Seasonal Dynamics of Basic Needle Pigments of Some Representatives of the Genus Larch (Larix Mill.) in a Climate of the Nizhny Novgorod Region
2018
Logunov, D.V.
Larch is one of the most promising tree species for the increasing the productivity of forests and biodiversity of natural areas. The introduction of plants is the most important constructive mechanism for the stable functioning of natural stressful landscapes. The right choice of assortment of hardy-shrub species allows effectively conducting landscaping operations, creating plantations resistant to unfavorable factors on the areas experiencing heavy anthropogenic loads. The creation of plantations predetermines the need to study the biological features of larch. The chlorophyll and carotenoid content in the leaves is an important characteristic of the plant leaf apparatus. The goal of research is to reveal the seasonal character of the change in the chlorophyll and carotenoid content in the needles of some species of larch. During the growing season, a gradual accumulation of pigments occurs in the needles of the species under study. The maximum chlorophyll and carotenoid content is recorded in Larix pendula and Larix eurolepis. The high values of these indices in the invasive plants in comparison with the native representative of the genus are of great importance for the adaptation of species and indicate the prospects of their economic use for the needs of sustainable construction in the Nizhny Novgorod region.
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