Morphology and pathogenicity of Rhizoctonia solani Kühn associated with potato black scurf in Nariño (Colombia) di Betancourth-García, Carlos A., Castro-Caicedo, Bertha Lucía, Quiroz-Ojeda, Claudia, Sañudo-Sotelo, Benjamin, Florez-Casanova, Carlos, Salazar-González, Claudia

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