Impact of biological growth regulators on the ratio of photosynthetic pigments of Campanula alliariifolia-Reference-Cited by-同舟云学术

Impact of biological growth regulators on the ratio of photosynthetic pigments of Campanula alliariifolia

Published:2024-08-05 Issue:06 Volume:24 Page:802-812
ISSN:1997-4868
Container-title:Agrarian Bulletin of the
language:en
Short-container-title:

Author:

Reut Antonina¹,Allayarova Irina,Biglova Aygul',Lastochkina Oksana

Affiliation:

1. South Ural Botanical Garden Institute - a separate structural unit of the Ufa Federal Research Center of the Russian Academy of Sciences

Abstract

Abstract. The purpose is to study the effectiveness of the action of the natural signaling molecule salicylic acid (SA) and Bacillus subtilis (Bs) on the ratio of photosynthetic pigments (PhSP) in plant materials (leaves) of Campanula alliariifolia Willd. and its decorativeness. Methods. Using spectrophotometric techniques, an analysis was carried out of the dynamics of the content of pigments (chlorophyll a, chlorophyll b and carotenoids) under the influence of a strain of the bacterium Bacillus subtilis, isolated at the Bashkir Scientific Research Institute of Agriculture of the Federal Research Center of the Russian Academy of Sciences (Ufa) from the arable soil layer of the Republic of Bashkortostan, and its combination with salicylic acid during the growing season. Scientific novelty. The influence of the B. subtilis strain separately and together with salicylic acid on the physiological parameters and decorative properties of Campanula alliariifolia in the conditions of the Bashkir Cis-Ural was studied. Results. The content and ratio of PhSP in dynamics (phases of budding, flowering and fruiting) were analyzed. It was revealed that inoculation of C. alliariifolia plants with Bacillus subtilis significantly increases the amount of carotenoids during the flowering phase. During the fruiting phase, the maximum content of PhSP was noted in the Bs + SA variant of the experiment. Two-factor analysis of variance showed that the significant influence of factor A (vegetation phase), factor B (different experimental options), and the degree of total influence of two factors (A × B) on the content of PhSP in samples of campanula leaves is statistically significant for the studied indicators. It was found that inoculation with the B. subtilis strain maximized indicators such as the abundance of flowering and the density of bellflower inflorescences, thereby improving the decorativeness of C. alliariifolia in the conditions of the Bashkir Cis-Ural.

Publisher

Urals State Agrarian University

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