Sustainable Management of Grapevine Root-Rot by Biological Approach in Assiut Governorate | ||||
Assiut Journal of Agricultural Sciences | ||||
Article 7, Volume 56, Issue 2, April 2025, Page 98-113 PDF (945.79 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ajas.2025.347581.1446 | ||||
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Authors | ||||
Noha A. Mohamed ![]() | ||||
1Plant Pathology Research Institute, Agriculture Research Center, 12619, Giza, Egypt. | ||||
2Plant Pathology Department. Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||||
Abstract | ||||
Grapevine (Vitis vinifera L.) is considered one of the most important fruits grown in Egypt and worldwide. Soil-borne fungi are the primary cause of grapevine root-rot disease. This study was conducted to control root-rot disease in grapes sustainably using eco-friendly biological methods. One hundred isolates were obtained from the roots of affected grapes collected from various locations in Assiut governorate, Egypt. The isolated fungi were identified as Fusarium solani, Cylindrocarpon tenue, and Macrophomina phaseolina. Antagonism tests revealed that seven isolates from the grape root rhizosphere inhibited pathogenic fungi mycelium growth in vitro. The effect of Trichoderma spp. culture filtrates was tested, showing the highest inhibition of fungal pathogen mycelium growth. The antagonistic fungi with the greatest inhibitory effects were identified and used in greenhouse experiments. Soil treatment with bio-agents (Trichoderma harzianum, T. longibrachiatum, and T. pseudokoningii) decreased the incidence and severity of the disease. It also increased all tested plant growth characteristics, such as root and shoot length, and fresh and dry weights of both roots and shoots, compared to commercial bio-pesticides (Rhizo-N). | ||||
Keywords | ||||
Biological control; Grapevine; Root-rot; Trichoderma spp | ||||
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