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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
19/08/1997 |
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Data da última atualização: |
19/08/1997 |
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Autoria: |
ZAMBOLIM, L. |
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Título: |
Response of soybean to the interactions among three root infecting fungi, a vesicular-arbuscular mycorrhizal fungus and Rhizobium japonicum. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Florida: University of Florida, 1980. |
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Páginas: |
95p. |
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Série: |
Tese de Doutorado. |
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Idioma: |
Inglês |
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Notas: |
Tese de Doutorado. Orientada por: Norman C.Schenck. |
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Conteúdo: |
Interaction among Macrophomina phaseolina, Rhizoctonia solani, Fusarium solani and two symbiotic organisms, Glomus mosseae and Rhizobium japonicum, and their effect on the severity of soybean root and stem rot were investigated by exposing nodulated and non-nodulated seedlings to defined inoculum densities of the various organisms in greenhouse tests. Autoclaved or non-autoclaved Arredondo fine sand with 91 ppm of phosphorus and pH 6.7 was thoroughly mixed with spores or resting structures of the fungi. The mycorrhizal fungus was added at 500 chlamydospores per pot in one layer 5 cm below the seeds. Rhizobium japonicum cells were inoculated directly on the seeds at 5mg/g of seed. The percentage of infected roots, diseased plants, or both increased with increasing levels of inoculum of each fungus. The concentrations at whitch 50% of the roots were infected (ED50) by M. phaseolina were approximately 20x10x10x10 and 150x10x10x10 sclerotia per kilogram of autoclaved and non-autoclaved soil, respectively. For R.solani the ED50s were 1.0x10x10x10 sclerotia per kilogramof autoclaved and non-autoclaved soil, respectively. Macrophomina phaseolina at 40x10x10x10 sclerotia per kilogram of soil interacted additively with R.solani at 1.0x10x10x10 sclerotia per kilogram of soil and with F.SOLANI AT 3.000X10X10X10 chlamydospores per kilogram of soil to increase root and stem rot and to reduce the plant growth response. Root and shoot weight and plant height were reduce more at 45 than at 25 days after planting, and soybean.... MenosInteraction among Macrophomina phaseolina, Rhizoctonia solani, Fusarium solani and two symbiotic organisms, Glomus mosseae and Rhizobium japonicum, and their effect on the severity of soybean root and stem rot were investigated by exposing nodulated and non-nodulated seedlings to defined inoculum densities of the various organisms in greenhouse tests. Autoclaved or non-autoclaved Arredondo fine sand with 91 ppm of phosphorus and pH 6.7 was thoroughly mixed with spores or resting structures of the fungi. The mycorrhizal fungus was added at 500 chlamydospores per pot in one layer 5 cm below the seeds. Rhizobium japonicum cells were inoculated directly on the seeds at 5mg/g of seed. The percentage of infected roots, diseased plants, or both increased with increasing levels of inoculum of each fungus. The concentrations at whitch 50% of the roots were infected (ED50) by M. phaseolina were approximately 20x10x10x10 and 150x10x10x10 sclerotia per kilogram of autoclaved and non-autoclaved soil, respectively. For R.solani the ED50s were 1.0x10x10x10 sclerotia per kilogramof autoclaved and non-autoclaved soil, respectively. Macrophomina phaseolina at 40x10x10x10 sclerotia per kilogram of soil interacted additively with R.solani at 1.0x10x10x10 sclerotia per kilogram of soil and with F.SOLANI AT 3.000X10X10X10 chlamydospores per kilogram of soil to increase root and stem rot and to reduce the plant growth response. Root and shoot weight and plant height were reduce more at 45 than at ... Mostrar Tudo |
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Palavras-Chave: |
Fungos. |
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Thesagro: |
Fusarium Solani; Glomus Mosseae; Macrophomina Phaseolina; Micorriza Vesicular Arbuscular; Raiz; Rhizobium Japonicum; Rhizoctonia Solani; Soja. |
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Thesaurus Nal: |
fungi; roots; soybeans; vesicular arbuscular mycorrhizae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02444nam a2200301 a 4500
001 1622218
005 1997-08-19
008 1980 bl uuuu m 00u1 u #d
100 1 $aZAMBOLIM, L.
245 $aResponse of soybean to the interactions among three root infecting fungi, a vesicular-arbuscular mycorrhizal fungus and Rhizobium japonicum.
260 $aFlorida: University of Florida$c1980
300 $a95p.
490 $aTese de Doutorado.
500 $aTese de Doutorado. Orientada por: Norman C.Schenck.
520 $aInteraction among Macrophomina phaseolina, Rhizoctonia solani, Fusarium solani and two symbiotic organisms, Glomus mosseae and Rhizobium japonicum, and their effect on the severity of soybean root and stem rot were investigated by exposing nodulated and non-nodulated seedlings to defined inoculum densities of the various organisms in greenhouse tests. Autoclaved or non-autoclaved Arredondo fine sand with 91 ppm of phosphorus and pH 6.7 was thoroughly mixed with spores or resting structures of the fungi. The mycorrhizal fungus was added at 500 chlamydospores per pot in one layer 5 cm below the seeds. Rhizobium japonicum cells were inoculated directly on the seeds at 5mg/g of seed. The percentage of infected roots, diseased plants, or both increased with increasing levels of inoculum of each fungus. The concentrations at whitch 50% of the roots were infected (ED50) by M. phaseolina were approximately 20x10x10x10 and 150x10x10x10 sclerotia per kilogram of autoclaved and non-autoclaved soil, respectively. For R.solani the ED50s were 1.0x10x10x10 sclerotia per kilogramof autoclaved and non-autoclaved soil, respectively. Macrophomina phaseolina at 40x10x10x10 sclerotia per kilogram of soil interacted additively with R.solani at 1.0x10x10x10 sclerotia per kilogram of soil and with F.SOLANI AT 3.000X10X10X10 chlamydospores per kilogram of soil to increase root and stem rot and to reduce the plant growth response. Root and shoot weight and plant height were reduce more at 45 than at 25 days after planting, and soybean....
650 $afungi
650 $aroots
650 $asoybeans
650 $avesicular arbuscular mycorrhizae
650 $aFusarium Solani
650 $aGlomus Mosseae
650 $aMacrophomina Phaseolina
650 $aMicorriza Vesicular Arbuscular
650 $aRaiz
650 $aRhizobium Japonicum
650 $aRhizoctonia Solani
650 $aSoja
653 $aFungos
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| 1. |  | SILVA, R. F.; REZENDE, C. M.; SANTANA, H. C. D.; VIEIRA, R. F.; SANTOS, M. C. S.; BIZZO, H. R. Scents from brazilian cerrado: chemical composition of the essential oil from the leaves of Hyptis lythroides Pohl ex Benth. (Lamiaceae). In: INTERNATIONAL SYMPOSIUM ON ESSENTIAL OILS, 44., 2013, Budapest. Book of abstracts. [S.l.: s.n.], 2013. p. 123.| Tipo: Resumo em Anais de Congresso |
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