Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla
Root pathogens and parasites are an increasing problem in agricultural and horticultural production. The soil borne pathogen Plasmodiophora brassicae is one of the major pathogens in oilseed rape production and the plant parasitic nematodes (PPNs), Pratylenchus penetrans and Meloidogyne hapla inf...
| Autor principal: | |
|---|---|
| Formato: | H2 |
| Lenguaje: | Inglés sueco |
| Publicado: |
SLU/Dept. of Plant Breeding (from 130101)
2022
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| Materias: |
| _version_ | 1855572943714648064 |
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| author | Lundborg, Izabella |
| author_browse | Lundborg, Izabella |
| author_facet | Lundborg, Izabella |
| author_sort | Lundborg, Izabella |
| collection | Epsilon Archive for Student Projects |
| description | Root pathogens and parasites are an increasing problem in agricultural and horticultural
production. The soil borne pathogen Plasmodiophora brassicae is one of the major pathogens
in oilseed rape production and the plant parasitic nematodes (PPNs), Pratylenchus penetrans
and Meloidogyne hapla infest important crops such as carrot, potato and strawberry. In
common, both of the nematodes and Plasmodiophora brassicae strongly depend on host
plants for reproduction, and are difficult to control. There is a need for clever integration of
multi-tactic strategies to prevent their dissemination. In the present study, cover crops were
examined in bioassays for their potential to decrease the population density of both
nematodes and infection level of Plasmodiophora brassicae. The examined cover crops in
the Plasmodiophora brassicae trial Lolium perenne and Lupinus angustifolius, revealed
medium high disease severity indices (DSIs) on the indicator plant Brassica napus. However,
no significant decrease was found in comparison to plant free soil (fallow). In the PPN trials,
the cover crop species Avena strigosa and Lupinus angustifolius were investigated. Promising
results were obtained for A. strigosa indicating high resistance to M. hapla and very efficient
suppression of Pratylenchus penetrans in infested soil. Lupinus angustifolius was found to be
susceptible to M. hapla and to be a poor host species for Pratylenchus penetrans. Potentially
A. strigosa could be recommended in crop rotation where both nematode species are
challenging the production of susceptible cultivars. Lupinus angustifolius should be avoided
in crop rotation where M. hapla is present but may be used in crop rotation where
Pratylenchus penetrans is present to prevent excessive multiplication. Further studies are
needed to determine the potential of Lupinus angustifolius, as contradictory results have been
reported from experiments with different varieties of the cover crop. |
| format | H2 |
| id | RepoSLU17729 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés swe |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | SLU/Dept. of Plant Breeding (from 130101) |
| publisherStr | SLU/Dept. of Plant Breeding (from 130101) |
| record_format | eprints |
| spelling | RepoSLU177292022-05-20T01:04:25Z Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla Mellangrödor i syfte för växtskydd : Mellangrödor för kontroll av rot patogena Plasmodiophora brassicae och rot parasitära Pratylenchus penetrans och Meloidogyne hapla Lundborg, Izabella Clubroot disease plant parasitic nematodes Lupinus angustifolius Avena strigosa Phacelia tanacetifolia Lolium perenne Solanum lycopersicum Brassica napus Root pathogens and parasites are an increasing problem in agricultural and horticultural production. The soil borne pathogen Plasmodiophora brassicae is one of the major pathogens in oilseed rape production and the plant parasitic nematodes (PPNs), Pratylenchus penetrans and Meloidogyne hapla infest important crops such as carrot, potato and strawberry. In common, both of the nematodes and Plasmodiophora brassicae strongly depend on host plants for reproduction, and are difficult to control. There is a need for clever integration of multi-tactic strategies to prevent their dissemination. In the present study, cover crops were examined in bioassays for their potential to decrease the population density of both nematodes and infection level of Plasmodiophora brassicae. The examined cover crops in the Plasmodiophora