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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
02/05/1994 |
Data da última atualização: |
02/05/1994 |
Autoria: |
ANDERSON. R. L. |
Título: |
Jointed goatgrass (Aegilops cylindrica) ecology and interference in winter wheat. |
Ano de publicação: |
1993 |
Fonte/Imprenta: |
Weed science, v.41, p. 388-393, 1993. |
Páginas: |
p. 338-393. |
Idioma: |
Inglês |
Conteúdo: |
Jointed goatgrass is a serious weed in winter wheat, and presently no herbicides are available for its selective control. This study examined the effect of time of emergence and removal on jointed goatgrass interference in winter wheat, as well as its rate of development and soil water extraction. The goal of this study was to suggest cultural practices that minimize jointed goatgrass interference in winter wheat. Jointed goatgrass development was identical to 'Vona" winter wheat in two crop seasons, even though precipitation differed drastically between seasons. Depth of soil water extraction of both species was also similar. Jointed goatgrass at 18 plants m-2 reduced grain yield 27 and 17% when emerging 0 and 42 d after Vona, respectively. The relationship between time of jointed goatgrass emergence after winter wheat and grain yield loss was Y = 30.6 - 0.29X (X + days, r = 0.72), indicating that plants emerging in lata fall still caused yield loss. Removing jointed goatgrass by early March prevented winter wheat grain yield loss. |
Palavras-Chave: |
Planta daninha. |
Thesagro: |
Genética; Genoma. |
Thesaurus Nal: |
pellets. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01525naa a2200181 a 4500 001 1646439 005 1994-05-02 008 1993 bl --- 0-- u #d 100 1 $aANDERSON. R. L. 245 $aJointed goatgrass (Aegilops cylindrica) ecology and interference in winter wheat. 260 $c1993 300 $ap. 338-393. 520 $aJointed goatgrass is a serious weed in winter wheat, and presently no herbicides are available for its selective control. This study examined the effect of time of emergence and removal on jointed goatgrass interference in winter wheat, as well as its rate of development and soil water extraction. The goal of this study was to suggest cultural practices that minimize jointed goatgrass interference in winter wheat. Jointed goatgrass development was identical to 'Vona" winter wheat in two crop seasons, even though precipitation differed drastically between seasons. Depth of soil water extraction of both species was also similar. Jointed goatgrass at 18 plants m-2 reduced grain yield 27 and 17% when emerging 0 and 42 d after Vona, respectively. The relationship between time of jointed goatgrass emergence after winter wheat and grain yield loss was Y = 30.6 - 0.29X (X + days, r = 0.72), indicating that plants emerging in lata fall still caused yield loss. Removing jointed goatgrass by early March prevented winter wheat grain yield loss. 650 $apellets 650 $aGenética 650 $aGenoma 653 $aPlanta daninha 773 $tWeed science$gv.41, p. 388-393, 1993.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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62. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | BENCHIMOL, R. L. Manejo de doenças fúngicas do cupuaçuzeiro. In: SIMPÓSIO SOBRE MANEJO DE PRAGAS, 1., 2009, Belém, PA. Manejo integrado de pragas, doenças e plantas daninhas em grãos e fruteiras: anais. Belém, PA: Embrapa Amazônia Oriental, 2009. 1 CD-ROM.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Amazônia Oriental. |
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76. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | MACHADO, R. L. P. Rotulagem dos alimentos. In: NASCIMENTO NETO, F. do (Org.). Recomendações básicas para a aplicação das boas práticas agropecuárias e de fabricação na agricultura familiar. Brasília, DF: Embrapa Informação Tecnológica, 2006. cap. 4, p. 81-102.Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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77. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | MACHADO, R. L. P. Rotulagem. In: MONTEIRO, R. P.; MATTA, V. M. da (Ed.). Queijo Minas artesanal: valorizando a agroindústria familiar. Brasília, DF: Embrapa, 2018. cap. 7, p. 96-102.Tipo: Capítulo em Livro Técnico-Científico |
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