Managing White Mold on Common Bean with Type III Growth Habit by Integrating Partial Resistance, Plant Density, and Fungicide

The combination of plant density, fungicide, and levels of genotype resistance to white mold (WM) has not been studied for its effect on performance of common bean with type III growth habit under WM pressure. We established four sprinkler-irrigated trials in the fall to winter season in Brazil, com...

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Veröffentlicht in:Plant disease. - 1997. - 106(2022), 10 vom: 27. Okt., Seite 2672-2677
1. Verfasser: Vieira, Rogério F (VerfasserIn)
Weitere Verfasser: Lima, Renan C, Teixeira, Pablo H, Paula Júnior, Trazilbo J, Carneiro, José Eustáquio S, Possamai, Felipe, Braun, Heder, Lima, Marilene S
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Phaseolus vulgaris Sclerotinia sclerotiorum Sclerotinia stem rot dry bean fluazinam plant population plants per meter Aminopyridines Fungicides, Industrial 0P91PCK33Q
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245 1 0 |a Managing White Mold on Common Bean with Type III Growth Habit by Integrating Partial Resistance, Plant Density, and Fungicide 
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520 |a The combination of plant density, fungicide, and levels of genotype resistance to white mold (WM) has not been studied for its effect on performance of common bean with type III growth habit under WM pressure. We established four sprinkler-irrigated trials in the fall to winter season in Brazil, combining density (8, 14, 20, or 26 plants/m2), genotype (susceptible or partially resistant to WM), and fungicide to manage WM (two fluazinam applications or without fluazinam) at 0.5 m row spacing in fields infested with sclerotia. One trial was established in a warm region, aiming to obtain low WM pressure. For three trials, the linear mixed model was used. WM pressure in the trials ranged from low to high. Genotype × density × fungicide and genotype × density interactions were not significant for incidence, severity, and yield for all trials. In the three trials, severity was 29% lower at eight than at 26 plants/m2, and yield at 14 plants/m2 (3,294 kg/ha) was 14% higher than yield at eight plants/m2 (P = 0.035) where fluazinam was applied. However, without fluazinam, density did not affect yield. In conclusion, choices of plant density for type III bean cultivars do not need to take into account their resistance levels to WM in the fall to winter season. However, fungicide treatment to manage WM affects the choice of density, with 8 to 12 plants/m2 recommended if fungicide is not an option to manage WM (as in organic systems), and 10 to 14 plants/m2 recommended if fungicide applications are likely 
650 4 |a Journal Article 
650 4 |a Phaseolus vulgaris 
650 4 |a Sclerotinia sclerotiorum 
650 4 |a Sclerotinia stem rot 
650 4 |a dry bean 
650 4 |a fluazinam 
650 4 |a plant population 
650 4 |a plants per meter 
650 7 |a Aminopyridines  |2 NLM 
650 7 |a Fungicides, Industrial  |2 NLM 
650 7 |a fluazinam  |2 NLM 
650 7 |a 0P91PCK33Q  |2 NLM 
700 1 |a Lima, Renan C  |e verfasserin  |4 aut 
700 1 |a Teixeira, Pablo H  |e verfasserin  |4 aut 
700 1 |a Paula Júnior, Trazilbo J  |e verfasserin  |4 aut 
700 1 |a Carneiro, José Eustáquio S  |e verfasserin  |4 aut 
700 1 |a Possamai, Felipe  |e verfasserin  |4 aut 
700 1 |a Braun, Heder  |e verfasserin  |4 aut 
700 1 |a Lima, Marilene S  |e verfasserin  |4 aut 
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773 1 8 |g volume:106  |g year:2022  |g number:10  |g day:27  |g month:10  |g pages:2672-2677 
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