Effect of crop rotation on soil population densities of Fusarium solani and Heterodera glycines and on the development of sudden death syndrome of soybean

Rupe, J. C.; Robbins, R. T.; Gbur, E. E.

doi:10.1016/s0261-2194(97)00031-8

Cited by 74 publications

(44 citation statements)

References 12 publications

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“…Therefore, examination of how different sorghum genotypes can modify populations of fungi and oomycetes, and bacteria may provide understanding of a mechanism of protection for young sorghum plants. Sorghum can be used in rotations, as a cover crop or as a preplant treatment because of its potentially negative impacts on weeds (reviewed in Anaya 1999) and plant parasitic fungi (Singh et al 1990) and nematodes (Rupe et al 1997). Cycling may be a way to enhance these effects (Raaijmakers and Weller 2001;Mazzola and Gu 2002;Mazzola et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Effect of sorghum seedlings, and previous crop, on soil fluorescent Pseudomonas spp.

2008

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Hypotheses in which sorghum seedlings [Sorghum bicolor (L.) Moench] of different genotypes will differentially modify soil microorganisms and will affect subsequent planting of wheat (Triticum aestivum L.) seedlings, were tested. Wheat cultivar Lewjain, and sorghum genotypes Redlan and RTx433, were planted into soils previously planted with wheat or sorghum in growth chamber experiments. Total culturable fungi and oomycetes, and fluorescent Pseudomonas spp. numbers (cfu) were determined. Pseudomonads were screened for hydrogen cyanide (HCN) production, for the presence of the phlD gene for 2,4-diacetylphloroglucinol production (Phl) and for a region of the operon involved in phenazine-1-carboxylic acid (PCA) production. Pasteurized soils were inoculated with rifampicin-marked strains of Pseudomonas fluorescens then planted with Lewjain, Redlan and RTx433 to assess rhizosphere and soil colonization. Effects of plant species, sorghum genotype and previous crop on culturable fungi and oomycetes, and pseudomonad numbers (cfu g −1 soil) were statistically significant. Soils planted with RTx433 or Lewjain had greater numbers of fungal cfu than soils planted with Redlan. When Lewjain seedlings were grown in soil previously planted with RTx433, there were greater numbers of fungal cfu than when Lewjain was planted into Redlan soil. Wheat planted into wheat soil resulted in statistically significantly fewer numbers of pseudomonads than when planted into sorghum soil. Overall, percentages of HCN-producing pseudomonads increased, especially when wheat seedlings were planted in wheat soil. For most treatments, percent of isolates with Phl declined, except when Redlan was planted into Redlan soil, which resulted in increased Phl isolates. When rifampicin-marked P. fluorescens isolates were applied to pasteurized soil, sorghum seedlings sustained rhizosphere and soil populations similar to those on wheat. Sorghum genotypes may differ in associations with soil microorganisms, Plant Soil

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Section: Discussionmentioning

confidence: 99%

Effect of sorghum seedlings, and previous crop, on soil fluorescent Pseudomonas spp.

2008

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“…Costamilan et al (1999) observed that it took 27 months to completely degrade the soybean residues in Southern Brazil. In a different study, Saraiva & Torres (2000) compared the effect of tillage and no-tillage systems on soybean degradation and reported that mineralization was faster under tillage with a reduction in biomass of 65.8% and 60.9% for 1998 and 1999, respectively. The effect of crop rotation on soil population of Fusarium solani was evaluated by Rupe et al (1997). They concluded that averaged over all years, population of F. solani was significantly lower when sorghum or wheat were grown than with soybean or fescue.…”

Section: Introductionmentioning

confidence: 99%

Survival of pathogens on soybean debris under no-tillage and conventional tillage systems

Almeida

Saraiva

Farias

et al. 2001

Pesq. agropec. bras.

