control variant (0 mg Cd per 1 kg of the soil) were used in
the pot experiment. The kinetics of plant elongation growth was analysed by means of a logistic
function. The coefficients of logistic model have been estimated numerically by means of the
Levenberg-Marquardt method. The applied dose of cadmium 20 mg · kg–1 of the soil did not
significantly limited the elongation growth of the oak plants. The cadmium dose of 100 mg · kg–1
in the soil had an adverse influence on the growth as a result the stage of the maximum growth
speed was about 10 days delayed in comparison to the control variant and the final height of
plants was significantly limited.