Resistance of Wheat to Leaf Spot Caused by Bipolaris sorokiniana. Krishan L. Adlakha, Former Plant Pathologist, Division of Mycology and Plant Pathology, Indian Agricultural Research Institute, New Delhi, India. Roy D. Wilcoxson, Professor, Department of Plant Pathology, University of Minnesota, St. Paul 55108; and S. P. Raychaudhuri, Former Head, Division of Mycology and Plant Pathology, Indian Agricultural Research Institute, New Delhi, India. Plant Dis. 68:320-321. Accepted for publication 20 October 1983. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-320.

Leaf lesions caused by Bipolaris sorokiniana on resistant cultivars of wheat (Triticum aestivum) were fewer and smaller and sporulated less than lesions on susceptible cultivars. In crosses involving four resistant and four susceptible wheats, resistance was dominant in the F₁ progenies. Disease reactions of the F₂ indicated that resistance was conditioned by two genes in the cultivar Motia and in lines E 5895 and HD 1927 and by one gene in line DT 188.