Leaf Spot, Rust, and Smut Resistance in Pearl Millet Landraces from Central Burkina Faso. Jeffrey P. Wilson, Department of Plant Pathology, USDA-ARS, University of Georgia Coastal Plain Experiment Station, Tifton 31793. Glenn W. Burton, Homer D. Wells, Jean-Didier Zongo, and Idrissa Ousmane Dicko. Department of Agronomy, Department of Plant Pathology, USDA-ARS, University of Georgia Coastal Plain Experiment Station, Tifton 31793; and Ouagadougou University, Ouagadougou, Burkina Faso, West Africa. Plant Dis. 73:345-349. Accepted for publication 3 January 1989. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1989. DOI: 10.1094/PD-73-0345.

S₁ bulks of 111 pearl millet landraces collected in central Burkina Faso were evaluated for resistance to Pyricularia grisea, Puccinia substriata var. indica, Bipolaris setariae, and Moesziomyces penicillariae. The isolates of the pathogens were collected in the United States. All inoculations were performed in the greenhouse at Tifton, Georgia. Seedlings were inoculated with P. grisea and P. s. var. indica. Maturing plants were inoculated with B. setariae and emerging inflorescences inoculated with M. penicillariae. Within the landraces, the frequency of plants resistant to P. grisea ranged from 39.2 to 98.2% (* = 80.7%). Frequency of plants resistant to P. s. var. indica ranged from 0 to 47.5% (* = 5.1%). Mesothetic reactions (both resistant and susceptible reactions on the same plant) were common. All plants of all landraces were resistant to B. setariae. Differences in resistance to M. penicillariae existed among the landraces. Percent seed set ranged from 12.2 to 68.0% (* = 34.3%) and was not correlated (r = 0.03, P = 0.78) with percent florets with sori, which ranged from 1.2 to 18.1% (* = 6.4%). These landrace accessions will provide useful genes for pearl millet breeding as well as genes for characterizing the pathogen populations that affect the crop.