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A study was conducted in the subtropical area of Southern Brazil to determine the survival of pathogens in soybean residues under conventional and no-tillage cultivation systems from March to September of 1998 and 1999. The pathogens most frequently isolated were Colletotrichum truncatum, Phomopsis spp., Cercospora kikuchii, Fusarium spp., Macrophomina phaseolina, and Rhizoctonia solani. Other fungi isolated were Myrothecium roridum, Penicillium sp., Chaetomium sp., Epicoccum sp., Corynespora cassiicola and Trichoderma sp. The percent of survival of each pathogen varied according to the month and the year. Survival of C. truncatum, Phomopsis spp. and C. kikuchii were significantly reduced (p<0.05) from the first to the last evaluation either on buried debris or maintained on the soil surface. On the other hand, M. phaseolina and Fusarium spp. were either not affected or favored by burying the debris. The frequency of recovery of Fusarium spp. increased specially in debris kept under the soil. The loss of biomass, measured by debris weight along the period of this study, showed a reduction of 44.4% in the conventional system and 34.9% in the no-tillage system in 1998, when rain was better distributed. In 1999, the reduction was 48.2% and 39.0% for the conventional and no-tillage system, respectively.Index terms: cultivation, crop residues, degradation, biomass, plant diseases. Sobrevivência de patógenos em restos de cultura de soja mantidos em sistema de semeadura direta e convencionalResumo Avaliou-se a sobrevivência de patógenos em restos de soja, em sistema de semeadura direta e convencional, entre março e setembro de 1998 e 1999, em Londrina, PR. Termos para indexação: cultivo, resíduos de colheita, degradação, biomassa, doenças das plantas.

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“…In the present work, the disease was not detected in soybean rotated with maize; conversely, in soybean monoculture the incidence was markedly high. According to Rupe et al (1997), soybean rotation with non-host crops, such as maize, sorghum or wheat, reduced population densities of Fusarium sp., compared with continuous soybean. However, Kolander et al (2012) stated that corn, wheat, ryegrass, pigweed, and lambsquarters do not develop symptoms of root necrosis by F. virguliforme, however these species seem to be asymptomatic hosts because quantities of pathogen DNA detected in inoculated roots were similar to quantities detected in inoculated soybean roots.…”

Section: Disease Incidence and Crop Yieldmentioning

confidence: 99%

The effect of crop sequences on soil microbial, chemical and physical indicators and its relationship with soybean sudden death syndrome (complex of Fusarium species)

Brandán

Arzeno

Huidobro

et al. 2013

Span. j. agric. res.

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The effect of crop sequences on soil quality indicators and its relationship with sudden death syndrome (SDS, a complex of Fusarium species) was evaluated by physical, chemical, biochemical and molecular techniques. Regarding physical aspects, soybean/maize and maize monoculture exhibited the highest stable aggregate level, with values 41% and 43% higher than in soybean monoculture, respectively, and 133% higher than in bean monoculture. Bulk density (BD) was higher in soybean monoculture, being 4% higher than in bean monoculture. The chemical parameters organic matter, total N, P, K, Mg, Ca, and water holding capacity also indicated that soybean/maize and maize monoculture improved soil quality. Fungal and bacterial community fingerprints generated using Terminal Restriction Fragment Length Polymorphism analysis of intergenic transcribed spacer regions of rRNA genes and 16S rRNA genes, respectively, indicated a clear separation between the rotations. Fatty acid profiles evaluated by FAME showed that bean monoculture had higher biomass of Gram (+) bacteria and stress indicators than maize monoculture, while the soybean/maize system showed a significant increase in total microbial biomass (total FAMEs content) in comparison with soybean and bean monoculture. The incidence of SDS (Fusarium crassistipitatum) was markedly higher (15%) under soybean monoculture than when soybean was grown in rotation with maize. In the present work, soil microbial properties were improved under soybean/maize relative to continuous soybean. The improvement of soil health was one of the main causes for the reduction of disease pressure and crop yield improvement due to the benefits that crop rotation produces for soil quality.

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Effect of crop rotation on soil population densities of Fusarium solani and Heterodera glycines and on the development of sudden death syndrome of soybean

Cited by 74 publications

References 12 publications

Effect of sorghum seedlings, and previous crop, on soil fluorescent Pseudomonas spp.

Effect of sorghum seedlings, and previous crop, on soil fluorescent Pseudomonas spp.

Survival of pathogens on soybean debris under no-tillage and conventional tillage systems

The effect of crop sequences on soil microbial, chemical and physical indicators and its relationship with soybean sudden death syndrome (complex of Fusarium species)

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