CORRELATION OF INDICATORS OF THE PIGMENT COMPOSITION OF EUROPEAN SPRUCE NEEDLES IN GEOGRAPHICAL CULTURES
Abstract
We studied the correlation interdependence between the phenotypic manifestations of the indicators of the pigment composition of needles in representatives of eleven geographically separated populations of Norway spruce in geographical cultures created in the Nizhny Novgorod region. The object of research is located in the zone of coniferous-broad-leaved forests (the third forest-growing zone) and is included in the area of coniferous-broad-leaved (mixed) forests of the European part of the Russian Federation. The forest growing conditions of the area are favorable for Norway spruce. At the stage of field work, typical trees were isolated, the total number of which was 368 pcs. Samples of annual needles were simultaneously selected from each of them. Quantitative estimates of the content of chlorophyll-a, chlorophyll-b, and carotenoids in the photosynthetic apparatus of accounting plants were obtained by the spectrophotometric method using the Wettstein and Holm equations. The mutual dependence in the content and ratio of plastid pigments in the coniferous spruce of the Norway spruce is established. The content of chlorophyll-a is more related to the total amount of green pigments (r = 0.984±0.009) and the presence of chlorophyll-b (r = 0.843±0.028). The content of chlorophyll-b had pronounced correlations with the sum of green pigments (r = 0.927±0.020) and the content of chlorophyll-a (r = 0.843±0.028). The association of carotenoid content with the presence of chlorophyll-a (r = 0.729±0.036) and chlorophyll-b (r = 0.614±0.41) was quite close. The adequacy of the description of the direct line equations of the interdependence between chlorophyll-a and chlorophyll-b: y = 1,771x + + 0.763 (R2 = 0.7113), between chlorophyll-a and the sum of chlorophylls: y = 0.683x + 0.068 (R2 = 0.9674), as well as between chlorophyll-a and the total number of pigments: y = 0.645x + 0.026; (R2 = 0.9681). The correlation of the characteristics of the pigment composition of the needles of representatives of different populations of Norway spruce in geographical cultures created on the territory of the Nizhny Novgorod region is quite a stable and statistically reliable indicator in assessing the general physiological state of the studied plants.
About the Authors
N. N. Besschetnova
Nizhny Novgorod state agricultural Academy
Russian Federation
Russian Federation
97, Gagarina Av., Nizhny Novgorod, 603107
V. P. Besschetnov
Nizhny Novgorod state agricultural Academy
Russian Federation
Russian Federation
97, Gagarina Av., Nizhny Novgorod, 603107
A. N. Ornatsky
Nizhny Novgorod state agricultural Academy
Russian Federation
Russian Federation
97, Gagarina Av., Nizhny Novgorod, 603107
A. Yu. Shcherbakov
Nizhny Novgorod state agricultural Academy
Russian Federation
Russian Federation
97, Gagarina Av., Nizhny Novgorod, 603107
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Review
For citations:
Besschetnova N.N., Besschetnov V.P., Ornatsky A.N., Shcherbakov A.Yu. CORRELATION OF INDICATORS OF THE PIGMENT COMPOSITION OF EUROPEAN SPRUCE NEEDLES IN GEOGRAPHICAL CULTURES. Conifers of the boreal area. 2022;40(1):9-17. (In Russ.)
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