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Laboratory Evaluation of Pink Root and Fusarium Basal Rot Resistance in Garlic. M. M. Rengwalska, Research Plant Breeder, Research Institute of Vegetable Crops, 96 100 Skierniewice, Poland. P. W. Simon, Research Geneticist, Agricultural Research Service, U.S. Department of Agriculture, and Associate Professor, Department of Horticulture, University of Wisconsin-Madison 53706. Plant Dis. 70:670-672. Accepted for publication 31 December 1985. Copyright 1986 The American Phytopathological Society. DOI: 10.1094/PD-70-670.

Laboratory methods for screening pink root (Pyrenochaeta terrestris) resistance and Fusarium basal rot (Fusarium oxysporum f. sp. cepae) in onion were applied to garlic (Allium sativum). Seven clones of diverse origin were screened, and evidence of resistance was observed. Symptoms of both diseases were least severe in PI 493112 (from Poland) and PI 493106 (from Austria). PI 493118 (from Poland) was pink root-resistant but Fusarium-susceptible. Phenotypic variation between and within the clones tested suggests the possibility for resistance selection in garlic.