Bacterial blight poses a significant threat to sesame production in Ethiopia, especially in regions with high rainfall. It causes yield reduction and affects seed quality by inducing premature leaf defoliation. To address these challenges, evaluating existing germplasm for disease resistance is crucial. This study assessed various sesame genotypes for resistance to bacterial blight and their performance in seed yield and seed yield related traits. Seventeen genotypes were evaluated in a randomized complete block design at Kamashi research sub-station. Resistance evaluations were conducted every 14 days from emergence up to 72 days, along with recording seed yield and related agronomic and morphological traits. The mean area under the disease progress curve (AUDPC) varied from 673.86 to 825.01, indicating differing susceptibility levels to disease advancement. Approximately 46.67% of the tested genotypes exhibited lower AUDPC compared to Benishangul-1, a variety specifically developed for its adaptability and resistance for bacterial blight-prone regions. Initially, at 14 and 28 days after emergence (DAE), no noticeable bacterial blight symptoms were observed across the genotypes. However, at 42, 56, and 72 DAE, the average severity index steadily rose to 16.92%, 20.78%, and 27.71%, respectively. This transition from immunity to moderate susceptibility underscores the dynamic nature of disease progression and the significant challenge posed by bacterial blight in later sesame growth stages. Notably, significant differences (P<0.05) were noted in days to 50% flowering, days to 90% maturity, plant height to the first branch, overall plant height, length of the capsule-bearing zone, and seed yield. This comprehensive evaluation offers valuable insights into the genetic diversity to improve crop performance and yield potential.
| Published in | Advances in Bioscience and Bioengineering (Volume 12, Issue 3) |
| DOI | 10.11648/j.abb.20241203.12 |
| Page(s) | 58-66 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Area Under Disease Progress Curve, Bacterial Blight (Xanthomonas campestris pv. sesami), Disease Reaction, Percentage of Severity Index, Seed Yield
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APA Style
Gedifew, S. (2024). Resistance of Sesame (Sesamum indicum L.) Genotypes Against Bacterial Blight (Xanthomonas campestris pv. sesami) in Benishangul Gumuz Region, Northwestern Ethiopia. Advances in Bioscience and Bioengineering, 12(3), 58-66. https://doi.org/10.11648/j.abb.20241203.12
ACS Style
Gedifew, S. Resistance of Sesame (Sesamum indicum L.) Genotypes Against Bacterial Blight (Xanthomonas campestris pv. sesami) in Benishangul Gumuz Region, Northwestern Ethiopia. Adv. BioSci. Bioeng. 2024, 12(3), 58-66. doi: 10.11648/j.abb.20241203.12
AMA Style
Gedifew S. Resistance of Sesame (Sesamum indicum L.) Genotypes Against Bacterial Blight (Xanthomonas campestris pv. sesami) in Benishangul Gumuz Region, Northwestern Ethiopia. Adv BioSci Bioeng. 2024;12(3):58-66. doi: 10.11648/j.abb.20241203.12
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Download@article{10.11648/j.abb.20241203.12,
author = {Sintayehu Gedifew},
title = {Resistance of Sesame (Sesamum indicum L.) Genotypes Against Bacterial Blight (Xanthomonas campestris pv. sesami) in Benishangul Gumuz Region, Northwestern Ethiopia
},
journal = {Advances in Bioscience and Bioengineering},
volume = {12},
number = {3},
pages = {58-66},
doi = {10.11648/j.abb.20241203.12},
url = {https://doi.org/10.11648/j.abb.20241203.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.abb.20241203.12},
abstract = {Bacterial blight poses a significant threat to sesame production in Ethiopia, especially in regions with high rainfall. It causes yield reduction and affects seed quality by inducing premature leaf defoliation. To address these challenges, evaluating existing germplasm for disease resistance is crucial. This study assessed various sesame genotypes for resistance to bacterial blight and their performance in seed yield and seed yield related traits. Seventeen genotypes were evaluated in a randomized complete block design at Kamashi research sub-station. Resistance evaluations were conducted every 14 days from emergence up to 72 days, along with recording seed yield and related agronomic and morphological traits. The mean area under the disease progress curve (AUDPC) varied from 673.86 to 825.01, indicating differing susceptibility levels to disease advancement. Approximately 46.67% of the tested genotypes exhibited lower AUDPC compared to Benishangul-1, a variety specifically developed for its adaptability and resistance for bacterial blight-prone regions. Initially, at 14 and 28 days after emergence (DAE), no noticeable bacterial blight symptoms were observed across the genotypes. However, at 42, 56, and 72 DAE, the average severity index steadily rose to 16.92%, 20.78%, and 27.71%, respectively. This transition from immunity to moderate susceptibility underscores the dynamic nature of disease progression and the significant challenge posed by bacterial blight in later sesame growth stages. Notably, significant differences (P<0.05) were noted in days to 50% flowering, days to 90% maturity, plant height to the first branch, overall plant height, length of the capsule-bearing zone, and seed yield. This comprehensive evaluation offers valuable insights into the genetic diversity to improve crop performance and yield potential.
},
year = {2024}
}
TY - JOUR T1 - Resistance of Sesame (Sesamum indicum L.) Genotypes Against Bacterial Blight (Xanthomonas campestris pv. sesami) in Benishangul Gumuz Region, Northwestern Ethiopia AU - Sintayehu Gedifew Y1 - 2024/08/30 PY - 2024 N1 - https://doi.org/10.11648/j.abb.20241203.12 DO - 10.11648/j.abb.20241203.12 T2 - Advances in Bioscience and Bioengineering JF - Advances in Bioscience and Bioengineering JO - Advances in Bioscience and Bioengineering SP - 58 EP - 66 PB - Science Publishing Group SN - 2330-4162 UR - https://doi.org/10.11648/j.abb.20241203.12 AB - Bacterial blight poses a significant threat to sesame production in Ethiopia, especially in regions with high rainfall. It causes yield reduction and affects seed quality by inducing premature leaf defoliation. To address these challenges, evaluating existing germplasm for disease resistance is crucial. This study assessed various sesame genotypes for resistance to bacterial blight and their performance in seed yield and seed yield related traits. Seventeen genotypes were evaluated in a randomized complete block design at Kamashi research sub-station. Resistance evaluations were conducted every 14 days from emergence up to 72 days, along with recording seed yield and related agronomic and morphological traits. The mean area under the disease progress curve (AUDPC) varied from 673.86 to 825.01, indicating differing susceptibility levels to disease advancement. Approximately 46.67% of the tested genotypes exhibited lower AUDPC compared to Benishangul-1, a variety specifically developed for its adaptability and resistance for bacterial blight-prone regions. Initially, at 14 and 28 days after emergence (DAE), no noticeable bacterial blight symptoms were observed across the genotypes. However, at 42, 56, and 72 DAE, the average severity index steadily rose to 16.92%, 20.78%, and 27.71%, respectively. This transition from immunity to moderate susceptibility underscores the dynamic nature of disease progression and the significant challenge posed by bacterial blight in later sesame growth stages. Notably, significant differences (P<0.05) were noted in days to 50% flowering, days to 90% maturity, plant height to the first branch, overall plant height, length of the capsule-bearing zone, and seed yield. This comprehensive evaluation offers valuable insights into the genetic diversity to improve crop performance and yield potential. VL - 12 IS - 3 ER -
Ethiopian Institute of Agricultural Research, Assosa Agricultural Research Center, Assosa, Ethiopia
