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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/10/1992 |
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Data da última atualização: |
29/10/2004 |
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Autoria: |
SILVA, P. R. F.; SCHMIDT, E. |
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Afiliação: |
Departamento de Fitotecnia da Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, 90000. |
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Título: |
Effect of rate and method of planting on light interception and on agronomic characteristics of sunflower. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
In: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata. Actas. Mar del Plata: ASAGIR/ISA, 1985. t.1, p.295-299. |
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Idioma: |
Inglês |
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Conteúdo: |
The new interest for research on sunflower (Helianthus annus L.) in the Southernmost region of Brazil and the availability of new commercial hybrids have determined the establishment of cultural practices for this area in order to obtain optima grain and oil yields. With the objective of evaluating the effect of rate and pattern of planting on light interception and an agronomic characteristics of sunflower "Conti 711", a research was conducted in Guaiba, RS, Brazil, during the 1983/84 growing season. Populations of 25 and 50,000 plants/ha were tested in five methods of planting: two single row spacings, 100 and 70 cm apart; two double row systems spaced 150 and 200 cem apart; and one system with plants uniformily spaced within and between rows, 63 and 45 cm apart, respectively to 25,000 and 50,000 plants/ha. Grain and oil yields, light interception, plant height, and leaf area index were higher with 50,000 than with 25,000 plants/ha. On the other hand, grain weight, grain number per head, leaf area per plant, and biological yield were lower with the higher rate of planting. Generally, the method of planting had little or no effect on plant characters, except for light interception and plant height. In the systems with double rows, light interception between double rows was lower than in other methods of planting; however, within the rows, light interception was the highest. Platn height in the double row systems was higer than in the other methods of planting. |
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Palavras-Chave: |
Brasil; Cultural practice; Rio Grande do Sul; Sunflower. |
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Thesagro: |
Girassol; Pratica Cultural. |
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Thesaurus Nal: |
Brazil; crop management. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02198naa a2200229 a 4500
001 1454820
005 2004-10-29
008 1985 bl uuuu u00u1 u #d
100 1 $aSILVA, P. R. F.
245 $aEffect of rate and method of planting on light interception and on agronomic characteristics of sunflower.
260 $c1985
520 $aThe new interest for research on sunflower (Helianthus annus L.) in the Southernmost region of Brazil and the availability of new commercial hybrids have determined the establishment of cultural practices for this area in order to obtain optima grain and oil yields. With the objective of evaluating the effect of rate and pattern of planting on light interception and an agronomic characteristics of sunflower "Conti 711", a research was conducted in Guaiba, RS, Brazil, during the 1983/84 growing season. Populations of 25 and 50,000 plants/ha were tested in five methods of planting: two single row spacings, 100 and 70 cm apart; two double row systems spaced 150 and 200 cem apart; and one system with plants uniformily spaced within and between rows, 63 and 45 cm apart, respectively to 25,000 and 50,000 plants/ha. Grain and oil yields, light interception, plant height, and leaf area index were higher with 50,000 than with 25,000 plants/ha. On the other hand, grain weight, grain number per head, leaf area per plant, and biological yield were lower with the higher rate of planting. Generally, the method of planting had little or no effect on plant characters, except for light interception and plant height. In the systems with double rows, light interception between double rows was lower than in other methods of planting; however, within the rows, light interception was the highest. Platn height in the double row systems was higer than in the other methods of planting.
650 $aBrazil
650 $acrop management
650 $aGirassol
650 $aPratica Cultural
653 $aBrasil
653 $aCultural practice
653 $aRio Grande do Sul
653 $aSunflower
700 1 $aSCHMIDT, E.
773 $tIn: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata. Actas. Mar del Plata: ASAGIR/ISA, 1985. t.1, p.295-299.
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Registro original: |
Embrapa Soja (CNPSO) |
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Nenhum exemplar cadastrado para este documento. |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
16/01/2008 |
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Data da última atualização: |
02/04/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
PARAÍBA, L. C.; RICARTE, B. |
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Afiliação: |
Lourival Costa Paraíba, Embrapa Meio Ambiente; Beatriz Ricarte, Universidad Politécnica de Valencia. |
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Título: |
Modelización de la bioconcentración de plaguicida en frutales. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 36., Bonito, 2007. Anais... [S.l.]: Sociedade Brsileira de Engenharia Agrícola, 2007. 4p. |
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Idioma: |
Espanhol |
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Conteúdo: |
El modelo que se presenta permite simular la evolución de la concentración de un plaguicida en árboles frutales así como estimar su factor de bioconcentración (BCF) en los frutos, su absorción por las plantas a través de la corriente transpiratoria y el tiempo en que su concentración en los frutos será máxima. La robustez del modelo se evaluó mediante un análisis de sensibilidad de los valores BCF del plaguicida en los frutos con respecto a la variabilidad de los datos. |
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Thesagro: |
Modelo Matemático; Pesticida. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/100496/1/2007AA-032.pdf
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Marc: |
LEADER 00990nam a2200145 a 4500
001 1015663
005 2014-04-02
008 2007 bl uuuu u00u1 u #d
100 1 $aPARAÍBA, L. C.
245 $aModelización de la bioconcentración de plaguicida en frutales.
260 $aIn: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 36., Bonito, 2007. Anais... [S.l.]: Sociedade Brsileira de Engenharia Agrícola, 2007. 4p.$c2007
520 $aEl modelo que se presenta permite simular la evolución de la concentración de un plaguicida en árboles frutales así como estimar su factor de bioconcentración (BCF) en los frutos, su absorción por las plantas a través de la corriente transpiratoria y el tiempo en que su concentración en los frutos será máxima. La robustez del modelo se evaluó mediante un análisis de sensibilidad de los valores BCF del plaguicida en los frutos con respecto a la variabilidad de los datos.
650 $aModelo Matemático
650 $aPesticida
700 1 $aRICARTE, B.
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Embrapa Meio Ambiente (CNPMA) |
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