Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Ciênc. Agron. (1) BABT (1) Autor Paula,Nádia Figueiredo de (2) Paula,Rinaldo Cesar de (1) Prado,Carlos Henrique B. de A. (1) Ronquim,Carlos Cesar (1) Valadares,Jane (1) Palavra-chave Biomass allocation (1) Cerrado (1) Copaifera langsdorffii (1) Eriotheca gracilipes (1) Forest improvement (1) Growth in shade (1) Photosynthesis (1) Physiological characteristics (1) Water stress (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Growth and photosynthetic capacity in two woody species of cerrado vegetation under different radiation availability BABT Ronquim,Carlos Cesar; Prado,Carlos Henrique B. de A.; Paula,Nádia Figueiredo de. Seedlings of two woody species of cerrado vegetation, Copaifera langsdorffii and Eriotheca gracilipes, were studied under three different radiation availability (100, 80 and 30% transmittance). Full solar radiation brought about more biomass, higher total leaf area, higher maximal photosynthesis per crown on area or on mass bases and higher photosynthetic capacity on area bases. Only the photosynthetic capacity values on leaf mass bases were higher in both species under low radiation availability (80 and 30% transmittance). The differences of accumulated biomass appeared more clearly after 4 months of sowing but the root/shoot dry biomass ratio and height were maintained constant for both species independently of the available radiation. Cultivated under... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass allocation; Cerrado; Copaifera langsdorffii; Eriotheca gracilipes; Growth in shade; Photosynthesis. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200016 Physiological changes in eucalyptus hybrids under different irrigation regimes Rev. Ciênc. Agron. Valadares,Jane; Paula,Nádia Figueiredo de; Paula,Rinaldo Cesar de. With the expansion of the cultivation of eucalyptus into areas with limited water resources, recommending genotypes which are tolerant to low water availability is important in order to maximize productivity under such conditions. The aim of this work therefore was to evaluate five hybrids of Eucalyptus grandis x E. urophylla (H1 to H5) subjected to four irrigation regimes in the greenhouse: daily (IR1), every two days (IR2), every four days (IR4) and every six days (IR6). The following characteristics were evaluated: photosynthetic rate (A), transpiration (E), stomatal conductance (g s), leaf water potential (Ψw), leaf relative water content, photochemical efficiency and chlorophyll content index. Evaluations of A, g s and E were carried out on two... Tipo: Info:eu-repo/semantics/article Palavras-chave: Water stress; Forest improvement; Physiological characteristics. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000400019 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco