Comparative evaluation of adaptation potential of black currant to uptake Ni in sod-podzolic soil
The paper analyzes the adaptive abilities of black currant cultivars of plants for the assimilation of nickel from highly cultivated sod-podzolic soils containing 10.7-14.1 mg / kg of fluent nickel. Plantings were monitored at experimental plantings of ARHIBAN (Moscow region) on 9 black currant cultivars: Oryol Serenade, Belarusskaja sladkaja, Zagadka, Vologda, Triton, Biryulevskaya, Titania, Orlowsky waltz, Exotica. The agrochemical properties of the soil, the content of fluent nickel in the soil, and its content in the fruits of black currant plants were determined. Based on the analysis, the coefficients of nickel assimilation by black currant plants were calculated and statistical dependencies of its accumulation indicators on agrochemical properties of sod-podzolic soils at different depths of the root layer were determined. According to the results of research, regression dependences of the accumulation of nickel in black currant fruits on the indicators of the agrochemical properties of the soil and the content in the soil of fluent nickel were constructed. It was established that the nickel content in black currant fruits primarily depended on the acidity of the soil, on the content in the soil of fluent nickel, alkaline hydrolysable nitrogen and fluent potassium. Black currant cultivars Belarusskaja sladkaja, Vologda, Triton, Biryulevskaya, Titania were more resistant to soil pollution with nickel.