| Registro completo |
| Provedor de dados: |
94
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| País: |
Brazil
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| Título: |
Anatomy, chlorophyll content and photosynthetic potential in grapevine leaves under plastic cover
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| Autores: |
Chavarria,Geraldo
Santos,Henrique Pessoa dos
Castro,Luis Antônio Suita de
Marodin,Gilmar Arduíno Bettio
Bergamaschi,Homero
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| Data: |
2012-09-01
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| Ano: |
2012
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| Palavras-chave: |
Vitis vinifera
Adaptation
Grapevine
Protected crop
Microclimate
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| Resumo: |
The present study evaluated the anatomy, chlorophyll content and photosynthetic potential of grapevine leaves grown under plastic cover. The experiment was carried out in vineyards of Moscato Giallo cultivar covered and uncovered with plastic. A block design with 10 selected plants was used for each area (covered and uncovered). Twelve leaves (six of them fully exposed to solar radiation and six grown under shaded conditions) were collected from each area and were fixed and analyzed microscopically (thickness of the adaxial and abaxial epidermis and of the palisade and spongy parenchymas). Chlorophyll content and photosynthetic potential were determined in the vineyard at veraison and after harvest. Plastic covering increased the thickness of the palisade parenchyma in exposed and shaded leaves due to solar radiation restriction. However, the leaves from the covered vineyard did not have the same response to the restriction of solar radiation, as observed in the uncovered vineyard. The thickness of the adaxial and abaxial epidermis and of the spongy parenchyma did not vary due to solar radiation restriction. Chlorophyll content increased in the leaves of covered plants. The photosynthetic potential of the vines is not affected by solar radiation restriction imposed by plastic cover due to anatomical modification in leaves.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000300003
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| Editor: |
Sociedade Brasileira de Fruticultura
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| Relação: |
10.1590/S0100-29452012000300003
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Fruticultura v.34 n.3 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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