Data/hora: 02/06/2024 17:56:37

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Maize leaf development under climate change scenarios	
Autores: 	Streck,Nereu Augusto; Langner,Josana Andréia; Lago,Isabel.	
Data: 	2010-11-01	
Ano: 	2010	
Palavras-chave: 	Zea mays; Elevated temperature; Frost risk; Global warming; Leaf appearance; Vegetative development.	
Resumo: 	The objective of this work was to simulate maize leaf development in climate change scenarios at Santa Maria, RS, Brazil, considering symmetric and asymmetric increases in air temperature. The model of Wang &amp;amp; Engel for leaf appearance rate (LAR), with genotype-specific coefficients for the maize variety BRS Missões, was used to simulate tip and expanded leaf accumulated number from emergence to flag leaf appearance and expansion, for nine emergence dates from August 15 to April 15. LAR model was run for each emergence date in 100-year climate scenarios: current climate, and +1, +2, +3, +4 and +5°C increase in mean air temperature, with symmetric and asymmetric increase in daily minimum and maximum air temperature. Maize crop failure due to frost decreased in elevated temperature scenarios, in the very early and very late emergence dates, indicating a lengthening in the maize growing season in warmer climates. The leaf development period in maize was shorter in elevated temperature scenarios, with greater shortening in asymmetric temperature increases, indicating that warmer nights accelerate vegetative development in maize.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001100001	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2010001100001	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.45 n.11 2010	
Fonte: 	info:eu-repo/semantics/openAccess