Effect of Temperature on Virulence of<i>Rhizoctonia solani</i>and Other<i>Rhizoctonia</i>on Potato

Carling, D. E.; Leiner, R. H.

doi:10.1094/phyto-80-930

Cited by 64 publications

(48 citation statements)

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“…Growth-promoting rhizobacteria (Azospirillum, Azotobacter, Bacillus, Clostridium, and Pseudomonas fluorescens-putida Migula) may induce energy stress on R. solani (Gupta et al, 1995), through liberation of carbon compounds from rhizobacteria-colonized sclerotia. Direct effects of amendments, antagonists, and other factors such as soil temperature, moisture, pH, texture, and salt concentration, are also associated with the success or failure of amendments in suppressing diseases (Carling & Leiner, 1990;Kataria & Grover, 1987;Kousik et al, 1995;Ogle et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Dried powders of velvetbean and pine bark added to soil reduce Rhizoctonia solani-induced disease on soybean

Blum

Rodrı́guez-Kábana

2006

Fitopatol. bras.

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Diseases induced by Rhizoctonia solani, like damping-off and root and stem rot on soybean (Glycine max), are a serious problem around the world. The addition of some organic material to soil is an alternative control for these diseases. In this study, benzaldehyde and dried powders of kudzu (Pueraria lobata), velvetbean or mucuna (Mucuna deeringiana), and pine bark (Pinus spp.) were used in an attempt to improve soybean plant growth and to reduce the disease R. solani (AG-4) causes on soybean. Benzaldehyde (0.1-0.4 mL/kg of soil) and velvetbean (25-100 g/kg) significantly (P ≤ 0.05) reduced mycelial growth of R. solani in laboratory tests. In greenhouse experiments, the percentage of non-diseased plants was higher in treatments with pine bark and velvetbean (50-100 g/kg). In soil treated with kudzu (r 2 =0.91) or velvetbean (r 2 =0.94), increasing rates of these amendments tended to increase plant fresh mass. In microplot field conditions, soil amended with velvetbean (r 2 =0.85) and pine-bark (r 2 =0.61) significantly reduced disease on soybean. Numbers of Bacillus megaterium (r 2 =0.87) and Trichoderma hamatum (r 2 =0.92) and hydrolysis of fluorescein diacetate (r 2 =0.91) were higher in soil amended with increasing rates of velvetbean, indicating an increase in microbial activity. From this study it is concluded that dried powders of velvetbean and pine bark added to soil can reduce Rhizoctonia-induced disease on soybean.Additional keywords: Glycine max, Mucuna deeringiana, damping-off, microbial activity. RESUMOPós secos de mucuna e casca de pinus adicionados ao solo reduzem a doença causada por Rhizoctonia solani em soja.As doenças em soja (Glycine max) causadas por Rhizoctonia solani são um sério problema ao redor do mundo. A incorporação ao solo de resíduos orgânicos é uma alternativa para o controle destas doenças. Neste estudo, benzaldeido e pós-secos de kudzu (Pueraria lobata), mucuna (Mucuna deeringiana) e casca de pinus (Pinus spp.) foram usados com o objetivo de melhorar o crescimento de plantas de soja e de diminuir a doença causada por R. solani (AG-4). Benzaldehyde (0,1-0,4 mL/kg de solo) e mucuna (25-100 g/kg) reduziram significativamente (P ≤ 0.05) o crescimento micelial de R. solani em experimentos de laboratório. Em experimentos conduzidos em casa de vegetação a porcentagem de plantas sobreviventes foi maior em solo com casca de pinus e mucuna (50-100 g/kg

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Section: Discussionmentioning

confidence: 99%

Dried powders of velvetbean and pine bark added to soil reduce Rhizoctonia solani-induced disease on soybean

Blum

Rodrı́guez-Kábana

2006

Fitopatol. bras.

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“…AG-1 and AG-2 cause least damage to sprouts (Carling & Leiner, 1990a). Isolates of AG-2 were collected from sclerotia on potato tubers and from hymenia and lesions on stems (Chand & Logan, 1984).…”

Section: Anastomosis Groups Of Rhizoctonia Solanimentioning

confidence: 99%

“…Isolates of AG-2 were collected from sclerotia on potato tubers and from hymenia and lesions on stems (Chand & Logan, 1984). AG-3 is by far the most aggressive AG on potato, and indiscriminately attacks roots, stolons and subterranean portions of the main stem (Carling & Leiner, 1990a;Bains & Bisht, 1995). Although AG-3 is virulent across a broad range of temperatures (5 to 25 °C), it is particularly aggressive at 10 to 15 °C, where other AGs generally become less damaging (Carling & Leiner, 1990a).…”

Section: Anastomosis Groups Of Rhizoctonia Solanimentioning

confidence: 99%

“…AG-3 is by far the most aggressive AG on potato, and indiscriminately attacks roots, stolons and subterranean portions of the main stem (Carling & Leiner, 1990a;Bains & Bisht, 1995). Although AG-3 is virulent across a broad range of temperatures (5 to 25 °C), it is particularly aggressive at 10 to 15 °C, where other AGs generally become less damaging (Carling & Leiner, 1990a). On average, isolates from hymenia were significantly more virulent than isolates from lesions, but neither differed significantly in virulence from isolates obtained from sclerotia or soil (Carling & Leiner, 1990b;Hill & Anderson, 1989).…”

Section: Anastomosis Groups Of Rhizoctonia Solanimentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Overview on Black Scurf of Potato

Kumar¹,

Singh²,

Kumar³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…In the Netherlands, potatoes are planted from approximately mid-March until early May, when soil temperatures range from 8 to 13ЊC. At these temperatures, infection of potato by R. solani is greatest (Bolkan et al, 1974;Hide & Firmager, 1989;Carling & Leiner, 1990).…”

Section: Introductionmentioning

confidence: 99%

**Effects of the springtail Folsomia fimetaria and the nematode Aphelenchus avenae on Rhizoctonia solani stem infection of potato at temperatures of 10 and 15°C**

Lootsma¹,

Schölte²

1997

Plant Pathology

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Effects of mycophagous soil mesofauna on Rhizoctonia solani infection of potato stems were investigated in two experiments carried out in growth chambers at 10 and 15°C. The springtail Folsomia fimetaria and the nematode Aphelenchus avenae were selected as organisms suppressive to R. solani. Reduction in Rhizoctonia stem infection by mycophagous soil mesofauna was equally effective at 10 and 15°C. F. fimetaria tended to be more effective than A. avenae, but the best control was obtained when both organisms were present in the soil at high densities.

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Effect of Temperature on Virulence ofRhizoctonia solaniand OtherRhizoctoniaon Potato

Cited by 64 publications

References 0 publications

Dried powders of velvetbean and pine bark added to soil reduce Rhizoctonia solani-induced disease on soybean

Dried powders of velvetbean and pine bark added to soil reduce Rhizoctonia solani-induced disease on soybean

A Comprehensive Overview on Black Scurf of Potato

**Effects of the springtail Folsomia fimetaria and the nematode Aphelenchus avenae on Rhizoctonia solani stem infection of potato at temperatures of 10 and 15°C**

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