Abstract

By tests using standard moist blotters, potato–dextrose–agar plates, and moist sterilized sand, 26 fungal species belonging to 13 genera were isolated from seeds of Cedrus deodara Loud. Most of these fungi were present on seed surfaces and only nine caused deep-seated internal infections. Some of the more common species in different tests were Aspergillus flavus, A. luchuensis, Epicoccum purpurascens, Fusarium moniliforme, Pénicillium canadense, and Rhizopus oryzae. Aspergillus flavus, Penicillium canadense, and Rhizopus oryzae showed differences in pathogenicity to seed germination and seedling development in sterilized and unsterilized soils. Of the nine fungicides tested for the control of the seed-borne fungi, RH-2161, a liquid fungicide, was found to be the most effective. Dithane M-45 was also effective, whereas the remaining seven fungicides were less effective.

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