[Macrophomina (charcoal) root rot of sesame in Syria]
1988
Al-Ahmad, M. | Saidawi, A.
This is the first record of charcoal root rot of sesame in Syria. 12 sites were suveyed. Laboratory isolation revealed that Macrophomina phaseolina was the causal organism of root rot, stalk rot, blight, and wilt symptoms on infected plants. The pathogen was isolated from root bark and stem pith, sclerotia and rarely pycnidia were formed on these parts of infected plant. Local varieties showed a relatively low rate of susceptibility (12-24%), while most of the introduced ones were highly susceptible. Sesame seed transmission of Macrophomina phaseolina was confirmed. Pathogenicity test proved that the pathogen induced typical symptoms to artificially infected plants
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