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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
29/08/2011 |
Data da última atualização: |
29/08/2011 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
TAILLEBOIS, J. E.; NEVES, P. de C. F.; DOSSMAN, J. |
Afiliação: |
JAMES E. TAILLEBOIS, CIRAD; PERICLES DE CARVALHO FERREIRA NEVES, CNPAF; JOANNA DOSSMAN, CIRAD. |
Título: |
Macho-esterilidade monogênica e recessiva: ferramenta de seleção para a criação genitores de arroz híbrido. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri, 2011. |
Volume: |
v. 1. |
Páginas: |
p. 117-120. |
Idioma: |
Português |
Conteúdo: |
Objetivando selecionar eficazmente as linhagens genitoras de híbridos, é necessário selecionar em gerações precoces: 1) aptidão à combinação, para obter híbridos produtivos com elevado valor tecnológico; e 2) aptidão à alogamia, para obter híbridos cujas sementes são fáceis de produzir e, conseqüentemente, mais baratas. |
Palavras-Chave: |
Arroz híbrido. |
Thesagro: |
Alogamia; Arroz; Melhoramento genético vegetal; Oryza sativa. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40655/1/ft117.pdf
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Marc: |
LEADER 01086nam a2200217 a 4500 001 1899057 005 2011-08-29 008 2011 bl uuuu u00u1 u #d 100 1 $aTAILLEBOIS, J. E. 245 $aMacho-esterilidade monogênica e recessiva$bferramenta de seleção para a criação genitores de arroz híbrido. 260 $aIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri$c2011 300 $ap. 117-120. v. 1. 490 $vv. 1. 520 $aObjetivando selecionar eficazmente as linhagens genitoras de híbridos, é necessário selecionar em gerações precoces: 1) aptidão à combinação, para obter híbridos produtivos com elevado valor tecnológico; e 2) aptidão à alogamia, para obter híbridos cujas sementes são fáceis de produzir e, conseqüentemente, mais baratas. 650 $aAlogamia 650 $aArroz 650 $aMelhoramento genético vegetal 650 $aOryza sativa 653 $aArroz híbrido 700 1 $aNEVES, P. de C. F. 700 1 $aDOSSMAN, J.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
30/07/2013 |
Data da última atualização: |
30/07/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
COSTA, L. B.; RANGEL, D. E. N.; MORANDI, M. A. B.; BETTIOL, W. |
Afiliação: |
LÚCIO BERTOLDO COSTA, UFV; DRAUZIO EDUARDO NARETTTO RANGEL, UNIVAP; MARCELO AUGUSTO BOECHAT MORANDI, CNPMA; WAGNER BETTIOL, CNPMA. |
Título: |
Effects of UV-B radiation on the antagonistic ability of Clonostachys rosea to Botrytis cinerea on strawberry leaves. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Biological Control, San Diego, v. 65, n. 1, p. 95-100, 2013. |
Idioma: |
Inglês |
Conteúdo: |
Clonostachys rosea is effective to control of Botrytis cinerea on strawberry, although is highly susceptible to ultraviolet radiation and has reduced ability to antagonize a pathogen in solar radiation conditions. The objective of this work was to evaluate the ability of an isolate of C. rosea, previously selected for its tolerant to UV-B radiation, to control B. cinerea on strawberry leaves in controlled experiments. Leaf discs of 1 cm diameter were placed on Petri dishes and each received 20 lL of a C. rosea LQC 62 concentrations (104, 105, and 106 conidia mL -1). They were then exposed to UV-B irradiance 600mWm -2 (0, 2.1, 4.2, and 6.3 kJ m -2), and after radiation, half of the discs were inoculated with an aliquot of 10 lL B. cinerea (105 - conidia mL -1). The colonization of fungi on the leaf disc was measured with diagrammatic scale formation of conidiophores. The presence and sporulation of C. rosea on leaf disc was influenced by the dose of UV-B radiation and the conidial concentration of antagonist. The incidence and severity of B. cinerea on leaf discs were inversely correlated to presence and sporulation of C. rosea. The growth of the pathogen was higher in the lower C. rosea concentration. The highest concentration of C. rosea (106 conidia mL -1) reduced the incidence and severity by 91% and 98% of B. cinerea on strawberry leaf discs. The UV-B radiation reduced the ability of C. rosea to control B. cinerea. The higher dose of UV-B reduced the presence and sporulation of C. rosea by 20% and 42%, respectively. Consequently, the incidence of B. cinerea increased twice and the severity was three-folder higher. Taken together this data means that, for the development of biological control agents based products, the effect of