STUDY THE EFFECT OF BIOLOGICAL CONTROL FUNGUS INCORPORATED WITHIN EXTRACTS OF SOME PLANTS FOR TREATING OF DRECHSLERA SPP DISEASE IN DATE PALM TREES (IN VITRO)

Autor: Z. M. Sarhan
Jazyk: Arabic<br />English
Rok vydání: 2023
Předmět:
Zdroj: مجلة الأنبار للعلوم الزراعية, Vol 21, Iss 2, Pp 446-455 (2023)
Druh dokumentu: article
ISSN: 1992-7479
2617-6211
DOI: 10.32649/ajas.2024.142693.1070
Popis: This research work has been carried out at the University of Baghdad, College of Agricultural Engineering Sciences, Plant Protection Department. The goal of the study was to determine how effectively biological fungus and a few plant extracts could be used to combat the pathogenic fungus that causes date palm blotch disease. Due to the fact that the antagonism was measured in a lab setting, the study demonstrated that the biological fungus Trichoderma Harzianum had a high antagonistic power against the pathogenic fungus Drechslera spp. The outcomes elucidated that the plant extracts of garlic and coriander, as well as biological control fungi have significantly suppressed the growth of pathogenic fungus. Also, the results manifested that the ability of an alcoholic extract of garlic to suppress the pathogenic fungus was superior to an alcoholic extract of coriander at various doses. The biological fungus is able to combat the diseases by surrounding their mycelium with its own, entering their walls, and devouring their nutrient-rich interiors. Additionally, the results of the experiment evinced that the percentage of inhibition for alcoholic extract varied significantly between the plant extracts with garlic extract recording the highest percentage of inhibition 98% and the coriander extract recording the lowest percentage of inhibition 89%. Phenols and saponins were also detected in the compositions under study. And, the zones' diameter of the inhibition for the ethanolic and aqueous extracts, respectively, varied from 4.1 to 14.3 mm and 2.4 to 10.4 mm, respectively.
Databáze: Directory of Open Access Journals
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