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 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
17/10/2012 |
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Autoria: |
EVERSMEYER, M. G.; KRAMER, C. L. |
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Afiliação: |
Merle G. Eversmeyer; Charles L. Kramer. |
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Título: |
Vertical concentrations of fungal spores above wheat fields. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Grana, v. 26, n. 1, p. 97-102, 1987. |
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Idioma: |
Inglês |
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Notas: |
DOI: 10.1080/00173138709428909 |
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Conteúdo: |
Kramer-Collins volumetric spore samplers were used to measure concentrations of Puccinia graminis, P. recondita, Erysiphe graminis, Cladosporium, and Alternaria spores and fungal hyphal fragments within the canopy and at 1, 3, 6 and 14 m above ground level over wheat fields near Manhattan, Kansas, USA. The largest numbers of spores of each of the named fungi and hyphal fragments were trapped during hours when free moisture was not present on host leaf surfaces. As wind velocity increased, the number of spores and hyphal fragments trapped at all heights increased. Airspora trapped at the various sampling heights under all combinations of biometeorological conditions were calculated as ratios. Location and severity of infection or frequency of occurrence of the parent fungi greatly affected the percentage of propagules released in the canopy and escaped into the atmosphere. Less than 40% of P. recondita urediniospores released from tillering plants in the fall and trapped at 20–25 cm were trapped at 1 m, while only 6% of those trapped at 10 cm were trapped at 1 m. Ratios for the average number of spores trapped at 3 m: 1 m during the entire sampling period were similar for P. recondita (0.54), Alternaria (0.57), and E. graminis (0.48). However, the higher ratios that occurred with spores of P. graminis (0.72) and Cladosporium (0.76), and hyphal fragments (0.77) indicate considerable mixing of locally released airspora with airspora from exogenous sources. |
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Palavras-Chave: |
Medição a campo. |
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Thesagro: |
Fungo; Trigo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01958naa a2200181 a 4500
001 1836098
005 2012-10-17
008 1987 bl --- 0-- u #d
100 1 $aEVERSMEYER, M. G.
245 $aVertical concentrations of fungal spores above wheat fields.
260 $c1987
500 $aDOI: 10.1080/00173138709428909
520 $aKramer-Collins volumetric spore samplers were used to measure concentrations of Puccinia graminis, P. recondita, Erysiphe graminis, Cladosporium, and Alternaria spores and fungal hyphal fragments within the canopy and at 1, 3, 6 and 14 m above ground level over wheat fields near Manhattan, Kansas, USA. The largest numbers of spores of each of the named fungi and hyphal fragments were trapped during hours when free moisture was not present on host leaf surfaces. As wind velocity increased, the number of spores and hyphal fragments trapped at all heights increased. Airspora trapped at the various sampling heights under all combinations of biometeorological conditions were calculated as ratios. Location and severity of infection or frequency of occurrence of the parent fungi greatly affected the percentage of propagules released in the canopy and escaped into the atmosphere. Less than 40% of P. recondita urediniospores released from tillering plants in the fall and trapped at 20–25 cm were trapped at 1 m, while only 6% of those trapped at 10 cm were trapped at 1 m. Ratios for the average number of spores trapped at 3 m: 1 m during the entire sampling period were similar for P. recondita (0.54), Alternaria (0.57), and E. graminis (0.48). However, the higher ratios that occurred with spores of P. graminis (0.72) and Cladosporium (0.76), and hyphal fragments (0.77) indicate considerable mixing of locally released airspora with airspora from exogenous sources.
650 $aFungo
650 $aTrigo
653 $aMedição a campo
700 1 $aKRAMER, C. L.
773 $tGrana$gv. 26, n. 1, p. 97-102, 1987.
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Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
18/02/2022 |
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Data da última atualização: |
18/02/2022 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
RIBEIRO, C. S. da C.; CARVALHO, S. I. C. de. |
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Afiliação: |
CLAUDIA SILVA DA COSTA RIBEIRO, CNPH; SABRINA ISABEL COSTA DE CARVALHO, CNPH. |
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Título: |
Cultivares. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: NICK, C.; BORÉM, A. (ed.). Berinjela: do plantio à colheita. Viçosa, MG: UFV, 2021. |
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Páginas: |
p. 72-85. |
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Idioma: |
Português |
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Palavras-Chave: |
Cultivar BRS Ciça. |
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Thesagro: |
Berinjela; Solanum Melongena; Variedade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00523naa a2200181 a 4500
001 2140225
005 2022-02-18
008 2021 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, C. S. da C.
245 $aCultivares.$h[electronic resource]
260 $c2021
300 $ap. 72-85.
650 $aBerinjela
650 $aSolanum Melongena
650 $aVariedade
653 $aCultivar BRS Ciça
700 1 $aCARVALHO, S. I. C. de
773 $tIn: NICK, C.; BORÉM, A. (ed.). Berinjela: do plantio à colheita. Viçosa, MG: UFV, 2021.
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