Antagonistic Activity of Trichoderma Strains Isolated from Southeast Kazakhstan Soils Against Phytopathogenic Fungi and Their Effects on Pea Growth
Assylbek A. Rakhimova Y. Sypabekkyzy G. Kyzmetova L. Dzhunuskanova B.
December 2023International Information and Engineering Technology Association
International Journal of Design and Nature and Ecodynamics
2023#18Issue 61279 - 1290 pp.
This study aimed to assess the antagonistic activity of Trichoderma strains, isolated from the soils of Southeast Kazakhstan, against phytopathogenic fungi and their potential effects on the growth of two pea plant varieties, Nikitka and Zhigalova 112. A double culture method and paper disk inoculation were employed to evaluate the antagonistic activity of the Trichoderma strains. Comparisons of colony radius sizes indicated that T. longibrachiatum exhibited significant overlap with all test subjects, while the colony radii of T. harzianum and T. viridescens, although smaller than that of T. longibrachiatum, surpassed those of all test objects. The zones of growth suppression for phytopathogenic fungi ranged from 2.5±0.14 mm to 17.7±0.23 mm. Notably, the most pronounced suppression was observed in T. koningiopsis and T. viridescens strains. The Trichoderma strains demonstrated varied impacts on the growth of two pea plant varieties. Generally, an enhancement in root system growth was observed. This observation implies that the isolated Trichoderma strains, exhibiting high antagonistic activity against phytopathogenic fungi and stimulating pea root system growth, hold potential utility in sustainable agricultural practices.
antagonistic activity , Kungei Alatau , phytopathogen , rhizosphere , soil fungus , strain , Trichoderma
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Laboratory of Mycology and Algology, Institute of Botany and Phytointroduction, Almaty, 480070, Kazakhstan
Laboratory of Mycology and Algology
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