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Sources of Resistance to Sorghum Grain Molds. R. Bandyopadhyay, Plant Pathologist, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru P.O., Andhra Pradesh 502 324, India. L. K. Mughogho, and K. E. Prasada Rao. Principal Plant Pathologist, and Senior Botanist, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru P.O., Andhra Pradesh 502 324, India. Plant Dis. 72:504-508. Accepted for publication 23 September 1987. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/PD-72-0504.

Selected accessions from the world collection of sorghum germ plasm were systematically screened in the field during the 19801985 rainy seasons to identify sources of grain mold resistance. Of 26,564 accessions in the collection, 7,132 that flowered and matured during the rainy season at ICRISAT Center were screened, and 156 genetically diverse lines were selected as resistant. All resistant accessions except one had colored pericarp. However, 24 accessions with colored pericarp had negligible amounts of tannin, and 14 of the 24 lacked the testa layer.