Evaluation of selected Ethiopian sorghum genotypes for resistance to anthracnose

Dessalegn, Kebede; Lule, Dagnachew; Nida, Habte; Mekbib, Firew; Girma, Gezahegn; Mengiste, Tesfaye

doi:10.1007/s10658-021-02386-6

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…The most effective option for managing sorghum anthracnose in production fields is the use of resistant sources [2] [12] [13] [14] [15] [24] [25]. However, the presence of different pathotypes of the pathogen [8] [20] [21] [22] requires the need to continually evaluate diverse germplasm to identify stable resistant sources.…”

Section: Resultsmentioning

confidence: 99%

“…In Ethiopia, 366 sorghum landraces evaluated for anthracnose resistance in 2016 and 2017 showed that several landraces, including 71708, 71420, 16133, and 238388 with good agronomic traits exhibited low levels of anthracnose severity [24]. Dessalegn et al [25] also screened 225 Ethiopian sorghum landraces across several locations and identified lines 71552, 2001PWCo ll #025, 2001PWCo ll #034, and 2001PWCo ll #036 with good agronomic performance and resistance reactions to anthracnose. Variability in anthracnose response to anthracnose by accessions from Ethiopia and other locations from sorghum collections maintained by NGRP has been reported [11] [16] [17] [18].…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of a Subset of Ethiopia Sorghum Collection Germplasm from the National Genetic Resources Program of the United States Department of Agriculture for Anthracnose Resistance

Prom¹,

Cuevas²,

Ahn³

et al. 2022

AJPS

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Globally, one of the most devastating diseases of sorghum is anthracnose incited by Colletotrichum sublineola. During the 2019 and 2020 growing seasons, 94 and 64 accessions from the Ethiopian sorghum germplasm collection maintained by the National Genetic Resources Program of the United States Department of Agriculture were evaluated for anthracnose resistance. Seeds were planted in 1.8 m rows with 0.9 m row spacing in a randomized complete block design. The accessions and checks were replicated three times and 30 days after planting, inoculated by placing C. sublineola-colonized grains in the plant whorls. A total of 30 accessions, including PI533918, PI533923, PI534131 and PI534151 were resistant to the disease in both years. These identified resistant sources can be used in breeding programs to develop anthracnose-resistant lines and hybrids.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Evaluation of a Subset of Ethiopia Sorghum Collection Germplasm from the National Genetic Resources Program of the United States Department of Agriculture for Anthracnose Resistance

Prom¹,

Cuevas²,

Ahn³

et al. 2022

AJPS

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show abstract

Assessing genetic, racial, and geographic diversity among Ethiopian sorghum landraces and implications for heterotic potential for hybrid sorghum breeding

Girma,

Tirfessa,

Bejiga

et al. 2024

Mol Breeding

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Temporal and Spatial Dynamics of Anthracnose (Colletotrichum sublineolum) Disease on Selected Sorghum Genotypes at Assosa Zone, Western Ethiopia

Tsedaley,

Alemu

2024

F1000Res

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Background Over 500 million people worldwide rely on sorghum as a main food crop. About 10% of the daily caloric intake of households in Ethiopia’s northwest and eastern regions, including Benishangul Gumuz, comes from sorghum. A hemi-biotrophic fungal pathogen called Colletotrichum sublineolum caused anthracnose disease is among the biotic constraints of sorghum production. Methods Ten selected sorghum genotypes were assessed for sorghum anthracnose severity and its temporal and spatial dynamics on field plots in the districts of Assosa and Bambasi. The performance of the chosen sorghum genotypes was assessed using the following metrics: AUDPC, disease progress rate, yield-related trait, sorghum grain yield, and mean severity index. Anthracnose severity was evaluated using a 1–5 disease rating scale and assessments conducted at seven consecutive time points. Results Ten genotypes of sorghum were examined in the districts of Assosa and Bambasi, with mean anthracnose severity index ranging from 60-77 PSI and 53-82 PSI, respectively. AUDPC varied from 351 to 470 % days and 316 to 499 % days at Assosa and Bambasi districts, respectively. Bambasi district achieved a larger grain yield than the Assosa district. Assosa-1 demonstrated a significant level of disease pressure, yet the current investigation found that this genotype is the highest performing genotype in both locations. Conclusions There is a considerable positive link between the severity of anthracnose and the weekly total rainfall and relative humidity. At both trial sites, Mersa-1 continuously produced higher grain yields and reduced disease levels. Breeders might utilize the Baco Striga sorghum genotype as a check line in a breeding effort to resist anthracnose disease because it shown a high vulnerability to the disease at both locations.

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Evaluation of selected Ethiopian sorghum genotypes for resistance to anthracnose

Cited by 3 publications

References 26 publications

Evaluation of a Subset of Ethiopia Sorghum Collection Germplasm from the National Genetic Resources Program of the United States Department of Agriculture for Anthracnose Resistance

Evaluation of a Subset of Ethiopia Sorghum Collection Germplasm from the National Genetic Resources Program of the United States Department of Agriculture for Anthracnose Resistance

Assessing genetic, racial, and geographic diversity among Ethiopian sorghum landraces and implications for heterotic potential for hybrid sorghum breeding

Temporal and Spatial Dynamics of Anthracnose (Colletotrichum sublineolum) Disease on Selected Sorghum Genotypes at Assosa Zone, Western Ethiopia

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