Fungal Species Associated with Graft Union on Grapevine, its Impact on GraftFailure Process and Attempted Solutions in Egypt
Abstract: Abstract:
This study was performed during 2011-2012 in four different locations in Egypt toinvestigate the fungal species associated with graft union cause grafting failure process.Phomopsis viticola was the most frequent pathogen isolated from graft failure seedlings ingraft union in all localities followed by Botryodiplodia theobromae. Whereas, the otherisolated fungi (Phoma sp., Fusarium solani and Alternaria solani) were negligible.Different approaches for disease management including chemical and biological methodswere carried out. Among different fungicides, Topsin M 70% (WP) and Kemazed 50%(WP) gave the best results for controlling fungal pathogens cause graft failure, followed byBillis 38% (WG), Saprol 19% (DC), Syllit 40% (SC) and Conazol 10% (EC). As alternativecontrol means, Bio-Zied (Trichoderma album), Rhizo-in (Bacillus subtilis) and Bio-Arc(Bacillus megaterium) reduced the percentage of disease incidence by 40.06 %, 26.92 %and 25.18 %, respectively. Based on the results obtained by this study, phytopathogenicfungi can be considered one of the most important factors influencing graft union successof grapevine in Egypt.

Key words: Verticillium dahliae; Mangifera indica; wilt; salt; Egypt
Publication year 2013
Pages 52-59
Organization Name
Author(s) from ARC
Publication Type Researsh & Applied Activities
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