Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
03/11/1994 |
|
Data da última atualização: |
21/02/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PRABHU, A. S.; FILIPPI, M. C. |
|
Afiliação: |
ANNE SITARAMA PRABHU, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
|
Título: |
Seed treatment with pyroquilon for the control of leaf blast in Brazilian upland rice. |
|
Ano de publicação: |
1993 |
|
Fonte/Imprenta: |
International Journal of Pest Management, v. 39, n. 3, p. 347-353, 1993. |
|
ISSN: |
1366-586 |
|
DOI: |
https://doi.org/10.1080/09670879309371819 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The effect of seed treatment with pyroquilon fungicide on rice leaf blast caused by Pyricularia oryzae Cav. was studied in field and blast nursery experiments. In the field, pyroquilon (4.0 g/kg seed) treatment kept leaf blast severities below 5% at 38 days after sowing (d.a.s.) in susceptible cultivars (cvs) IAC 47, IAC 25, IAC 164, and L-50. In the blast nursery experiment, seed treatment with carbofuran insecticide did not affect the efficiency of pyroquilon. Seed treatment with pyroquilon (4.0 g/ kg seed) or pyroquilon (4.0 g/kg seed) + carbofuran (4.8 g/kg seed) significantly reduced leaf blast at 38 d.a.s. in cvs IAC 25, IRAT 112 and IAC 47. Leaf blast and biomass production at 58 d.a.s. were negatively correlated (r = -0.91, ? = 0.01). Under low disease pressure, pyroquilon seed treatment reduced leaf blast severity at rates of application - 2.0 g/kg seed. At high disease pressure, higher rates of application (4.0 g/kg seed) were found necessary for maximum disease control in a susceptible cultivar. Seed treatment had little or no effect in more resistant cultivars. The results indicate that treating seed with pyroquilon provides adequate protection against rice leaf blast during the vegetative phase in susceptible cultivars. |
|
Palavras-Chave: |
Blast; Pyroquilon. |
|
Thesagro: |
Arroz; Brusone; Doença; Fungo; Oryza Sativa; Pyricularia Oryzae; Semente. |
|
Thesaurus NAL: |
Blast disease; Rice. |
|
Categoria do assunto: |
H Saúde e Patologia |
|
Marc: |
LEADER 02056naa a2200289 a 4500
001 1197968
005 2022-02-21
008 1993 bl uuuu u00u1 u #d
022 $a1366-586
024 7 $ahttps://doi.org/10.1080/09670879309371819$2DOI
100 1 $aPRABHU, A. S.
245 $aSeed treatment with pyroquilon for the control of leaf blast in Brazilian upland rice.$h[electronic resource]
260 $c1993
520 $aThe effect of seed treatment with pyroquilon fungicide on rice leaf blast caused by Pyricularia oryzae Cav. was studied in field and blast nursery experiments. In the field, pyroquilon (4.0 g/kg seed) treatment kept leaf blast severities below 5% at 38 days after sowing (d.a.s.) in susceptible cultivars (cvs) IAC 47, IAC 25, IAC 164, and L-50. In the blast nursery experiment, seed treatment with carbofuran insecticide did not affect the efficiency of pyroquilon. Seed treatment with pyroquilon (4.0 g/ kg seed) or pyroquilon (4.0 g/kg seed) + carbofuran (4.8 g/kg seed) significantly reduced leaf blast at 38 d.a.s. in cvs IAC 25, IRAT 112 and IAC 47. Leaf blast and biomass production at 58 d.a.s. were negatively correlated (r = -0.91, ? = 0.01). Under low disease pressure, pyroquilon seed treatment reduced leaf blast severity at rates of application - 2.0 g/kg seed. At high disease pressure, higher rates of application (4.0 g/kg seed) were found necessary for maximum disease control in a susceptible cultivar. Seed treatment had little or no effect in more resistant cultivars. The results indicate that treating seed with pyroquilon provides adequate protection against rice leaf blast during the vegetative phase in susceptible cultivars.
650 $aBlast disease
650 $aRice
650 $aArroz
650 $aBrusone
650 $aDoença
650 $aFungo
650 $aOryza Sativa
650 $aPyricularia Oryzae
650 $aSemente
653 $aBlast
653 $aPyroquilon
700 1 $aFILIPPI, M. C.
773 $tInternational Journal of Pest Management$gv. 39, n. 3, p. 347-353, 1993.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
