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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
21/10/1996 |
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Data da última atualização: |
07/09/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOUZA NETO, J. de; SOUSA, F. B. de. |
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Afiliação: |
CNPC; CNPC. |
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Título: |
Avaliação de tecnologias em nível de propriedade: implicaçõees para transferência de tecnologia. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 27., 1990, Campinas. Anais... Piracicaba: FEALQ, 1990. p. 555. |
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Idioma: |
Português |
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Palavras-Chave: |
Produtor rural; Smallholders. |
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Thesagro: |
Adoção de Inovações; Caprino; Ovino; Transferência de tecnologia. |
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Thesaurus Nal: |
Brazil; Goats; Sheep; Technology transfer. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/47644/1/RAC-Avaliacao-de-tecnologias.pdf
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Marc: |
LEADER 00766nam a2200229 a 4500
001 1514519
005 2021-09-07
008 1990 bl uuuu u00u1 u #d
100 1 $aSOUZA NETO, J. de
245 $aAvaliação de tecnologias em nível de propriedade$bimplicaçõees para transferência de tecnologia.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 27., 1990, Campinas. Anais... Piracicaba: FEALQ, 1990. p. 555.$c1990
650 $aBrazil
650 $aGoats
650 $aSheep
650 $aTechnology transfer
650 $aAdoção de Inovações
650 $aCaprino
650 $aOvino
650 $aTransferência de tecnologia
653 $aProdutor rural
653 $aSmallholders
700 1 $aSOUSA, F. B. de
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/11/2008 |
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Data da última atualização: |
26/10/2023 |
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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: |
ALMEIDA, A. M. R.; SOSA-GOMEZ, D. R.; BINNECK, E.; MARIN, S. R. R.; ZUCCHI, M. I. ABDELNOOR, R. V.; SOUTO, E. R. |
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Afiliação: |
Alvaro Manoel Rodrigues Almeida, CNPSo; Daniel Ricardo Sosa Gomez, CNPSo; Eliseu Binneck, CNPSo; Silvana Regina Rockenbach Marin, CNPSo; Maria Ines Zucchi, Instituto Agronômico de Campinas, IAC; Ricardo Vilela Abdelnoor, CNPSo; Eliezer Rodrigues de Souto. |
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Título: |
Effect of crop rotation on specialization and genetic diversity of Macrophomina phaseolina. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 33, n. 4, p. 257-264, jul./aug. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Charcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene diversity estimated indicated high levels of variability (HT =0.3484). Results suggest that genetic differentiation of M. phaseolina can be altered by crop rotation. MenosCharcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene... Mostrar Tudo |
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Thesagro: |
Rotação de Cultura. |
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Thesaurus NAL: |
Crop rotation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42998/1/28690.pdf
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Marc: |
LEADER 02331naa a2200205 a 4500
001 1471019
005 2023-10-26
008 2008 bl uuuu u00u1 u #d
100 1 $aALMEIDA, A. M. R.
245 $aEffect of crop rotation on specialization and genetic diversity of Macrophomina phaseolina.$h[electronic resource]
260 $c2008
520 $aCharcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene diversity estimated indicated high levels of variability (HT =0.3484). Results suggest that genetic differentiation of M. phaseolina can be altered by crop rotation.
650 $aCrop rotation
650 $aRotação de Cultura
700 1 $aSOSA-GOMEZ, D. R.
700 1 $aBINNECK, E.
700 1 $aMARIN, S. R. R.
700 1 $aZUCCHI, M. I. ABDELNOOR, R. V.
700 1 $aSOUTO, E. R.
773 $tTropical Plant Pathology, Brasília, DF$gv. 33, n. 4, p. 257-264, jul./aug. 2008.
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Registro original: |
Embrapa Soja (CNPSO) |
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