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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/05/2020 |
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Data da última atualização: |
27/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REZENDES, I.; BASEGGIO, E. R.; GALON, L.; BRANDLER, D.; FORTE, C. T.; ASPIAZÚ, I.; FRANCESCHETTI, M. B.; SILVA, A. F. da. |
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Afiliação: |
Ines Rezendes, Universidade Federal de Fronteira Sul; Ediane Roncaglio Baseggio, Universidade Federal de Fronteira Sul; Leandro Galon, Universidade Federal de Fronteira Sul; Daiani Brandler, Universidade Federal de Fronteira Sul; César Tiago Forte, Universidade Federal de Fronteira Sul; Ignacio Aspiazú, Universidade Estadual de Montes Claros; Milena Barretta Franceschetti, Universidade Federal de Fronteira Sul; ALEXANDRE FERREIRA DA SILVA, CNPMS. |
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Título: |
Allelopathy of weeds on the growth of vegetables. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Communications in Plant Sciences, v. 10, p. 1-10, 2020. |
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DOI: |
10.26814/cps2020002 |
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Idioma: |
Inglês |
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Conteúdo: |
The use of allelopathy emerges as an alternative method for weed management in crops, especially in small vegetable producing properties. Thus, the objective of this work was to identify possible allelopathic effects of aqueous extracts of the weeds Cyperus difformis L. (small-flowered nutsedge), Commelina benghalensis L. (benghal dayflower) and Galinsoga parviflora Cav. (gallant soldier) on seed germination and seedling growth of Lactuca sativa L. (lettuce) and Lycopersicum esculentum L. (tomato). Two experiments were carried out in a completely randomized design with five replications, the first with lettuce seeds and the second with tomato seeds submitted to germination in five concentrations of weeds aqueous extracts (0, 25, 50, 75 and 100%). All treatments with aqueous extracts of the three species, at different concentrations, caused a reduction in lettuce and tomato root length. There was a reduction in most of the evaluated variables, and seed germination of the crops had the lowest influence of the extracts. The weeds benghal dayflower, small-flowered nutsedge and gallant soldier showed allelopathic potential on lettuce and tomato crops. This potential allelopathic effect is directly related to the concentration and type of extract from the plant species. In general, it can be noted that the greatest allelopathic effect occurred with the use of small-flowered nutsedge extract, followed by gallant soldier and benghal dayflower. |
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Palavras-Chave: |
Extrato aquoso; Palavra daninha. |
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Thesagro: |
Alelopatia; Erva Daninha; Galinsoga Parviflora. |
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Thesaurus Nal: |
Commelina benghalensis; Cyperus difformis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212756/1/Allelopathy-weeds.pdf
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Marc: |
LEADER 02293naa a2200301 a 4500
001 2122099
005 2020-10-27
008 2020 bl uuuu u00u1 u #d
024 7 $a10.26814/cps2020002$2DOI
100 1 $aREZENDES, I.
245 $aAllelopathy of weeds on the growth of vegetables.$h[electronic resource]
260 $c2020
520 $aThe use of allelopathy emerges as an alternative method for weed management in crops, especially in small vegetable producing properties. Thus, the objective of this work was to identify possible allelopathic effects of aqueous extracts of the weeds Cyperus difformis L. (small-flowered nutsedge), Commelina benghalensis L. (benghal dayflower) and Galinsoga parviflora Cav. (gallant soldier) on seed germination and seedling growth of Lactuca sativa L. (lettuce) and Lycopersicum esculentum L. (tomato). Two experiments were carried out in a completely randomized design with five replications, the first with lettuce seeds and the second with tomato seeds submitted to germination in five concentrations of weeds aqueous extracts (0, 25, 50, 75 and 100%). All treatments with aqueous extracts of the three species, at different concentrations, caused a reduction in lettuce and tomato root length. There was a reduction in most of the evaluated variables, and seed germination of the crops had the lowest influence of the extracts. The weeds benghal dayflower, small-flowered nutsedge and gallant soldier showed allelopathic potential on lettuce and tomato crops. This potential allelopathic effect is directly related to the concentration and type of extract from the plant species. In general, it can be noted that the greatest allelopathic effect occurred with the use of small-flowered nutsedge extract, followed by gallant soldier and benghal dayflower.
650 $aCommelina benghalensis
650 $aCyperus difformis
650 $aAlelopatia
650 $aErva Daninha
650 $aGalinsoga Parviflora
653 $aExtrato aquoso
653 $aPalavra daninha
700 1 $aBASEGGIO, E. R.
700 1 $aGALON, L.
700 1 $aBRANDLER, D.
700 1 $aFORTE, C. T.
700 1 $aASPIAZÚ, I.
700 1 $aFRANCESCHETTI, M. B.
700 1 $aSILVA, A. F. da
773 $tCommunications in Plant Sciences$gv. 10, p. 1-10, 2020.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
04/08/2015 |
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Data da última atualização: |
24/09/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SOUZA, A. C. A de; CORTES, M. V. de B.; SILVA, G. B. da; SOUSA, T. P. de; RODRIGUES, F. A.; FILIPPI, M. C. C. |
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Afiliação: |
ALAN CARLOS A. DE SOUZA, UFLA; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; GISELE BARATA DA SILVA, UFRA; THATYANE PEREIRA DE SOUZA, UFG; FABRICIO A. RODRIGUES, UFV; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
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Título: |
Enzyme-induced defense response in the suppression of rice leaf blast (Magnaporthe Oryzae) by silicon fertilization and bioagents. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
International Journal of Research Studies in Biosciences, v. 3, n. 5, p. 22-32, May 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mixture could be an effective strategy for rice blast management. MenosThe effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mix... Mostrar Tudo |
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Palavras-Chave: |
Bioagente. |
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Thesagro: |
Arroz; Brusone; Doença de planta; Oryza sativa; Silício. |
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Thesaurus NAL: |
Magnaporthe oryzae. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127449/1/CNPAF2015.pdf
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Marc: |
LEADER 02393naa a2200265 a 4500
001 2021319
005 2015-09-24
008 2015 bl uuuu u00u1 u #d
100 1 $aSOUZA, A. C. A de
245 $aEnzyme-induced defense response in the suppression of rice leaf blast (Magnaporthe Oryzae) by silicon fertilization and bioagents.$h[electronic resource]
260 $c2015
520 $aThe effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mixture could be an effective strategy for rice blast management.
650 $aMagnaporthe oryzae
650 $aArroz
650 $aBrusone
650 $aDoença de planta
650 $aOryza sativa
650 $aSilício
653 $aBioagente
700 1 $aCORTES, M. V. de B.
700 1 $aSILVA, G. B. da
700 1 $aSOUSA, T. P. de
700 1 $aRODRIGUES, F. A.
700 1 $aFILIPPI, M. C. C.
773 $tInternational Journal of Research Studies in Biosciences$gv. 3, n. 5, p. 22-32, May 2015.
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Embrapa Arroz e Feijão (CNPAF) |
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