Data/hora: 09/06/2024 09:38:42

Provedor de dados: 	Revista Brasileira de Fruticultura	
País: 	Brazil	
Título: 	Anatomy, chlorophyll content and photosynthetic potential in grapevine leaves under plastic cover	
Autores: 	Chavarria,Geraldo; Santos,Henrique Pessoa dos; Castro,Luis Antônio Suita de; Marodin,Gilmar Arduíno Bettio; Bergamaschi,Homero.	
Data: 	2012-09-01	
Ano: 	2012	
Palavras-chave: 	Vitis vinifera; Adaptation; Grapevine; Protected crop; Microclimate.	
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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000300003	
Editor: 	Sociedade Brasileira de Fruticultura	
Relação: 	10.1590/S0100-29452012000300003	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Fruticultura  v.34 n.3 2012	
Fonte: 	info:eu-repo/semantics/openAccess