Variation of leaf margin serration in Populus nigra of industrial dumps

• Published in: Acta Biologica Sibirica
• Main Author: Yu. A. Shtirs
• Format: Article in Journal/Newspaper
• Language: English
• Published: Altai State University 2017
• Subjects: древесные растения; Роpulus nіgra; листовая пластинка; изменчивость; изрезанность; промышленные отвалы; Biology (General); QH301-705.5; Sibirica
• Online Access: https://doi.org/10.14258/abs.v3i2.2731; https://doaj.org/article/4faafe297b63477bba8208eb48ebf0a4

The variability of leaf margin serration of Populus nigra L. in conditions of industrial dumps (coal mines dumps and overburden dumps) and city park is estimated. The value of this indicator is in the range from 1.25 to 1.76 and significantly increases along the gradient: coal mines dumps – overburden dumps – city park. From the number of selected gradations of P. nigra leaf blades, the gradation with values of 1.45-1.55 is most pronounced according to the analyzed index for industrial dumps, for the park – with the values of 1.55-1.65. The degree of serration of edge leaf blade is characterized by low values of variation – coefficient of variation is less than 10.0%. We registered the significant positive correlation between the average values of leaf margin serration and the length of P. nigra leaf blade.