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Abd El-Aziz, M., Abd El-Ghafar, N., Abo El-Abbas, F., Mostafa, M. (2007). EFFECT OF EXPOSURE OF POTATO TUBERS TO VOLATILE COMPOUNDS ON Rhizoctonia solani AND Ralstonia solanacearum TRANSMITTED BY TUBERS. Journal of Plant Production, 32(5), 3515-3522. doi: 10.21608/jpp.2007.208140
M. E. Abd El-Aziz; N. Y. Abd El-Ghafar; F. M. Abo El-Abbas; M. H. Mostafa. "EFFECT OF EXPOSURE OF POTATO TUBERS TO VOLATILE COMPOUNDS ON Rhizoctonia solani AND Ralstonia solanacearum TRANSMITTED BY TUBERS". Journal of Plant Production, 32, 5, 2007, 3515-3522. doi: 10.21608/jpp.2007.208140
Abd El-Aziz, M., Abd El-Ghafar, N., Abo El-Abbas, F., Mostafa, M. (2007). 'EFFECT OF EXPOSURE OF POTATO TUBERS TO VOLATILE COMPOUNDS ON Rhizoctonia solani AND Ralstonia solanacearum TRANSMITTED BY TUBERS', Journal of Plant Production, 32(5), pp. 3515-3522. doi: 10.21608/jpp.2007.208140
Abd El-Aziz, M., Abd El-Ghafar, N., Abo El-Abbas, F., Mostafa, M. EFFECT OF EXPOSURE OF POTATO TUBERS TO VOLATILE COMPOUNDS ON Rhizoctonia solani AND Ralstonia solanacearum TRANSMITTED BY TUBERS. Journal of Plant Production, 2007; 32(5): 3515-3522. doi: 10.21608/jpp.2007.208140

EFFECT OF EXPOSURE OF POTATO TUBERS TO VOLATILE COMPOUNDS ON Rhizoctonia solani AND Ralstonia solanacearum TRANSMITTED BY TUBERS

Article 13, Volume 32, Issue 5, May 2007, Page 3515-3522  XML PDF (635.39 K)
Document Type: Original Article
DOI: 10.21608/jpp.2007.208140
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Authors
M. E. Abd El-Aziz; N. Y. Abd El-Ghafar; F. M. Abo El-Abbas; M. H. Mostafa
Dept. of Plant Pathology, Fac. of Agric. Ain Shams Univ. Cairo, Egypt
Abstract
Potato tubers infected with Rhizoctonia solani and Ralstonia solanacearm, the causal organisms of black scurfand bacterial wiltdiseases were obtained from store-houses and fields  at different areas in Egypt.The pathogenswere isolated from infected potato tubers and identified.Tubers were treated with the volatile compounds (methanol , ethanol , amyl alcohol , formic acid ,  acetic acid , propionic acid , gasmonic acid , formaldehyde , acetaldehyde , chloroform , acetone) in fumigation chamber (2.3 L) at different levels. Results indicated that formaldehyde , formic acid , acetic acid and propionic acid showed high reductive effect on mycelial growth of Rhizoctonia solani from treated sclerotia on water agar medium. Formaldehyde and acetic acid showed eradicative effect on latent infection of  Ralstonia solanacearm.However, these compoundsshowed no harmful effect on potato tubers sprouting when potato tubers were fumigated by 2.5 µl / l air space for 60 min.                                                                             
Keywords
Black scurf; Bacterial wilt; Formaldehyde; Acetic acid; Vapor
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