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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
30/11/2014 |
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Data da última atualização: |
30/11/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
SILVA, T. C.; ROSA, D. J.; SANTOS, D. W. R.; LUIZ, C.; BRIGHENTI, A. F.; SILVA, A. L. |
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Título: |
Mathematical models for estimating leaf area of Sangiovese variety |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF VINE & WINE, 37.., 2014, Mendoza, Argentina. Anais... Mendoza, Argentina: OIV, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to obtain a mathematical model more suitable to estimate the leaf
area of Sangiovese variety. About 80 leaves, of different sizes in the canopy were randomly collected and
measured with a graduated ruler. The lengths of the central vein (CV), the right lateral vein (RLV) and left
lateral vein (LLV) were measured. The real leaf area was measured with a portable leaf area analyzer.
Mathematical models were estimated by the ratio between leaf area and the mean central vein (CV) length and,
the square of central vein length (CV2), the sum of lateral veins length (ΣLV) and the mean square of lateral
veins length ( x LV2). Statistical analysis was performed using regression analysis. The mathematical models
that estimate more precisely the leaf area (LA) use the central vein length (CV) or the sum of lateral veins
length (ΣLV) in a linear equation (LA = 2124.82CV - 9553.98, R2 = 0.91; CV(%) = 16.24 and LA = 1253.4
ΣLV - 9973, R2 = 0.93, CV(%) = 14.74, respectively). Both models showed a significance level of 95% (α =
0.95) and high correlation (R2> 0.90). Estimating leaf area can be performed non-destructively using the
mathematical models. |
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Palavras-Chave: |
central veins; non-destructive analysis; Vitis vinifera L. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01876naa a2200217 a 4500
001 1122425
005 2014-11-30
008 2014 bl uuuu u00u1 u #d
100 1 $aSILVA, T. C.
245 $aMathematical models for estimating leaf area of Sangiovese variety$h[electronic resource]
260 $c2014
520 $aThe objective of this study was to obtain a mathematical model more suitable to estimate the leaf area of Sangiovese variety. About 80 leaves, of different sizes in the canopy were randomly collected and measured with a graduated ruler. The lengths of the central vein (CV), the right lateral vein (RLV) and left lateral vein (LLV) were measured. The real leaf area was measured with a portable leaf area analyzer. Mathematical models were estimated by the ratio between leaf area and the mean central vein (CV) length and, the square of central vein length (CV2), the sum of lateral veins length (ΣLV) and the mean square of lateral veins length ( x LV2). Statistical analysis was performed using regression analysis. The mathematical models that estimate more precisely the leaf area (LA) use the central vein length (CV) or the sum of lateral veins length (ΣLV) in a linear equation (LA = 2124.82CV - 9553.98, R2 = 0.91; CV(%) = 16.24 and LA = 1253.4 ΣLV - 9973, R2 = 0.93, CV(%) = 14.74, respectively). Both models showed a significance level of 95% (α = 0.95) and high correlation (R2> 0.90). Estimating leaf area can be performed non-destructively using the mathematical models.
653 $acentral veins
653 $anon-destructive analysis
653 $aVitis vinifera L
700 1 $aROSA, D. J.
700 1 $aSANTOS, D. W. R.
700 1 $aLUIZ, C.
700 1 $aBRIGHENTI, A. F.
700 1 $aSILVA, A. L.
773 $tIn: WORLD CONGRESS OF VINE & WINE, 37.., 2014, Mendoza, Argentina. Anais... Mendoza, Argentina: OIV, 2014.
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Epagri-Sede (Epagri-Sede) |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
20/12/2007 |
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Data da última atualização: |
20/04/2012 |
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Autoria: |
FRANCO, H. M. |
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Título: |
53 anos de trabalho: Estacao Experimental de Urussanga. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Urussanga: Jornal do Sul, 1995. |
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Idioma: |
Português |
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Conteúdo: |
Pesquisa agricola; Urussanga; Estacao Experimental; Historia |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00348nam a2200109 a 4500
001 1056231
005 2012-04-20
008 1995 bl uuuu u0uu1 u #d
100 1 $aFRANCO, H. M.
245 $a53 anos de trabalho$bEstacao Experimental de Urussanga.
260 $aUrussanga: Jornal do Sul$c1995
520 $aPesquisa agricola; Urussanga; Estacao Experimental; Historia
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