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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
19/02/2015 |
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Data da última atualização: |
19/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, P. B.; GRANADA, C. E.; AMBROSINI, A.; MOREIRA, F.; SOUZA, R.; PASSOS, J. F. M.; ARRUDA, L.; PASSAGLIA, L. M. P. |
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Título: |
A model to explain plant growth promotion traits: A multivariate analysis of 2,211 bacterial isolates. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
PLoS ONE, Itália, v. 9, n. 12, p. 1-25, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Plant growth-promoting bacteria can greatly assist sustainable farming by improving plant health and biomass while reducing fertilizer use. The plantmicroorganism-environment interaction is an open and complex system, and despite the active research in the area, patterns in root ecology are elusive. Here, we simultaneously analyzed the plant growth-promoting bacteria datasets from seven independent studies that shared a methodology for bioprospection and phenotype screening. The soil richness of the isolate?s origin was classified by a Principal Component Analysis. A Categorical Principal Component Analysis was used to classify the soil richness according to isolate?s indolic compound production, siderophores production and phosphate solubilization abilities, and bacterial genera composition. Multiple patterns and relationships were found and verified with nonparametric hypothesis testing. Including niche colonization in the analysis, we proposed a model to explain the expression of bacterial plant growthpromoting traits according to the soil nutritional status. Our model shows that plants favor interaction with growth hormone producers under rich nutrient conditions but favor nutrient solubilizers under poor conditions. We also performed several comparisons among the different genera, highlighting interesting ecological interactions and limitations. Our model could be used to direct plant growthpromoting bacteria bioprospection and metagenomic sampling. |
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Palavras-Chave: |
Bioprospection; PCA; PGPB. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02155naa a2200241 a 4500
001 1123068
005 2015-02-19
008 2014 bl uuuu u00u1 u #d
100 1 $aCOSTA, P. B.
245 $aA model to explain plant growth promotion traits$bA multivariate analysis of 2,211 bacterial isolates.$h[electronic resource]
260 $c2014
520 $aPlant growth-promoting bacteria can greatly assist sustainable farming by improving plant health and biomass while reducing fertilizer use. The plantmicroorganism-environment interaction is an open and complex system, and despite the active research in the area, patterns in root ecology are elusive. Here, we simultaneously analyzed the plant growth-promoting bacteria datasets from seven independent studies that shared a methodology for bioprospection and phenotype screening. The soil richness of the isolate?s origin was classified by a Principal Component Analysis. A Categorical Principal Component Analysis was used to classify the soil richness according to isolate?s indolic compound production, siderophores production and phosphate solubilization abilities, and bacterial genera composition. Multiple patterns and relationships were found and verified with nonparametric hypothesis testing. Including niche colonization in the analysis, we proposed a model to explain the expression of bacterial plant growthpromoting traits according to the soil nutritional status. Our model shows that plants favor interaction with growth hormone producers under rich nutrient conditions but favor nutrient solubilizers under poor conditions. We also performed several comparisons among the different genera, highlighting interesting ecological interactions and limitations. Our model could be used to direct plant growthpromoting bacteria bioprospection and metagenomic sampling.
653 $aBioprospection
653 $aPCA
653 $aPGPB
700 1 $aGRANADA, C. E.
700 1 $aAMBROSINI, A.
700 1 $aMOREIRA, F.
700 1 $aSOUZA, R.
700 1 $aPASSOS, J. F. M.
700 1 $aARRUDA, L.
700 1 $aPASSAGLIA, L. M. P.
773 $tPLoS ONE, Itália$gv. 9, n. 12, p. 1-25, 2014.
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
25/11/2021 |
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Data da última atualização: |
25/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SOUZA, M.; MÜLLER JÚNIOR, V.; KURTZ, C.; VENTURA, B. S.; LOURENZI, C. R.; LAZZARI, C. J. R.; FERREIRA, G. W.; BRUNETTO, G.; LOSS, A.; COMIN, J. J. |
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Título: |
Soil chemical properties and yield of onion crops grown for eight years under no-tillage system with cover crops. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Soil & Tillage Research, Amsterdam, Holanda, n. 208, p. 1-8, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
The use of cover crops in no-tillage systems can change soil chemical properties and crop yield over time. Studies
using cover crops without the application of pesticides and soluble mineral fertilizers in no-tillage systems are
important to reduce production costs, the need for mechanization, and to improve nutrient cycling and crop
yield. The study aimed to evaluate how the use of different cover crops and the amount of dry matter produced
by such species affect soil chemical properties and onion yield. Onion crops were grown for eight years without
the use of pesticides and soluble mineral fertilizers in no-tillage system. The experiment was conducted from
2009 to 2016 in Ituporanga, state of Santa Catarina (SC), Brazil. The following treatments were used: barley
(2010)/black oat, rye, oilseed radish, oilseed radish + rye, and oilseed radish + barley or black oat, and a control
(consisting of weed species). A randomized block experimental design was used with eight replications. Plants
from each treatment were collected 100 days after sowing in plot areas of 0.75 m2 to determine dry matter yield.
