Interactions between Heterodera avenae and Pratylenchus neglectus on Wheat

In a long-term field experiment, differential population densities of Heterodera avenae were produced by frequent cropping with resistant (cv. Panema) or susceptible (cv. Peniarth) oat. The two oat cultivars were equally good hosts of Pratylenchus neglectus in a glass house experiment with field soi...

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Veröffentlicht in:Journal of nematology. - 1969. - 26(1994), 3 vom: 10. Sept., Seite 336-44
1. Verfasser: Lasserre, F (VerfasserIn)
Weitere Verfasser: Rivoal, R, Cook, R
Format: Aufsatz
Sprache:English
Veröffentlicht: 1994
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Avena sativa Heterodera avenae Pratylenchus neglectus Triticum aestivum integrated management interspecific interaction long-term experiment nematode pathogenicity mehr... population dynamics resistance split-root
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520 |a In a long-term field experiment, differential population densities of Heterodera avenae were produced by frequent cropping with resistant (cv. Panema) or susceptible (cv. Peniarth) oat. The two oat cultivars were equally good hosts of Pratylenchus neglectus in a glass house experiment with field soil. On wheat crops grown after oats in field experiments, P. neglectus population densities in roots were higher in plots where H. avenae had been controlled than in plots with moderate infestations (40 H. avenae eggs/g soil). The field observations indicated that the reduction in population densities of P. neglectus coincided with the development in roots of sedentary stages of the cyst nematode. Evidence for an indirect effect of H. avenae on P. neglectus was found in vitro in a split-root experiment. In the same field, grain yields of two wheat cultivars susceptible or resistant to H. avenae, but both susceptible to P. neglectus, was not reduced by P. neglectus. Alternation of H. avenae resistant and susceptible cultivars is a possible way of exploiting the inverse relationship between these nematodes, whilst controlling cyst nematode -populations in intensive cereal production systems 
650 4 |a Journal Article 
650 4 |a Avena sativa 
650 4 |a Heterodera avenae 
650 4 |a Pratylenchus neglectus 
650 4 |a Triticum aestivum 
650 4 |a integrated management 
650 4 |a interspecific interaction 
650 4 |a long-term experiment 
650 4 |a nematode 
650 4 |a pathogenicity 
650 4 |a population dynamics 
650 4 |a resistance 
650 4 |a split-root 
700 1 |a Rivoal, R  |e verfasserin  |4 aut 
700 1 |a Cook, R  |e verfasserin  |4 aut 
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