Review of Breeding for Ascochyta Blight [Phoma exigua var. diversispora (Bubak) Boerema] Resistance in Common Bean

Abstract

Abstract

Bean ascochyta blight, caused by Phoma exigua var. diversispora, is an important disease of the common bean (Phaseolus vulgaris L.) throughout Rwanda. It is known to cause total crop losses, especially under humid conditions and low soil fertility. This review focuses on the taxonomy and agronomy of the common bean. It discusses the origin and diversity of beans, and highlights the production constraints. The review dwells on studies on genetic improvement of the common bean for resistance against ascochyta blight attack, and further opportunities available for rapid advance. It discusses the research achievements in the field, as well as greenhouse disease screening methods in the common bean, and highlights the breeding methods used in common beans. 

Keywords: Bean, screening, ascochyta blight, mating design

Cite this Article

Urinzwenimana C, Melis R, Sibiya J. Review of Breeding for Ascochyta Blight [Phoma exigua var. diversispora (Bubak) Boerema] Resistance in Common Bean. Research & Reviews: Journal of Crop Science and Technology. 2017; 6(2): 38–53p.