Identification of sources of resistance in cowpea lines to Macrophomina root rot disease in Northern Ghana

Lamini, Salim; Kusi, Francis; Cornelius, Eric William; Danquah, Agyemang; Attamah, Patrick; Zakaria, M.; Awuku, Frederick Justice; Owusu, Emmanuel Yaw; Acheampong, Mavis A.; Mensah, Gloria

doi:10.1016/j.heliyon.2022.e12217

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…Several genotypes, including landraces ( Table 5 ), with resistance to cowpea pathogens have been identified, such as for bacterial blight [ 261 ], cercospora [ 284 ] and fusarium wilt [ 260 ]. Diallel crosses were used to breed for resistance to macrophomina root rot disease [ 285 ], while eight resistant lines were identified by Lamini et al [ 286 ].…”

Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 99%

Cowpea Constraints and Breeding in Europe

Lazaridi

Bebeli

2023

Plants

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Cowpea (Vigna unguiculata (L.) Walp.) is a legume with a constant rate of cultivation in Southern European countries. Consumer demand for cowpea worldwide is rising due to its nutritional content, while Europe is constantly attempting to reduce the deficit in the production of pulses and invest in new, healthy food market products. Although the climatic conditions that prevail in Europe are not so harsh in terms of heat and drought as in the tropical climates where cowpea is mainly cultivated, cowpea confronts with a plethora of abiotic and biotic stresses and yield-limiting factors in Southern European countries. In this paper, we summarize the main constraints for cowpea cultivation in Europe and the breeding methods that have been or can be used. A special mention is made of the availability plant genetic resources (PGRs) and their potential for breeding purposes, aiming to promote more sustainable cropping systems as climatic shifts become more frequent and fiercer, and environmental degradation expands worldwide.

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Section: Cowpea Plant Genetic Resources For Main Productivity Constra...mentioning

confidence: 99%

Cowpea Constraints and Breeding in Europe

Lazaridi

Bebeli

2023

Plants

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Genomics-Enabled Breeding for Sustainable Management of Pests and Diseases in Cowpea

Manu,

Ugalat,

Biradar

et al. 2024

Genomics-Aided Breeding Strategies for Biotic Stress in Grain Legumes

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Paper Towel Method: In Vitro Inoculation Technique for Rapid and Robust Assessment of Clusterbean and Cowpea Genotypes Against Macrophomina phaseolina

Prajapati,

Devi

et al. 2024

Microbiology Research

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The development and standardization of an effective inoculation technique are essential for reliable screening of crop genotypes. In this study, three inoculation methods—in vitro paper towel, in vitro agar, and soil inoculation in pots—were tested to evaluate the pathogenic potential of Macrophomina phaseolina, the causative agent of dry root rot (DRR). Since the pathogenicity of M. phaseolina is influenced by environmental factors, identifying a robust inoculation method is critical. Among the three techniques, the paper towel inoculation method resulted in the highest seedling mortality of 66.66% in cluster beans and 86.67% in cowpeas within just ten days, demonstrating its effectiveness. The agar inoculation technique, while successful, required 15 days to confirm pathogenicity, with seedling mortality rates of 63.33% for cowpeas and 53.33% for cluster beans. In contrast, the soil inoculation method showed comparatively lower mortality rates, with 36.66% for cluster beans and 26.67% for cowpeas. Based on these findings, the paper towel method emerged as the most efficient technique for inducing rapid pathogenicity in M. phaseolina in both cowpeas and cluster beans. Its suitability was further validated through the screening of released varieties of these crops compared against the soil inoculation method. Notably, genotypes that appeared moderately resistant under the soil inoculation method were found to range from susceptible to highly susceptible when evaluated using the paper towel technique. These results underscore the reliability of the paper towel method as a rapid and robust screening tool for identifying resistant genotypes of cowpea and cluster bean on a larger scale.

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Identification of sources of resistance in cowpea lines to Macrophomina root rot disease in Northern Ghana

Cited by 3 publications

References 36 publications

Cowpea Constraints and Breeding in Europe

Cowpea Constraints and Breeding in Europe

Genomics-Enabled Breeding for Sustainable Management of Pests and Diseases in Cowpea

Paper Towel Method: In Vitro Inoculation Technique for Rapid and Robust Assessment of Clusterbean and Cowpea Genotypes Against Macrophomina phaseolina

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