Detection of seed-borne fungi on naturally infected seeds of sesame [Sudan]
1993
Baghdadi, A.M. | Salih, A.A.
Inspection of dry seed samles of sesame collected from different parts of the country showed that 72 of the seed samples contained dark black tiny sclerotia on the surface of the seeds. These were identified as the fungus Macrophomina phaseolina. Also brown to grey discolouration of seeds was observed. A number of fungi were detected in untreated and pre-treated seeds by the blotter method. In untreated seeds, 13 seed-borne fungi were found. Alternaria sesami and M. phaseolina were detected in about 76 of the samples, while the percentage of other fungi was rather low. In per-treated seeds, only 6 seed-borne fungi were encountered, and the percentages of A. sesame and M. phaseolina were also high (72). Other fungi showed small percentage of incidence in few samples. The result of untreated and per-treated seeds indicate clearly that A. sesami and M. phaseolina are more common on sesame seeds than other fungi. The occurrence of Curvularia lunata and Drechslera tetramera in per-treated seeds is a new record as seed-borne fungi in sesame.
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