Charcoal Rot Severity and Soybean Yield Responses to Planting Date, Irrigation, and Genotypes

Soybean (Glycine max [L.] Merr.) production is influenced by planting date, but its impact on yield in fields infested with Macrophomina phaseolina (Tassi) Goid. is unknown. A 3-year study was conducted in M. phaseolina-infested fields to assess the effects of planting date (PD) on disease severity...

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Veröffentlicht in:Plant disease. - 1997. - 107(2023), 2 vom: 16. Feb., Seite 413-421
1. Verfasser: Mengistu, Alemu (VerfasserIn)
Weitere Verfasser: Kelly, Heather M, Read, Quentin D, Ray, Jeffrey D, Bellaloui, Nacer, Schumacher, Lesley A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Glycine max Macrophomina phaseolina area under the disease progress curve charcoal rot genotype resistance irrigation soybean yield
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520 |a Soybean (Glycine max [L.] Merr.) production is influenced by planting date, but its impact on yield in fields infested with Macrophomina phaseolina (Tassi) Goid. is unknown. A 3-year study was conducted in M. phaseolina-infested fields to assess the effects of planting date (PD) on disease severity and yield using eight genotypes, four of which are reported to be susceptible to charcoal rot (S), and four reported with moderate resistance (MR) to charcoal rot (CR). The genotypes were planted in early April, early May, and early June under irrigated and nonirrigated conditions. There was planting date by irrigation interaction for area under the disease progress curve (AUDPC) where May PD was significantly lower compared to April and June PDs in irrigated environments but not in nonirrigated environments. Correspondingly, yield in April PD was significantly lower than that of May and June. Interestingly, yield of S genotypes increased significantly with each subsequent PD, while yield of MR genotypes remained high across all three PDs. The interaction of genotypes by PD on yield revealed that the MR genotypes DT97-4290 and DS-880 had the greatest yields in May compared to April. While May PD had a decreased AUDPC and an increased yield across genotypes, the result of this research suggests that in fields infested with M. phaseolina, early May to early June planting coupled with appropriate cultivar selection provides maximum yield potential for western Tennessee and mid-southern soybean growers 
650 4 |a Journal Article 
650 4 |a Glycine max 
650 4 |a Macrophomina phaseolina 
650 4 |a area under the disease progress curve 
650 4 |a charcoal rot 
650 4 |a genotype resistance 
650 4 |a irrigation 
650 4 |a soybean 
650 4 |a yield 
700 1 |a Kelly, Heather M  |e verfasserin  |4 aut 
700 1 |a Read, Quentin D  |e verfasserin  |4 aut 
700 1 |a Ray, Jeffrey D  |e verfasserin  |4 aut 
700 1 |a Bellaloui, Nacer  |e verfasserin  |4 aut 
700 1 |a Schumacher, Lesley A  |e verfasserin  |4 aut 
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773 1 8 |g volume:107  |g year:2023  |g number:2  |g day:16  |g month:02  |g pages:413-421 
856 4 0 |u http://dx.doi.org/10.1094/PDIS-06-22-1329-RE  |3 Volltext 
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