brassicae trial Lolium perenne and Lupinus angustifolius, revealed medium high disease severity indices (DSIs) on the indicator plant Brassica napus. However, no significant decrease was found in comparison to plant free soil (fallow). In the PPN trials, the cover crop species Avena strigosa and Lupinus angustifolius were investigated. Promising results were obtained for A. strigosa indicating high resistance to M. hapla and very efficient suppression of Pratylenchus penetrans in infested soil. Lupinus angustifolius was found to be susceptible to M. hapla and to be a poor host species for Pratylenchus penetrans. Potentially A. strigosa could be recommended in crop rotation where both nematode species are challenging the production of susceptible cultivars. Lupinus angustifolius should be avoided in crop rotation where M. hapla is present but may be used in crop rotation where Pratylenchus penetrans is present to prevent excessive multiplication. Further studies are needed to determine the potential of Lupinus angustifolius, as contradictory results have been reported from experiments with different varieties of the cover crop. Rot patogener och parasiter är ett ökande problem i agrikulturell och hortikulturell produktion. Den jordburna patogen Plasmodiophora brassicae är en av de vanligaste patogenerna i raps produktion och de växtparasitära nematoderna (PPNs), Pratylenchus penetrans och Meloidogyne hapla angriper betydelsefulla grödor som morot, potatis och jordgubbar. Gemensamt för nematoderna och Plasmodiophora brassicae är att de är beroende av värdväxter för reproduktion och är svåra att kontrollera. Det finns ett behov av smart integrering av multi-taktiska strategier för att förhindra spridning. I den aktuella studien undersöktes mellangrödor i biotester för deras förmåga att potentiellt reducera de utvalda nematod arterna och Plasmodiophora brassicae. De undersökta mellangrödorna i Plasmodiophora brassicae försöket, Lolium perenne och Lupinus angustifolius, visade medelhöga sjukdomsindex (DSIs) på indikatorväxten Brassica napus. Ingen signifikant skillnad visades dock i jämförelse med plantfri jord (träda). I experimenten med de växtprarasitära nematoderna undersöktes mellangrödorna Avena strigosa och Lupinus angustifolius. Lovande resultat erhölls för A. strigosa som visade hög resistens mot M. hapla och mycket effektivt reducering av Pratylenchus penetrans i infekterad jord. Lupinus angustifolius visade sig vara mottaglig för M. hapla och vara en dålig-värdväxt för Pratylenchus penetrans. Potentiellt kan A. strigosa rekommenderas i växtföljder där båda nematodarterna utmanar produktionen av mottagliga grödor. Lupinus angustifolius bör undvikas i växtföljd där M. hapla förekommer men kan användas i växtföljder där Pratylenchus penetrans förekommer för att motverka förökning. Ytterligare studier behövs för att fastställa potentialen för Lupinus angustifolius, eftersom motsägelsefulla resultat har rapporterats beroende på sort. SLU/Dept. of Plant Breeding (from 130101) 2022 H2 eng swe https://stud.epsilon.slu.se/17729/ |
| spellingShingle | Clubroot disease plant parasitic nematodes Lupinus angustifolius Avena strigosa Phacelia tanacetifolia Lolium perenne Solanum lycopersicum Brassica napus Lundborg, Izabella Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title | Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora
brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title_full | Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora
brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title_fullStr | Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora
brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title_full_unstemmed | Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora
brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title_short | Cover crops for plant protection : Cover crops for control of root pathogenic Plasmodiophora
brassicae and the root parasitic nematodes Pratylenchus penetransand Meloidogyne hapla |
| title_sort | cover crops for plant protection : cover crops for control of root pathogenic plasmodiophora
brassicae and the root parasitic nematodes pratylenchus penetransand meloidogyne hapla |
| topic | Clubroot disease plant parasitic nematodes Lupinus angustifolius Avena strigosa Phacelia tanacetifolia Lolium perenne Solanum lycopersicum Brassica napus |