Nematode parasites of sugarcane.

Ramouthar, P. V.; Bhuiyan, Shamsul A.

doi:10.1079/9781786391247.0658

Cited by 10 publications

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“…Considering that species of Meloidogyne and Pratylenchus are widespread in sugarcane fields and generally constitute the most damaging plant-parasitic nematodes (Ramouthar & Bhuiyan, 2018), the identification of soil properties associated with the population dynamics of these nematodes will contribute to the selection of agricultural practices that are candidates as components of an integrated management programme to control the damage caused by these pathogens on sugarcane. Thus, this study aimed to identify chemical and physical soil properties associated with the population densities of Meloidogyne spp.…”

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confidence: 99%

Soil abiotic factors associated with Meloidogyne spp. and Pratylenchus spp. populations in sugarcane

et al. 2020

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Summary Meloidogyne spp. and Pratylenchus spp. are the most damaging plant-parasitic nematodes to sugarcane and the knowledge of soil characteristics that influence the occurrence of these pathogens can be useful in their management. With the objective to investigate the relationships between soil variables and populations of Meloidogyne spp. and Pratylenchus spp. in sugarcane fields, root-zone soil and root samples were collected from 20 farms located in 16 municipalities in Alagoas state, Brazil. The multivariate regression tree technique was used to model the population density’s response variables for Meloidogyne spp. and Pratylenchus spp. in the root-zone soil and the roots according to sugarcane cultivars, soil organic matter, and soil chemical and physical variables. The results showed the existence of associations between soil factors, sugarcane cultivars and populations of nematodes. Root samples from soils with K > 37.79 mmolc dm−3, Al < 5.93 mmolc dm−3 and sugarcane ‘RB92579’, ‘SP753046’, ‘SP813250’ and ‘SP921631’ showed the lowest Pratylenchus spp. population densities. However, the lowest densities in the root-zone were found in soils with sum of bases > 1.91 mmolc dm−3, Ca:Mg ratio < 1:2 and soil organic matter < 10.7 g dm−3. The lowest population densities of Meloidogyne spp. in roots were associated with sugarcane ‘RB92579’, ‘RB93509’, ‘RB98710’, ‘SP791011’ and ‘SP921631’ and soil aggregate mean diam. > 0.48 mm, while root-zone densities were minimum in soils with P > 28.59 mg dm−3. This information should support further studies to investigate the effect of each variable on populations of Pratylenchus and Meloidogyne.

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confidence: 99%

Soil abiotic factors associated with Meloidogyne spp. and Pratylenchus spp. populations in sugarcane

et al. 2020

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“…10.1). The lesions become necrotic and turn purplish black, causing the root system to darken in colour (Ramouthar and Bhuiyan, 2018). It also significantly reduces the presence of fine root hairs (Blair, 2005).…”

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confidence: 99%

“…Although at least 20 species of Pratylenchus have been isolated from sugarcane worldwide, only four species (P. brachyurus, P. neglectus, P. scribneri and P. zeae) have been recorded in South Africa (SAPPNS). Of these, P. zeae is the most frequently encountered both worldwide (Ramouthar and Bhuiyan, 2018) and in South Africa (SAPPNS).…”

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confidence: 99%

Integrated Nematode Management

Solaimalai¹,

Anantharaju²,

Irulandi³

et al. 2020

Maize Crop

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“…(CHAVES et al, 2009;BELLÉ et al, 2014BELLÉ et al, , 2017. Danos causados por espécies de Pratylenchus em canaviais são relatados com níveis de até 52,4% para variedades suscetíveis, respondendo por 35% das perdas de produção (RAMOUTHAR; BHUIYAN, 2018).…”

Section: Introductionunclassified

Caracterização Morfológica E Morfométrica De Espécies De Pratylenchus Em Áreas De Cultivo De Cana-De-Açúcar Do Estado De Pernambuco

Jesus¹,

Pedrosa²,

Reis³

et al. 2023

Ciências Agrárias: Limites E Potencialidades Em Pesquisa

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Os nematoides das lesões radiculares Pratylenchus spp. apresentam ampla distribuição geográfica e grande número de plantas hospedeiras. Esses endoparasitas migradores são encontrados associados à cana-de-açúcar em regiões canavieiras diversas do mundo causando doenças que induzem permanentes perdas em produtividade. A respeito deste gênero ser frequentemente relatado em áreas de baixa produtividade no nordeste do Brasil, estudos sobre espécies ocorrentes são poucos e restritos a um número muito baixo de amostras e áreas. O presente estudo teve como objetivo avaliar morfológica e morfometricamente espécies de Pratylenchus de diferentes regiões do estado de Pernambuco cultivadas com cana-de-açúcar. Amostras compostas de solo e de raízes foram coletadas de 30 fazendas de três usinas do Estado de Pernambuco. As características morfológicas externas do corpo dos nematoides das diferentes populações estudadas apresentaram valor diagnóstico compatível com aqueles obtidos na literatura nematológica, demonstrando a predominância de Pratylenchus zeae (87%) na região. Populações atípicas de Pratylenchus também foram encontradas.

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Nematode parasites of sugarcane.

Cited by 10 publications

References 0 publications

Soil abiotic factors associated with Meloidogyne spp. and Pratylenchus spp. populations in sugarcane

Soil abiotic factors associated with Meloidogyne spp. and Pratylenchus spp. populations in sugarcane

Integrated Nematode Management

Caracterização Morfológica E Morfométrica De Espécies De Pratylenchus Em Áreas De Cultivo De Cana-De-Açúcar Do Estado De Pernambuco

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