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Research on Crops

Structural and functional characteristics of the leaves of economically valuable plants in arid environments 

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DOI: 10.31830/2348-7542.2023.ROC-919    | Article Id: ROC-919 | Page : 346-351
Citation :- Structural and functional characteristics of the leaves of economically valuable plants in arid environments​. Res. Crop. 24: 346-351
ALIYA KHUZHAKHMETOVA AND DARIA SAPRONOVA avfanc@yandex.ru
Address : Federal Research Centre of Agroecology, Complex Melioration and Forest Reclamations of the Russian Academy of Science, (Federal Research Center of Agroecology of the Russian Academy of Sciences), 97 Universitetskiy Prospekt, 400062, Volgograd, Russia
Submitted Date : 16-01-2023
Accepted Date : 22-02-2023
Online Published:

Abstract

The difficult forest conditions of the Volgograd region determine the relevance of research in the field of agroforestry. For the selection and use of tree species in plantations during the arrangement of agricultural land, it is necessary to identify the structural and functional features of the leaves, which are reliable indicators of the mechanism of plant adaptation to stress factors. The experiment was set up during June to September 2022 under field and laboratory conditions with the participation of the dendrological collections of the Nizhnevolzhskaya station for tree species breeding, a branch of the Federal Scientific Center for Agroecology of the Russian Academy of Sciences (50°078ʹN, 45°370ʹE). The objects of research are shrubs of different geographical origin: Berberis vulgaris L., Berberis heteropoda Schrenk., Ligustrum vulgare L., Cotinus coggygria Scop., Mahonia aquifolium Nutt., Corylus avellana L. and Ribes aureum Pursh. An optical method was used to assess the permeability of the epidermis of native mature leaves of the middle tier of the crown. The dynamics and variation of the content of photosynthetic pigments has been established. In Ligustrum vulgare, Mahonia aquifolium and Cotinus coggygria, a higher content of chlorophylls and a smaller number of palisade mesophyll cells were found than in heliophytes. The species specificity of the structural features of the palisade mesophyll, taking into account the ecological groups of shrubs, was revealed, as well as a positive correlation between the number of cells and the amount of chlorophyll of the palisade mesophyll in Cotinus coggygria (0.87) and Ribes aureum (0.85), Corylus avellana (0.63). The conducted studies allow obtaining new data on the adaptive capabilities of shrubs under the action of stress factors for their selection and further practical application in the field of agroforestry.

Keywords

Adaptation chlorophylls mesophyll photosynthesis shrubs 

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