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Ascochyta Blight of Chickpea: A Menace to Be Managed by Resistance Breeding

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Diseases in Legume Crops

Abstract

Chickpea (Cicer arietinum) is cultivated in more than 50 countries and is one of the most valued legumes due to its nutritional content. Ascochyta blight (AB) is a major disease that significantly affects crop yield leading to a large gap between demand and production. Approaches for disease management like cultural practices and chemical control either have limited effectiveness or are not ecofriendly. The only available environment-friendly approach to improve crop resistance with complete efficacy is breeding resistant genotypes. The vital prerequisite for sustainable agricultural production is the development of durable host resistance. Owing to the diversity of the pathogen population and prevalence of partial resistance in known sources of resistance, chickpea is susceptible to several races of Ascochyta rabiei. Hence, it is challenging to breed varieties with effective and stable resistance. Recent advances in the genetic and genomic know-hows have provided better understanding of the complex host-pathogen interactions. In addition, several AB-resistant gene(s)/QTL/genomic regions have been identified on various linkage groups. These genomic resources could be precisely utilized in genomic-assisted breeding by the plant breeders to develop and/or transfer AB-resistant genomic regions to elite cultivars.

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Correspondence to Shayla Bindra .

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Bindra, S. et al. (2023). Ascochyta Blight of Chickpea: A Menace to Be Managed by Resistance Breeding. In: Jha, U.C., Nayyar, H., Sharma, K.D., von Wettberg, E.J.B., Singh, P., Siddique, K.H. (eds) Diseases in Legume Crops. Springer, Singapore. https://doi.org/10.1007/978-981-99-3358-7_2

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