|
|
Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
21/07/2009 |
Data da última atualização: |
11/11/2010 |
Autoria: |
NASCIMENTO, J. F. do; ZAMBOLIM, L.; VALE, F. X. R. do; BERGER, P. G.; CECON, P. R. |
Afiliação: |
JEFFERSON FERNANDES DO NASCIMENTO, UFRR; LAÉRCIO ZAMBOLIM, UFV; FRANCISCO XAVIER RIBEIRO DO VALE, UFV; PAULO GERALDO BERGER, UFV; PAULO ROBERTO CECON, UFV. |
Título: |
Cotton resistance to ramulose and variability of Colletotrichum gossypii f. sp. cephalosporioides. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Summa Phytopathologica, Botucatu, v. 32, n. 1, p. 9-15, Jan./Mar. 2006. |
Idioma: |
Inglês |
Conteúdo: |
Four cultivars and 21 lines of cotton were evaluated for resistance to ramulose (Colletotrichum gossypii f. sp. cephalosporioides) in a field where the disease is endemic. The seeds of each genotype were planted in 5 x 5 m plots with three replications. The lines CNPA 94-101 and 'CNPA Precoce 2'were used as standard susceptible and resistant references, respectively. The disease incidence (DI) was calculated from the proportion of diseased plants in the plot. The disease index (DIn) was calculated from the disease severity using a 1 to 9 scale, and was evaluated at weekly intervals starting 107 days after emergence. The data collected was used to calculate the area under disease progress curve (AUDPC). In general, the DIn increased linearly with time and varied from 20.0 to 57.1 and AUDPC from 567 to 1627 among the genotypes which could be clustered in to two distinct groups. The susceptible group contained two cultivars and nine lines and the resistant group contained one cultivar and 12 lines. The relationship between disease index and evaluation times was linear for the 25 genotypes tested. The line CNPA 94-101, used as susceptible standard, was the most susceptible with an average DI = 83.4, DIn = 57.1 and AUDPC = 1627.7. The line CNPA 96-08 with DI = 37.8, DIn = 20.0 and AUDPC = 567.7 was the most resistant one. Among the commercial cultivars 'IAC 22' was the most susceptible and 'CNPA Precoce 2', used as resistant standard was the most resistant. The variability in virulence of the pathogen was studied by spray inoculating nine genotypes with conidial suspensions (105/mL) of either of the 10 isolates. The disease severity was evaluated 30 days later using a scale of 1 to 5. The virulence of the isolate was expressed by DIn. All the isolates were highly virulent but their virulence avaried for several genotypes and could be clustered in two distinct groups of less and more virulent isolates. The isolate MTRM 14 from Mato Grosso was the least virulent while Minas Gerais was the most virulent, with DIn of 6.36 and 46.47, respectively. In this experiment the line HR 102 and the cultivar 'Antares' were the most resistant ones with DIns of 18.32 and 19.14, respectively. MenosFour cultivars and 21 lines of cotton were evaluated for resistance to ramulose (Colletotrichum gossypii f. sp. cephalosporioides) in a field where the disease is endemic. The seeds of each genotype were planted in 5 x 5 m plots with three replications. The lines CNPA 94-101 and 'CNPA Precoce 2'were used as standard susceptible and resistant references, respectively. The disease incidence (DI) was calculated from the proportion of diseased plants in the plot. The disease index (DIn) was calculated from the disease severity using a 1 to 9 scale, and was evaluated at weekly intervals starting 107 days after emergence. The data collected was used to calculate the area under disease progress curve (AUDPC). In general, the DIn increased linearly with time and varied from 20.0 to 57.1 and AUDPC from 567 to 1627 among the genotypes which could be clustered in to two distinct groups. The susceptible group contained two cultivars and nine lines and the resistant group contained one cultivar and 12 lines. The relationship between disease index and evaluation times was linear for the 25 genotypes tested. The line CNPA 94-101, used as susceptible standard, was the most susceptible with an average DI = 83.4, DIn = 57.1 and AUDPC = 1627.7. The line CNPA 96-08 with DI = 37.8, DIn = 20.0 and AUDPC = 567.7 was the most resistant one. Among the commercial cultivars 'IAC 22' was the most susceptible and 'CNPA Precoce 2', used as resistant standard was the most resistant. The variability in vir... Mostrar Tudo |
Palavras-Chave: |
Colletotrichum gossypii f. sp. cephalosporioides; Gossypium sp; Índice de doença; Resistência de algodão à ramulose; Variabilidade fisiológica; Virulência. |
Thesagro: |