UV-B should be considered on the efficacy studies. MenosClonostachys rosea is effective to control of Botrytis cinerea on strawberry, although is highly susceptible to ultraviolet radiation and has reduced ability to antagonize a pathogen in solar radiation conditions. The objective of this work was to evaluate the ability of an isolate of C. rosea, previously selected for its tolerant to UV-B radiation, to control B. cinerea on strawberry leaves in controlled experiments. Leaf discs of 1 cm diameter were placed on Petri dishes and each received 20 lL of a C. rosea LQC 62 concentrations (104, 105, and 106 conidia mL -1). They were then exposed to UV-B irradiance 600mWm -2 (0, 2.1, 4.2, and 6.3 kJ m -2), and after radiation, half of the discs were inoculated with an aliquot of 10 lL B. cinerea (105 - conidia mL -1). The colonization of fungi on the leaf disc was measured with diagrammatic scale formation of conidiophores. The presence and sporulation of C. rosea on leaf disc was influenced by the dose of UV-B radiation and the conidial concentration of antagonist. The incidence and severity of B. cinerea on leaf discs were inversely correlated to presence and sporulation of C. rosea. The growth of the pathogen was higher in the lower C. rosea concentration. The highest concentration of C. rosea (106 conidia mL -1) reduced the incidence and severity by 91% and 98% of B. cinerea on strawberry leaf discs. The UV-B radiation reduced the ability of C. rosea to control B. cinerea. The higher dose of UV-B reduced the presence and sporula... Mostrar Tudo |
Palavras-Chave: |
Clonostachys rosea f. rosea; Gliocladium roseum; Ultraviolet - B. |
Thesagro: |
Antagonismo; Botrytis cinerea; Controle biológico; Raio ultravioleta. |
Thesaurus NAL: |
Biological control; Climate change; gray mold; Ultraviolet radiation. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02702naa a2200289 a 4500 001 1963053 005 2013-07-30 008 2013 bl uuuu u00u1 u #d 100 1 $aCOSTA, L. B. 245 $aEffects of UV-B radiation on the antagonistic ability of Clonostachys rosea to Botrytis cinerea on strawberry leaves.$h[electronic resource] 260 $c2013 520 $aClonostachys rosea is effective to control of Botrytis cinerea on strawberry, although is highly susceptible to ultraviolet radiation and has reduced ability to antagonize a pathogen in solar radiation conditions. The objective of this work was to evaluate the ability of an isolate of C. rosea, previously selected for its tolerant to UV-B radiation, to control B. cinerea on strawberry leaves in controlled experiments. Leaf discs of 1 cm diameter were placed on Petri dishes and each received 20 lL of a C. rosea LQC 62 concentrations (104, 105, and 106 conidia mL -1). They were then exposed to UV-B irradiance 600mWm -2 (0, 2.1, 4.2, and 6.3 kJ m -2), and after radiation, half of the discs were inoculated with an aliquot of 10 lL B. cinerea (105 - conidia mL -1). The colonization of fungi on the leaf disc was measured with diagrammatic scale formation of conidiophores. The presence and sporulation of C. rosea on leaf disc was influenced by the dose of UV-B radiation and the conidial concentration of antagonist. The incidence and severity of B. cinerea on leaf discs were inversely correlated to presence and sporulation of C. rosea. The growth of the pathogen was higher in the lower C. rosea concentration. The highest concentration of C. rosea (106 conidia mL -1) reduced the incidence and severity by 91% and 98% of B. cinerea on strawberry leaf discs. The UV-B radiation reduced the ability of C. rosea to control B. cinerea. The higher dose of UV-B reduced the presence and sporulation of C. rosea by 20% and 42%, respectively. Consequently, the incidence of B. cinerea increased twice and the severity was three-folder higher. Taken together this data means that, for the development of biological control agents based products, the effect of UV-B should be considered on the efficacy studies. 650 $aBiological control 650 $aClimate change 650 $agray mold 650 $aUltraviolet radiation 650 $aAntagonismo 650 $aBotrytis cinerea 650 $aControle biológico 650 $aRaio ultravioleta 653 $aClonostachys rosea f. rosea 653 $aGliocladium roseum 653 $aUltraviolet - B 700 1 $aRANGEL, D. E. N. 700 1 $aMORANDI, M. A. B. 700 1 $aBETTIOL, W. 773 $tBiological Control, San Diego$gv. 65, n. 1, p. 95-100, 2013.
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