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Biological Control of Potato Bacterial Wilt (Ralstonia solanacearum) Using Selected Plant Extracts Cover

Biological Control of Potato Bacterial Wilt (Ralstonia solanacearum) Using Selected Plant Extracts

Journal of Horticultural Research
Volume 31 (2023): Issue 2 (December 2023)
By: Marie Chantal Mutimawurugo,  Joshua Otieno Ogweno,  Nyokabi Isabel Wagara,  Jean Baptiste Muhinyuza,  Sylvestre Habimana and  Alphonsine Mukamuhirwa  
Open Access
|Dec 2023

Figures & Tables

Figure 1.

Biological control efficacy – BCE (%) of plant extracts against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAIBCE = [(DInegative control − DItreatment)/DInegative control] × 100; negative control – 1% DMSO, positive control – 2% copper oxychloride; values with the same letter in the same season and measurement term are not significantly different at p ≤ 0.05, according to Tukey’s test; error bars represent the standard deviation
Biological control efficacy – BCE (%) of plant extracts against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAIBCE = [(DInegative control − DItreatment)/DInegative control] × 100; negative control – 1% DMSO, positive control – 2% copper oxychloride; values with the same letter in the same season and measurement term are not significantly different at p ≤ 0.05, according to Tukey’s test; error bars represent the standard deviation

Figure 2.

Biological control efficacy – BCE (%) of application frequencies against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAINote: see Figure 1
Biological control efficacy – BCE (%) of application frequencies against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAINote: see Figure 1

Figure 3.

Biological control efficacy – BCE (%) of solvent extracts against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAINote: see Figure 1
Biological control efficacy – BCE (%) of solvent extracts against bacterial wilt in potato plants in seasons A and B 2021 on various days after extract injection – DAINote: see Figure 1

Figure 4.

Biological control efficacy – BCE (%) of plant extracts against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1
Biological control efficacy – BCE (%) of plant extracts against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1

Figure 5.

Biological control efficacy – BCE (%) of application frequencies against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1
Biological control efficacy – BCE (%) of application frequencies against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1

Figure 6.

Biological control efficacy – BCE (%) of solvent extracts against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1
Biological control efficacy – BCE (%) of solvent extracts against bacterial wilt in potato tubers in seasons A and B 2021Note: see Figure 1

Figure 7.

Effect of plant extracts on potato tuber postharvest infection – PHI and postharvest yield losses – PHL caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1
Effect of plant extracts on potato tuber postharvest infection – PHI and postharvest yield losses – PHL caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1

Figure 8.

Effect of application frequency of plant extracts on potato tuber postharvest infection – PHI (%) and postharvest yield losses – PHL (%) caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1
Effect of application frequency of plant extracts on potato tuber postharvest infection – PHI (%) and postharvest yield losses – PHL (%) caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1

Figure 9.

Effect of solvent extracts on potato tuber postharvest infection – PHI (%) and postharvest yield losses – PHL (%) caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1
Effect of solvent extracts on potato tuber postharvest infection – PHI (%) and postharvest yield losses – PHL (%) caused by Ralstonia solanacearum in seasons A and B 2021Note: see Figure 1

Data of interaction between tested factors in biological control efficacy – BCE (%) in potato plants (20, 30, 40, and 50 days after extract injection) in field experiments

Days after extract injectionSourceDFType III SSMean squareF valuePr > F
20PE*SE292.4903246.245160.150.8626 NS
PE*AF4790.37197197.592990.630.6406 NS
PE*SE*AF6676.62616112.771030.360.9009 NS
S*PE*SE*AF101020.98406102.098410.330.9711 NS
30PE*SE2325.99244162.996220.750.4757 NS
PE*AF4443.41670110.854170.510.7281 NS
PE*SE*AF6392.0647865.344130.300.9344 NS
S*PE*SE*AF10799.3602779.936030.370.9563 NS
40PE*SE2174.56352987.2817640.700.4986 NS
PE*AF4175.90039543.9750990.350.8403 NS
PE*SE*AF6743.20058345.4902980.370.6946 NS
S*PE*SE*AF101303.711089130.3711091.050.4123 NS
50PE*SE2193.05178196.5258900.600.5521 NS
PE*AF4293.03309373.2582730.450.7686 NS
PE*SE*AF6632.939955105.4899920.650.6861 NS
S*PE*SE*AF10989.79249198.9792490.610.7965 NS
DOI: https://doi.org/10.2478/johr-2023-0031 | Journal eISSN: 2353-3978 | Journal ISSN: 2300-5009
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Language: English
Page range: 129 - 140
Submitted on: Jun 1, 2023
|
Accepted on: Sep 1, 2023
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Published on: Dec 23, 2023
Published by: National Institute of Horticultural Research
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
Keywords:
control efficacy,
postharvest bulb infection,
postharvest bulb loss
Related subjects:
Life sciences,
Biotechnology,
Plant science,
Ecology,
Life sciences, other

© 2023 Marie Chantal Mutimawurugo, Joshua Otieno Ogweno, Nyokabi Isabel Wagara, Jean Baptiste Muhinyuza, Sylvestre Habimana, Alphonsine Mukamuhirwa, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution 4.0 License.

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