Efficacy test of medicinal plants in controlling seed pathogens of rice
2003
Nuchnart Jonglaekha(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Plant Pathology) | Sombat Srichuwong(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Plant Pathology) | Nutchanart Koommankas(Chiang Mai University, Chiang Mai (Thailand). Faculty of Agriculture. Department of Plant Pathology)
Rice seeds were collected from 11 farmers in 4 districts of Chiang Mai province, they were investigated for seed-borne fungi. Efficacy tests of medicinal plants extracts on inhibiting growth of major fungi Alternaria sp., Bipolaris sp., Curvularia sp. and Fusarium sp. were made. Using garlic, galangal and turmeric and ethanol extracts of dried turmeric rhizome. Results showed that all extracts at all concentrations could differently inhibit growth of the fungi. Three water extracts of fresh garlic, galangal and turmeric and ethanol extracts of dried turmeric and powder of these plants were used for seed dressing and using Blotter Method to detect seed borne fungi. It was found that water extract of the three plants could reduce amount of fungi and did not affect seed germination while ethanol extracts and powder of the plants showed reduction of germination.
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