The cover crops were desiccated and the onion seedlings were transplanted in July. The onion crops were
harvested every November to evaluate yield. Soil samples were collected at depths of 0− 10 and 10− 20 cm after
the onion harvest to evaluate soil chemical properties. The onion crop and residue deposition of single or
intercropped black oat, rye, and oilseed radish improved and maintained soil chemical properties. The lower dry
matter yield of cover crops found in the control treatment resulted in lower onion yields over the years. Cover
crops combined with soil tillage limited to the planting rows increased total onion yields and yield of larger-sized
onions as the system stabilized over time. MenosThe use of cover crops in no-tillage systems can change soil chemical properties and crop yield over time. Studies
using cover crops without the application of pesticides and soluble mineral fertilizers in no-tillage systems are
important to reduce production costs, the need for mechanization, and to improve nutrient cycling and crop
yield. The study aimed to evaluate how the use of different cover crops and the amount of dry matter produced
by such species affect soil chemical properties and onion yield. Onion crops were grown for eight years without
the use of pesticides and soluble mineral fertilizers in no-tillage system. The experiment was conducted from
2009 to 2016 in Ituporanga, state of Santa Catarina (SC), Brazil. The following treatments were used: barley
(2010)/black oat, rye, oilseed radish, oilseed radish + rye, and oilseed radish + barley or black oat, and a control
(consisting of weed species). A randomized block experimental design was used with eight replications. Plants
from each treatment were collected 100 days after sowing in plot areas of 0.75 m2 to determine dry matter yield.
The cover crops were desiccated and the onion seedlings were transplanted in July. The onion crops were
harvested every November to evaluate yield. Soil samples were collected at depths of 0− 10 and 10− 20 cm after
the onion harvest to evaluate soil chemical properties. The onion crop and residue deposition of single or
intercropped black oat, rye, and oilseed radish ... Mostrar Tudo |
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Palavras-Chave: |
Agroecological; Allium cepa L; Cover crops; Nutrient cycling. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02652naa a2200277 a 4500
001 1131516
005 2021-11-25
008 2021 bl uuuu u00u1 u #d
100 1 $aSOUZA, M.
245 $aSoil chemical properties and yield of onion crops grown for eight years under no-tillage system with cover crops.$h[electronic resource]
260 $c2021
520 $aThe use of cover crops in no-tillage systems can change soil chemical properties and crop yield over time. Studies using cover crops without the application of pesticides and soluble mineral fertilizers in no-tillage systems are important to reduce production costs, the need for mechanization, and to improve nutrient cycling and crop yield. The study aimed to evaluate how the use of different cover crops and the amount of dry matter produced by such species affect soil chemical properties and onion yield. Onion crops were grown for eight years without the use of pesticides and soluble mineral fertilizers in no-tillage system. The experiment was conducted from 2009 to 2016 in Ituporanga, state of Santa Catarina (SC), Brazil. The following treatments were used: barley (2010)/black oat, rye, oilseed radish, oilseed radish + rye, and oilseed radish + barley or black oat, and a control (consisting of weed species). A randomized block experimental design was used with eight replications. Plants from each treatment were collected 100 days after sowing in plot areas of 0.75 m2 to determine dry matter yield. The cover crops were desiccated and the onion seedlings were transplanted in July. The onion crops were harvested every November to evaluate yield. Soil samples were collected at depths of 0− 10 and 10− 20 cm after the onion harvest to evaluate soil chemical properties. The onion crop and residue deposition of single or intercropped black oat, rye, and oilseed radish improved and maintained soil chemical properties. The lower dry matter yield of cover crops found in the control treatment resulted in lower onion yields over the years. Cover crops combined with soil tillage limited to the planting rows increased total onion yields and yield of larger-sized onions as the system stabilized over time.
653 $aAgroecological
653 $aAllium cepa L
653 $aCover crops
653 $aNutrient cycling
700 1 $aMÜLLER JÚNIOR, V.
700 1 $aKURTZ, C.
700 1 $aVENTURA, B. S.
700 1 $aLOURENZI, C. R.
700 1 $aLAZZARI, C. J. R.
700 1 $aFERREIRA, G. W.
700 1 $aBRUNETTO, G.
700 1 $aLOSS, A.
700 1 $aCOMIN, J. J.
773 $tSoil & Tillage Research, Amsterdam, Holanda$gn. 208, p. 1-8, 2021.
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