Doença de Planta. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03017naa a2200253 a 4500 001 1083235 005 2010-11-11 008 2006 bl uuuu u00u1 u #d 100 1 $aNASCIMENTO, J. F. do 245 $aCotton resistance to ramulose and variability of Colletotrichum gossypii f. sp. cephalosporioides. 260 $c2006 520 $aFour cultivars and 21 lines of cotton were evaluated for resistance to ramulose (Colletotrichum gossypii f. sp. cephalosporioides) in a field where the disease is endemic. The seeds of each genotype were planted in 5 x 5 m plots with three replications. The lines CNPA 94-101 and 'CNPA Precoce 2'were used as standard susceptible and resistant references, respectively. The disease incidence (DI) was calculated from the proportion of diseased plants in the plot. The disease index (DIn) was calculated from the disease severity using a 1 to 9 scale, and was evaluated at weekly intervals starting 107 days after emergence. The data collected was used to calculate the area under disease progress curve (AUDPC). In general, the DIn increased linearly with time and varied from 20.0 to 57.1 and AUDPC from 567 to 1627 among the genotypes which could be clustered in to two distinct groups. The susceptible group contained two cultivars and nine lines and the resistant group contained one cultivar and 12 lines. The relationship between disease index and evaluation times was linear for the 25 genotypes tested. The line CNPA 94-101, used as susceptible standard, was the most susceptible with an average DI = 83.4, DIn = 57.1 and AUDPC = 1627.7. The line CNPA 96-08 with DI = 37.8, DIn = 20.0 and AUDPC = 567.7 was the most resistant one. Among the commercial cultivars 'IAC 22' was the most susceptible and 'CNPA Precoce 2', used as resistant standard was the most resistant. The variability in virulence of the pathogen was studied by spray inoculating nine genotypes with conidial suspensions (105/mL) of either of the 10 isolates. The disease severity was evaluated 30 days later using a scale of 1 to 5. The virulence of the isolate was expressed by DIn. All the isolates were highly virulent but their virulence avaried for several genotypes and could be clustered in two distinct groups of less and more virulent isolates. The isolate MTRM 14 from Mato Grosso was the least virulent while Minas Gerais was the most virulent, with DIn of 6.36 and 46.47, respectively. In this experiment the line HR 102 and the cultivar 'Antares' were the most resistant ones with DIns of 18.32 and 19.14, respectively. 650 $aDoença de Planta 653 $aColletotrichum gossypii f. sp. cephalosporioides 653 $aGossypium sp 653 $aÍndice de doença 653 $aResistência de algodão à ramulose 653 $aVariabilidade fisiológica 653 $aVirulência 700 1 $aZAMBOLIM, L. 700 1 $aVALE, F. X. R. do 700 1 $aBERGER, P. G. 700 1 $aCECON, P. R. 773 $tSumma Phytopathologica, Botucatu$gv. 32, n. 1, p. 9-15, Jan./Mar. 2006.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
26/02/2015 |
Data da última atualização: |
22/02/2016 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
OLIVEIRA, P. B.; ARAGÃO, J. I. O. de; XAVIER, F. A. da S.; SILVA, M. S R. da. |
Afiliação: |
PAULO BRITO OLIVEIRA, UFRB; JOSÉ IVO O. DE ARAGÃO; FRANCISCO ALISSON DA SILVA XAVIER, CNPMF; MARCOS R. DA SILVA, UFRB. |
Título: |
Estoque de carbono orgânico de um Latossolo Amarelo em função do cultivo de plantas de cobertura. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro : [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014. |
Idioma: |
Português |
Conteúdo: |
A cobertura vegetal do solo tem efeito direto sobre os teores de carbono (C) orgânico. O uso de leguminosas e/ou gramíneas na adubação verde tem sido considerado uma prática agrícola que promove aumento da matéria orgânica do solo. |
Palavras-Chave: |
Sequestro de carbono. |
Thesagro: |
Cobertura do solo; Latossolo Amarelo; Leguminosa. |
Thesaurus NAL: |
Carbon sequestration; Oxisols; Vegetation cover. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139752/1/168-14.pdf
|
Marc: |
LEADER 01127nam a2200229 a 4500 001 2010001 005 2016-02-22 008 2014 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, P. B. 245 $aEstoque de carbono orgânico de um Latossolo Amarelo em função do cultivo de plantas de cobertura.$h[electronic resource] 260 $aIn: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro : [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura$c2014 520 $aA cobertura vegetal do solo tem efeito direto sobre os teores de carbono (C) orgânico. O uso de leguminosas e/ou gramíneas na adubação verde tem sido considerado uma prática agrícola que promove aumento da matéria orgânica do solo. 650 $aCarbon sequestration 650 $aOxisols 650 $aVegetation cover 650 $aCobertura do solo 650 $aLatossolo Amarelo 650 $aLeguminosa 653 $aSequestro de carbono 700 1 $aARAGÃO, J. I. O. de 700 1 $aXAVIER, F. A. da S. 700 1 $aSILVA, M. S R. da
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|