Data/hora: 02/06/2024 01:26:13

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings	
Autores: 	Freitas,Cleverson Henrique de; Martins,Fabrina Bolzan; Abreu,Marcel Carvalho.	
Data: 	2017-05-01	
Ano: 	2017	
Palavras-chave: 	Air temperature; Leaf emission rate; Phyllochron; Seedling quality; Thermal requirement.	
Resumo: 	Abstract: The objective of this work was to estimate cardinal temperatures and phyllochron for the leaf development of the eucalyptus species Corymbia citriodora and Eucalyptus urophylla, in the seedling phase. A field experiment was carried out in a completely randomized design, in a 2x11 factorial arrangement, with the two eucalyptus species, 11 sowing dates, and five replicates, in the municipality of Itajubá, in the state of Minas Gerais, Brazil. The cardinal temperatures - base, optimum, and maximum - for leaf development were, respectively, 8.7, 17.1, and 41.3°C, for C. citriodora, and 11.5, 17.1, and 40.5°C for E. urophylla. The phyllochron of C. citriodora was 62.95°C day per leaf, and that of E. urophylla was 46.03°C day per leaf, which indicates that E. urophylla requires less energy accumulation than C. citriodora for leaf emission in the main stem.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000500283	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/s0100-204x2017000500001	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.52 n.5 2017	
Fonte: 	info:eu-repo/semantics/openAccess